subject:(sedimentology)

College of William and Mary

1. Smith, Stanley Jarrell, II. Fine Sediment Dynamics in Dredge Plumes.

Degree: PhD, Virginia Institute of Marine Science, 2011, College of William and Mary

URL: https://scholarworks.wm.edu/etd/1539616859

► The research presented in this study is motivated by the need to improve predictions of transport and fate of cohesive sediments suspended during dredging operations.… (more)

▼ The research presented in this study is motivated by the need to improve predictions of transport and fate of cohesive sediments suspended during dredging operations. Two techniques are presented to quantify vertical sediment flux within dredge plumes. A mass-balance approach using an Acoustic Doppler Current Profiler (ADCP) is described and demonstrated to accurately estimate vertical mass flux and settling velocity for a suspension of fine sand from a dredged material placement operation. A new digital video settling column for simultaneous measurement of particle size and settling velocity is described and evaluated. The Particle Imaging Camera System (PICS) is a single-chambered, digital video settling column, which permits rapid acquisition (within 2 – 3 minutes) of image sequences within dredge plumes. Image analysis methods are presented, which provide improved estimates of particle size, settling velocity, and inferred particle density. A combination of Particle Tracking Velocimetry (PTV) and Particle Image Velocimetry (PIV) techniques is described, which permits general automation of image analysis collected from video settling columns. In the fixed image plane, large particle velocities are determined by PTV and small particle velocities are tracked by PIV and treated as surrogates for fluid velocities. The large-particle settling velocity (relative to the suspending fluid) is determined by the vector difference of the large and small particle settling velocities. The combined PTV/PIV image analysis approach is demonstrated for video settling column data collected within a mechanical dredge plume in Boston Harbor. The automated PTV/PIV approach significantly reduces uncertainties in measured settling velocity and inferred floc density. Size, settling velocities, and density of suspended sediments were measured with PICS within a trailing suction hopper dredge plume in San Francisco Bay. Results indicated that suspended sediments within the plume were predominantly in the clay and fine silt size classes, as aggregates with d>30 microm. Suspended bed aggregates (defined by densities of 1200 to 1800 kg m-3) represented 0.2 – 0.5 of total suspended mass, and size and settling velocity of this class were time invariant. Flocs (densities<1200 kg m-3) represented 0.5 to 0.8 of total suspended mass, and size and settling velocity of flocs was seen to increase with time. The peak diameter of bed aggregates and flocs occurred near 90 microm and 200 microm, respectively, corresponding to peak settling velocities of about 1 mm s-1 in each case. Floc settling velocities increased with particle size d1.1, while bed aggregate settling velocity increased like d1.3. Numerical modeling approaches to representing settling velocities for hopper dredge plumes are discussed in light of the experimental findings. Size-dependant settling velocities were well-described by a fractal-based relationship when the suspension was treated with discrete classes for each of the aggregate states. Time-dependent increases in floc size and…

Subjects/Keywords: Oceanography; Sedimentology

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APA (6^th Edition):

Smith, Stanley Jarrell, I. (2011). Fine Sediment Dynamics in Dredge Plumes. (Doctoral Dissertation). College of William and Mary. Retrieved from https://scholarworks.wm.edu/etd/1539616859

Chicago Manual of Style (16^th Edition):

Smith, Stanley Jarrell, II. “Fine Sediment Dynamics in Dredge Plumes.” 2011. Doctoral Dissertation, College of William and Mary. Accessed April 12, 2021. https://scholarworks.wm.edu/etd/1539616859.

MLA Handbook (7^th Edition):

Smith, Stanley Jarrell, II. “Fine Sediment Dynamics in Dredge Plumes.” 2011. Web. 12 Apr 2021.

Vancouver:

Smith, Stanley Jarrell I. Fine Sediment Dynamics in Dredge Plumes. [Internet] [Doctoral dissertation]. College of William and Mary; 2011. [cited 2021 Apr 12]. Available from: https://scholarworks.wm.edu/etd/1539616859.

Council of Science Editors:

Smith, Stanley Jarrell I. Fine Sediment Dynamics in Dredge Plumes. [Doctoral Dissertation]. College of William and Mary; 2011. Available from: https://scholarworks.wm.edu/etd/1539616859

Université de Neuchâtel

2. Rambeau, Claire. Cadmium anomalies in Jurassic carbonates (Bajocian, Oxfordian) in western and southern Europe.

Degree: 2006, Université de Neuchâtel

URL: http://doc.rero.ch/record/5693

► The trace metal cadmium (Cd) is a highly toxic element, with adverse effects both on human health as well as on ecosystem equilibriums. Its transfer… (more)

▼ The trace metal cadmium (Cd) is a highly toxic element, with adverse effects both on human health as well as on ecosystem equilibriums. Its transfer into the environment occurs by the mediation of natural and anthropogenic processes. Important natural sources comprise volcanic emissions and the biogeochemical weathering of Cd-enriched rocks, such as phosphorites or organic-rich deposits. This study considers the Cd concentrations in Jurassic limestone, in particular of Bajocian (Middle Jurassic) and Oxfordian (Late Jurassic) age in western and southern Europe. In the Jura Mountains area, carbonate rocks related to these time periods have been shown to contain surprisingly high Cd concentrations, especially since most carbonate rocks are known to be strongly depleted in Cd relative to the average crust. Soils that are developed from bedrocks of these geological ages equally show a strong tendency to be Cd-enriched to anomalously high levels. One of the specific aims of this study is to trace the geographical and stratigraphical distribution of Cd enrichments in Jurassic carbonates, in western and southern Europe, and consequently to develop a predictive tool to identify the presence of Cd-enriched soils related to Jurassic rock substrata in the investigated areas. A further goal is to reconstruct the sedimentary and environmental conditions that have led to Cd enrichments in Jurassic limestone. Ten sections in carbonate successions of Middle or Late Jurassic age have been analyzed in Switzerland, France, Spain and Italy. Additionally, a specific study aiming at quantifying the relationships between Jurassic limestone and associated soils has been conducted in the Lower Burgundy area (France). Our results from the analysis of carbonate sections suggest that for both periods Cd enrichments correspond to a widespread phenomenon in western and southern Europe, unrelated to the specificities of the carbonate facies. Two major features are nevertheless distinguished: - a general increase in Cd values is observed in both open-marine and platform settings, and particularly well marked in basin environments; this shift towards more elevated values is interpreted as a witness of general changes in the cadmium cycle at least within the western Tethyan realm, and perhaps on a wider geographical scale; - shallow-water sections additionally display major enrichments, with Cd values frequently above 1 μg/g, restricted to narrow stratigraphic intervals. These very high concentrations are attributed to a specific mechanism of enrichment. Cd enrichments in Jurassic shallow-water calcareous rocks are proposed to be related to (1) the quantity of Cd available in seawater, and (2) important biological activity and organic matter production on the carbonate platform margin. The general increase of Cd contents in both deep and shallow-water carbonates is tentatively linked to general environmental change, and especially to intense volcanic processes, which may have led to an increase in the availability of Cd in the environment. The results… Advisors/Committee Members: Karl B. (Dir.).

Subjects/Keywords: sedimentology

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APA (6^th Edition):

Rambeau, C. (2006). Cadmium anomalies in Jurassic carbonates (Bajocian, Oxfordian) in western and southern Europe. (Thesis). Université de Neuchâtel. Retrieved from http://doc.rero.ch/record/5693

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Rambeau, Claire. “Cadmium anomalies in Jurassic carbonates (Bajocian, Oxfordian) in western and southern Europe.” 2006. Thesis, Université de Neuchâtel. Accessed April 12, 2021. http://doc.rero.ch/record/5693.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Rambeau, Claire. “Cadmium anomalies in Jurassic carbonates (Bajocian, Oxfordian) in western and southern Europe.” 2006. Web. 12 Apr 2021.

Vancouver:

Rambeau C. Cadmium anomalies in Jurassic carbonates (Bajocian, Oxfordian) in western and southern Europe. [Internet] [Thesis]. Université de Neuchâtel; 2006. [cited 2021 Apr 12]. Available from: http://doc.rero.ch/record/5693.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Rambeau C. Cadmium anomalies in Jurassic carbonates (Bajocian, Oxfordian) in western and southern Europe. [Thesis]. Université de Neuchâtel; 2006. Available from: http://doc.rero.ch/record/5693

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Colorado

3. Allen, Daniel. Geologically constrained electrofacies classification of fluvial deposits: an example from the Cretaceous Mesaverde Group, Uinta and Piceance basins.

Degree: MS, Geological Sciences, 2013, University of Colorado

URL: https://scholar.colorado.edu/geol_gradetds/86

► Statistical classification methods consisting of the k-nearest neighbor algorithm (k-NN), a probabilistic clustering procedure (PCP), and a novel method which incorporates outcrop-based thickness criteria… (more)

Subjects/Keywords: Geology; Sedimentology

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APA (6^th Edition):

Allen, D. (2013). Geologically constrained electrofacies classification of fluvial deposits: an example from the Cretaceous Mesaverde Group, Uinta and Piceance basins. (Masters Thesis). University of Colorado. Retrieved from https://scholar.colorado.edu/geol_gradetds/86

Chicago Manual of Style (16^th Edition):

Allen, Daniel. “Geologically constrained electrofacies classification of fluvial deposits: an example from the Cretaceous Mesaverde Group, Uinta and Piceance basins.” 2013. Masters Thesis, University of Colorado. Accessed April 12, 2021. https://scholar.colorado.edu/geol_gradetds/86.

MLA Handbook (7^th Edition):

Allen, Daniel. “Geologically constrained electrofacies classification of fluvial deposits: an example from the Cretaceous Mesaverde Group, Uinta and Piceance basins.” 2013. Web. 12 Apr 2021.

Vancouver:

Allen D. Geologically constrained electrofacies classification of fluvial deposits: an example from the Cretaceous Mesaverde Group, Uinta and Piceance basins. [Internet] [Masters thesis]. University of Colorado; 2013. [cited 2021 Apr 12]. Available from: https://scholar.colorado.edu/geol_gradetds/86.

Council of Science Editors:

Allen D. Geologically constrained electrofacies classification of fluvial deposits: an example from the Cretaceous Mesaverde Group, Uinta and Piceance basins. [Masters Thesis]. University of Colorado; 2013. Available from: https://scholar.colorado.edu/geol_gradetds/86

University of Manitoba

4. Read, Jeffrey T. Late Holocene sedimentology paleohydrology and isotope geochemistry of three saline lakes in south-central Saskatchewan, Canada.

Degree: Geological Sciences, 2014, University of Manitoba

URL: http://hdl.handle.net/1993/23833

► Waldsea, Deadmoose, and Lenore lakes are three saline lakes located in the Lenore Basin drainage complex north of the town of Humboldt in south-central Saskatchewan,… (more)

▼ Waldsea, Deadmoose, and Lenore lakes are three saline lakes located in the Lenore Basin drainage complex north of the town of Humboldt in south-central Saskatchewan, Canada. Waldsea Lake and Deadmoose Lake are both meromictic, with anoxic, saline to hypersaline (~30-45 g L-1 TDS) Na-Mg-SO4 –rich monimolimnion waters underlying hyposaline to saline mixolimnions. Lenore Lake water shows similar ionic ratios but is less saline (~4 g L-1 TDS) and does not exhibit meromixis. Water levels in these closed-basin lakes have historically fluctuated dramatically. Present-day high levels in the basins have lead to considerable social, economic, and environmental disruptions and problems. Short sediment cores (~1 m length) were collected from deep-water offshore locations in each basin in order to study sedimentological and hydrological changes that have occurred over the past several millennia and to place the current high water levels into a longer-term perspective. The late Holocene stratigraphic sequences recovered from Waldsea and Deadmoose lakes are roughly similar: both comprise overall well-bedded, fine-grained, organic-rich sediment dominated by endogenic gypsum and detrital clay minerals, with associated quartz, plagioclase and carbonate minerals. They both contain laminae composed of endogenic aragonite. Two lithostratigraphic units are identified in each sequence on the basis of bedding, grain size, organic matter content, geochemistry, mineralogy, and δ18O and δ13C characteristics. Although chronostratigraphic control is limited, AMS 14C dating of plant remains in the cores indicate that the recovered sequence from Waldsea spans approximately 1500 years whereas the Deadmoose sequence covers about 3500 years. The recovered Lenore Lake sequence is mainly non-bedded and largely composed of fine to coarse-grained siliciclastics and detrital carbonate minerals. Like Waldsea and Deadmoose, two lithostratigraphic units are identified, however efforts to establish chronostratigraphic control for the section recovered from Lenore Lake were not successful. The short cores recovered from each of these basins show a clear change from shallow water deposition at the base to deep(er) water conditions further up the section. This change was likely a result of the development of a more positive hydrologic budget in each of the basins. The lack of chronological synchrony of the interpreted hydrologic changes, however, suggest that the effects of regional climatic fluctuations are masked by various intrinsic sedimentological, geochemical, and biological processes operating within each basin. Advisors/Committee Members: Last, William (Geological Science) (supervisor), Teller, Jim (Geological Science) Wang, Feiyue (Environment and Geography) (examiningcommittee).

Subjects/Keywords: sedimentology; limnology

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APA (6^th Edition):

Read, J. T. (2014). Late Holocene sedimentology paleohydrology and isotope geochemistry of three saline lakes in south-central Saskatchewan, Canada. (Masters Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/23833

Chicago Manual of Style (16^th Edition):

Read, Jeffrey T. “Late Holocene sedimentology paleohydrology and isotope geochemistry of three saline lakes in south-central Saskatchewan, Canada.” 2014. Masters Thesis, University of Manitoba. Accessed April 12, 2021. http://hdl.handle.net/1993/23833.

MLA Handbook (7^th Edition):

Read, Jeffrey T. “Late Holocene sedimentology paleohydrology and isotope geochemistry of three saline lakes in south-central Saskatchewan, Canada.” 2014. Web. 12 Apr 2021.

Vancouver:

Read JT. Late Holocene sedimentology paleohydrology and isotope geochemistry of three saline lakes in south-central Saskatchewan, Canada. [Internet] [Masters thesis]. University of Manitoba; 2014. [cited 2021 Apr 12]. Available from: http://hdl.handle.net/1993/23833.

Council of Science Editors:

Read JT. Late Holocene sedimentology paleohydrology and isotope geochemistry of three saline lakes in south-central Saskatchewan, Canada. [Masters Thesis]. University of Manitoba; 2014. Available from: http://hdl.handle.net/1993/23833

Wilfrid Laurier University

5. Parish, John D. Depositional and deformational structures in three 'esker-like' ridges, southwestern Ontario.

Degree: 1990, Wilfrid Laurier University

URL: https://scholars.wlu.ca/etd/356

► The Dundalk Till Plain in southwestern Ontario is crossed by five “esker-like” ridges, believed to have been formed simultaneously during the early stage of the… (more)

▼ The Dundalk Till Plain in southwestern Ontario is crossed by five “esker-like” ridges, believed to have been formed simultaneously during the early stage of the mid-Port Burce Stadial. The three middle ridges are the focus of this research, with each ridge having a different topographic form, but the length of, and distance between, ridges are similar. Occurrences of differing depositional structures and the presence of deformational structures over short lateral and vertical distances reveal the complexity of processes involved. The dominant primary sedimentary structures are large-scale tabular cross-beds. Many individual cross-beds are composed of poorly sorted, matrix-supported gravels. High variability in the type and characteristics of depositional structures over a short lateral distance is common within sections. The majority of deformational structures consist of high angle reverse faults and normal faults, associated with ice-contact support. Other deformational structures include a lateral series of “V-shaped” wedges which are exposed in two of the “esker ridges”. Thin “till-like” units were observed in several sections as well as continuous units of the Tavistock Till and Elma Till, the latter being a new easternmost, known location of this till. Small-scale deformation is seen in sediments immediately above and below several of these tills and “till-like” units. From the location of the tills and the nature of the structures, revisions to the local stratigraphic record were suggested which place the formation of the eastern two eskers during the early phase of the mid-Port Bruce Stadial. The western ridge was formed later, by ice associated with the Tavistock Till. The summation of field observations of depositional and deformational structures, paleocurrents and laboratory results, indicate that the deposits are eskers and not interlobate moraine. The interpretation of these results and observations indicate that the western ridge was formed separately, the other two ridges having been created early by similar processes.

Subjects/Keywords: Sedimentology

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APA (6^th Edition):

Parish, J. D. (1990). Depositional and deformational structures in three 'esker-like' ridges, southwestern Ontario. (Thesis). Wilfrid Laurier University. Retrieved from https://scholars.wlu.ca/etd/356

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Parish, John D. “Depositional and deformational structures in three 'esker-like' ridges, southwestern Ontario.” 1990. Thesis, Wilfrid Laurier University. Accessed April 12, 2021. https://scholars.wlu.ca/etd/356.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Parish, John D. “Depositional and deformational structures in three 'esker-like' ridges, southwestern Ontario.” 1990. Web. 12 Apr 2021.

Vancouver:

Parish JD. Depositional and deformational structures in three 'esker-like' ridges, southwestern Ontario. [Internet] [Thesis]. Wilfrid Laurier University; 1990. [cited 2021 Apr 12]. Available from: https://scholars.wlu.ca/etd/356.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Parish JD. Depositional and deformational structures in three 'esker-like' ridges, southwestern Ontario. [Thesis]. Wilfrid Laurier University; 1990. Available from: https://scholars.wlu.ca/etd/356

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Wilfrid Laurier University

6. Conrad, Catherine Treena. Spatial and temporal patterns of fluvial suspended sediment yield from eastern North America.

Degree: 2000, Wilfrid Laurier University

URL: https://scholars.wlu.ca/etd/486

► A knowledge of spatial and temporal patterns of sediment yields and an understanding of the factors that determine those patterns have theoretical, environmental and socio-economic… (more)

Subjects/Keywords: Sedimentology

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APA (6^th Edition):

Conrad, C. T. (2000). Spatial and temporal patterns of fluvial suspended sediment yield from eastern North America. (Thesis). Wilfrid Laurier University. Retrieved from https://scholars.wlu.ca/etd/486

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Conrad, Catherine Treena. “Spatial and temporal patterns of fluvial suspended sediment yield from eastern North America.” 2000. Thesis, Wilfrid Laurier University. Accessed April 12, 2021. https://scholars.wlu.ca/etd/486.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Conrad, Catherine Treena. “Spatial and temporal patterns of fluvial suspended sediment yield from eastern North America.” 2000. Web. 12 Apr 2021.

Vancouver:

Conrad CT. Spatial and temporal patterns of fluvial suspended sediment yield from eastern North America. [Internet] [Thesis]. Wilfrid Laurier University; 2000. [cited 2021 Apr 12]. Available from: https://scholars.wlu.ca/etd/486.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Conrad CT. Spatial and temporal patterns of fluvial suspended sediment yield from eastern North America. [Thesis]. Wilfrid Laurier University; 2000. Available from: https://scholars.wlu.ca/etd/486

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Illinois – Urbana-Champaign

7. Palkovic, Martin J. Depositional characterization of the Eau Claire Formation at the Illinois Basin - Decatur Project: facies, mineralogy and geochemistry.

Degree: MS, Geology, 2015, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/78424

► The Cambrian-age Eau Claire Formation serves as the primary seal at the Illinois Basin – Decatur Project (IBDP), a one million tonne carbon capture and… (more)

▼ The Cambrian-age Eau Claire Formation serves as the primary seal at the Illinois Basin – Decatur Project (IBDP), a one million tonne carbon capture and storage demonstration project located in Decatur, Illinois. The Eau Claire Formation conformably overlies the Mt. Simon Sandstone, the reservoir for the IBDP. At the IBDP site, analysis of drill core and geophysical logs reveals the Eau Claire consists of two major lithostratigraphic units: a siliciclastic dominant lower unit and a carbonate dominant upper unit. Within the Eau Claire, four major depositional facies exist within a tidally influenced, shallow marine depositional environment. These include (Unit A) intertidal mixed sand/mud flats and tidal channels of the foreshore environment; (Unit B) subtidal deposits of the offshore transition zone; (Unit C) subtidal deposits of the upper shoreface environment; and (Unit D) subtidal mixed carbonate/siliciclastic deposits. An approximately +8‰ δ13C excursion (R2 = 0.97) defines the Eau Claire at the IBDP site, possibly correlative with the Steptoean positive carbon isotope excursion (SPICE) found worldwide 500– 495 Ma ago. This study aims to elucidate the depositional environment, seal quality, age and provenance of the Eau Claire Formation in central Illinois. The mineralogy of the four depositional facies varies widely throughout the Eau Claire, with a persistently high K-feldspar content. The K-feldspar mode averages 8.7% for the formation and reaches an average of 20.3% in Unit C. Unit A is approximately 30 ft. (9.1 m) thick and exhibits intense bioturbation, ripple beds, and flaser/lenticular bedding, with an average porosity and permeability (n = 20) of 6.7% and 8.6 mD. Unit B is an approximately 40 ft. (12.2 m) thick tight shale sequence, with thin siltstones interbedded throughout. Unit B represents the most desirable seal facies in the formation with an average porosity (n=9) and permeability (n=4) of 5.6% and 2.0x10-5 mD. Unit C is the largest siliciclastic unit in the formation, spanning an average of 95 ft. (29 m) in all three wells at the IBDP. Unit C exhibits the classic tidalite signature of rhythmically interbedded siltstones and shales, with an average porosity and permeability (n = 50) of 9.4% and 0.9 mD. Unit D spans approximately 345 ft. (105.2 m) and begins as a mixed siliciclastic/carbonate environment, slowly becoming a dolomitized carbonate shelf dominated by oolitic packstone and grainstone. Advisors/Committee Members: Freiburg, Jared T (committee member).

Subjects/Keywords: Geology; Sedimentology

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APA (6^th Edition):

Palkovic, M. J. (2015). Depositional characterization of the Eau Claire Formation at the Illinois Basin - Decatur Project: facies, mineralogy and geochemistry. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/78424

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Palkovic, Martin J. “Depositional characterization of the Eau Claire Formation at the Illinois Basin - Decatur Project: facies, mineralogy and geochemistry.” 2015. Thesis, University of Illinois – Urbana-Champaign. Accessed April 12, 2021. http://hdl.handle.net/2142/78424.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Palkovic, Martin J. “Depositional characterization of the Eau Claire Formation at the Illinois Basin - Decatur Project: facies, mineralogy and geochemistry.” 2015. Web. 12 Apr 2021.

Vancouver:

Palkovic MJ. Depositional characterization of the Eau Claire Formation at the Illinois Basin - Decatur Project: facies, mineralogy and geochemistry. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2015. [cited 2021 Apr 12]. Available from: http://hdl.handle.net/2142/78424.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Palkovic MJ. Depositional characterization of the Eau Claire Formation at the Illinois Basin - Decatur Project: facies, mineralogy and geochemistry. [Thesis]. University of Illinois – Urbana-Champaign; 2015. Available from: http://hdl.handle.net/2142/78424

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Toronto

8. Hassan, Muhammad Sadeed. Outcrop Based Facies and Architecture Analysis of the Regional Intertonguing of Early Jurassic Kayenta Formation with the Navajo Sandstone, Kanab Canyon, Utah.

Degree: 2015, University of Toronto

URL: http://hdl.handle.net/1807/79801

►

The establishment of the extensive Navajo erg can be identified in the Lower Jurassic rocks of the Kanab Canyon area by three distinct and successively… (more)

Subjects/Keywords: Eolian sedimentology; Fluvial sedimentology; Utah; 0594

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APA (6^th Edition):

Hassan, M. S. (2015). Outcrop Based Facies and Architecture Analysis of the Regional Intertonguing of Early Jurassic Kayenta Formation with the Navajo Sandstone, Kanab Canyon, Utah. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/79801

Chicago Manual of Style (16^th Edition):

Hassan, Muhammad Sadeed. “Outcrop Based Facies and Architecture Analysis of the Regional Intertonguing of Early Jurassic Kayenta Formation with the Navajo Sandstone, Kanab Canyon, Utah.” 2015. Masters Thesis, University of Toronto. Accessed April 12, 2021. http://hdl.handle.net/1807/79801.

MLA Handbook (7^th Edition):

Hassan, Muhammad Sadeed. “Outcrop Based Facies and Architecture Analysis of the Regional Intertonguing of Early Jurassic Kayenta Formation with the Navajo Sandstone, Kanab Canyon, Utah.” 2015. Web. 12 Apr 2021.

Vancouver:

Hassan MS. Outcrop Based Facies and Architecture Analysis of the Regional Intertonguing of Early Jurassic Kayenta Formation with the Navajo Sandstone, Kanab Canyon, Utah. [Internet] [Masters thesis]. University of Toronto; 2015. [cited 2021 Apr 12]. Available from: http://hdl.handle.net/1807/79801.

Council of Science Editors:

Hassan MS. Outcrop Based Facies and Architecture Analysis of the Regional Intertonguing of Early Jurassic Kayenta Formation with the Navajo Sandstone, Kanab Canyon, Utah. [Masters Thesis]. University of Toronto; 2015. Available from: http://hdl.handle.net/1807/79801

University of New Orleans

9. Flathers, Joshua. The Role of Basin Configuration and Allogenic Controls on the Stratigraphic Evolution of River Mouth Bars.

Degree: MS, Earth and Environmental Sciences, 2018, University of New Orleans

URL: https://scholarworks.uno.edu/td/2462

► Deltas are important coastal systems throughout the world. River mouth bars are key landforms in the development of deltas, are characterized by sediment deposition,… (more)

Subjects/Keywords: allogenic; basin configuration; sedimentology; Delft3D; Sedimentology

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APA (6^th Edition):

Flathers, J. (2018). The Role of Basin Configuration and Allogenic Controls on the Stratigraphic Evolution of River Mouth Bars. (Thesis). University of New Orleans. Retrieved from https://scholarworks.uno.edu/td/2462

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Flathers, Joshua. “The Role of Basin Configuration and Allogenic Controls on the Stratigraphic Evolution of River Mouth Bars.” 2018. Thesis, University of New Orleans. Accessed April 12, 2021. https://scholarworks.uno.edu/td/2462.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Flathers, Joshua. “The Role of Basin Configuration and Allogenic Controls on the Stratigraphic Evolution of River Mouth Bars.” 2018. Web. 12 Apr 2021.

Vancouver:

Flathers J. The Role of Basin Configuration and Allogenic Controls on the Stratigraphic Evolution of River Mouth Bars. [Internet] [Thesis]. University of New Orleans; 2018. [cited 2021 Apr 12]. Available from: https://scholarworks.uno.edu/td/2462.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Flathers J. The Role of Basin Configuration and Allogenic Controls on the Stratigraphic Evolution of River Mouth Bars. [Thesis]. University of New Orleans; 2018. Available from: https://scholarworks.uno.edu/td/2462

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

10. Adriana Rost Rossi. Caracterização paleoambiental a partir dos componentes orgânicos particulados em depósitos bioturbados do Bloco Central da Jazida Carbonífera do Iruí (Cachoeira do Sul, RS).

Degree: 2008, Universidade do Vale do Rio do Sinos

URL: http://bdtd.unisinos.br/tde_busca/arquivo.php?codArquivo=865

►

A análise integrada entre a sedimentologia e a paleoicnologia da Formação Rio Bonito e da base da Formação Palermo (bacia do Paraná) na região de… (more)

▼

A análise integrada entre a sedimentologia e a paleoicnologia da Formação Rio Bonito e da base da Formação Palermo (bacia do Paraná) na região de Cachoeira do Sul (RS) vem demonstrando a presença de depósitos flúvio-estuarinos dominados por marés na porção inferior da Formação Rio Bonito, passando a estuarinos dominados por ondas no topo e rapidamente dando lugar a depósitos marinhos rasos (base da Formação Palermo). Visando validar e, se possível, refinar essas interpretações, foi realizada uma análise paleopalinológica de alta resolução dos depósitos bioturbados. Para tanto, foram selecionadas 26 amostras nos testemunhos de sondagem IC-07-RS, IC-44-RS, IC-03-RS e IC-12-RS, pertencentes ao bloco central da jazida carbonífera de Iruí (Cachoeira do Sul, RS), quando da análise paleoicnológica. Das amostras inicialmente coletadas, foram utilizadas para a análise paleopalinológica apenas as de natureza pelítica, de forma a homogeneizar possíveis disparidades na assembléia orgânica decorrentes de granulometria. Para a identificação dos paleopalinomorfos e preparação das amostras para palinofácies foram utilizadas as metodologias-padrão para preparação de amostras paleozóicas. O estudo sistemático específico dos paleopalinomorfos encontrados foi realizado apenas em nível genérico, a partir da extensa literatura disponível e por sucessivas análises comparativas, enquanto que o estudo de palinofácies envolveu o exame quantitativo e qualitativo no querogênio total presente nas amostras. Os dados obtidos com as análises paleopalinológicas e com análise estatística de agrupamento favoreceram o reconhecimento de padrões de assembléias paleopalinológicas específicas para depósitos estuarinos (domínio de esporos, gêneros Punctatisporites, Lundbladispora, Cyclogranisporites e Convolutispora, acrescidos de elementos algálicos) e marinhos rasos distais (dominância de grãos de pólen bissacados não teniados e/ou teniados e de poliplicados). Aliado ao conteúdo paleopalinológico estudado, encontrou-se em duas amostras colônias completas de algas Botryococcus braunii, fato incomum em sedimentos permianos da Bacia do Paraná, mas que auxiliaram no melhor entendimento dos eventos deposicionais relacionados. A análise palinológica efetuada nesse trabalho permitiu explicar os padrões não esperados na caracterização da icnofauna, favorecendo à melhor definição das assinaturas icnológicas, favoreceu a um melhor entendimento da gênese dos depósitos em condições marginais-marinhas e subsidiou interpretações paleoambientais em análises estratigráficas de alta resolução.

The integrated analysis of sedimentology and paleoichnology of the Rio Bonito Formation and the lower part of Palermo Formation (Paraná Basin) in Cachoeira do Sul region (Rio Grande do Sul State, south Brazil) revealed that the Rio Bonito Formation are characterized at the base by tide-dominated fluvio-estuarine deposits, changing upward to wave-dominated estuarine deposits, which are overlapped by the shallow marine deposits of the Palermo Formation. With the aim of refine such…

Advisors/Committee Members: Renata Guimarães Netto.

Subjects/Keywords: sedimentologia; sedimentology; GEOLOGIA

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APA (6^th Edition):

Rossi, A. R. (2008). Caracterização paleoambiental a partir dos componentes orgânicos particulados em depósitos bioturbados do Bloco Central da Jazida Carbonífera do Iruí (Cachoeira do Sul, RS). (Thesis). Universidade do Vale do Rio do Sinos. Retrieved from http://bdtd.unisinos.br/tde_busca/arquivo.php?codArquivo=865

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Rossi, Adriana Rost. “Caracterização paleoambiental a partir dos componentes orgânicos particulados em depósitos bioturbados do Bloco Central da Jazida Carbonífera do Iruí (Cachoeira do Sul, RS).” 2008. Thesis, Universidade do Vale do Rio do Sinos. Accessed April 12, 2021. http://bdtd.unisinos.br/tde_busca/arquivo.php?codArquivo=865.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Rossi, Adriana Rost. “Caracterização paleoambiental a partir dos componentes orgânicos particulados em depósitos bioturbados do Bloco Central da Jazida Carbonífera do Iruí (Cachoeira do Sul, RS).” 2008. Web. 12 Apr 2021.

Vancouver:

Rossi AR. Caracterização paleoambiental a partir dos componentes orgânicos particulados em depósitos bioturbados do Bloco Central da Jazida Carbonífera do Iruí (Cachoeira do Sul, RS). [Internet] [Thesis]. Universidade do Vale do Rio do Sinos; 2008. [cited 2021 Apr 12]. Available from: http://bdtd.unisinos.br/tde_busca/arquivo.php?codArquivo=865.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Rossi AR. Caracterização paleoambiental a partir dos componentes orgânicos particulados em depósitos bioturbados do Bloco Central da Jazida Carbonífera do Iruí (Cachoeira do Sul, RS). [Thesis]. Universidade do Vale do Rio do Sinos; 2008. Available from: http://bdtd.unisinos.br/tde_busca/arquivo.php?codArquivo=865

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Victoria University of Wellington

11. Howden, Angus David. Sedimentology and depositional environments of Murihiku Supergroup sediments exposed in the Southland Syncline, New Zealand: Implications for reservoir potential in the Great South Basin.

Degree: 2017, Victoria University of Wellington

URL: http://hdl.handle.net/10063/6915

► A considerable amount is known about the biostratigraphy and organic geochemistry of the Murihiku Supergroup sediments exposed in coastal outcrops of the Southland Syncline, New… (more)

▼ A considerable amount is known about the biostratigraphy and organic geochemistry of the Murihiku Supergroup sediments exposed in coastal outcrops of the Southland Syncline, New Zealand. Much less work has been undertaken on the sedimentology of these strata, or understanding their depositional environments and depositional trends through time. What these implications are for reservoir prospectivity in the adjacent Great South Basin, has also had little study focused on it. This thesis addresses these issues by undertaking outcrop-based sedimentological and facies interpretations of these rocks, thin-section based petrographic composition and provenance analysis, augmented by X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM), as well as porosity and permeability measurements from outcrop core plugs. Petroleum industry seismic data has additionally enabled seismic facies mapping of Murihiku rocks in the offshore Great South Basin. Outcrop observations point to a progressive change in depositional setting, from shelf / upper slope settings during the Late Triassic, to base of slope turbidite deposition in the Early Jurassic. This transgression is followed by regression into fluvial settings in the youngest outcropping Murihiku rocks in the study of Middle Jurassic age. Petrographically the sandstones are feldspathic and lithic arenites and feldspathic and lithic wackes. Provenance suggests derivation from an evolving, intermediate arc that was becoming more siliceous through Late Triassic and Middle Jurassic time. Diagenesis is characterised by early calcite and chlorite precipitation which have almost completely destroyed any primary porosity. Any secondary micro porosity has subsequently been infilled through dissolution of framework grains and zeolitization. SEM and core plug porosity and permeability measurements corroborate the diagenetic changes observed petrographically, with only fluvial facies of Middle Jurassic (Upper Temaikan) age showing any measureable porosity or permeability. As a result, reservoir potential for the Late Triassic to Middle Jurassic, Murihiku Supergroup rocks analysed in this study is low. Younger Murihiku sandstones which are postulated to occur offshore in the Great South Basin are likely to be less influenced by burial diagenesis. As shown from North Island occurrences, these younger successions hold some potential.The reservoir potential for these youngest portions of the Murihiku succession therefore remains positive, both in the Great South Basin, as well as other frontier areas of Zealandia, and continue to provide an exploration target for the petroleum industry. Advisors/Committee Members: Crampton, James, Browne, Greg.

Subjects/Keywords: Geology; Sedimentology; Petroleum

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APA (6^th Edition):

Howden, A. D. (2017). Sedimentology and depositional environments of Murihiku Supergroup sediments exposed in the Southland Syncline, New Zealand: Implications for reservoir potential in the Great South Basin. (Masters Thesis). Victoria University of Wellington. Retrieved from http://hdl.handle.net/10063/6915

Chicago Manual of Style (16^th Edition):

Howden, Angus David. “Sedimentology and depositional environments of Murihiku Supergroup sediments exposed in the Southland Syncline, New Zealand: Implications for reservoir potential in the Great South Basin.” 2017. Masters Thesis, Victoria University of Wellington. Accessed April 12, 2021. http://hdl.handle.net/10063/6915.

MLA Handbook (7^th Edition):

Howden, Angus David. “Sedimentology and depositional environments of Murihiku Supergroup sediments exposed in the Southland Syncline, New Zealand: Implications for reservoir potential in the Great South Basin.” 2017. Web. 12 Apr 2021.

Vancouver:

Howden AD. Sedimentology and depositional environments of Murihiku Supergroup sediments exposed in the Southland Syncline, New Zealand: Implications for reservoir potential in the Great South Basin. [Internet] [Masters thesis]. Victoria University of Wellington; 2017. [cited 2021 Apr 12]. Available from: http://hdl.handle.net/10063/6915.

Council of Science Editors:

Howden AD. Sedimentology and depositional environments of Murihiku Supergroup sediments exposed in the Southland Syncline, New Zealand: Implications for reservoir potential in the Great South Basin. [Masters Thesis]. Victoria University of Wellington; 2017. Available from: http://hdl.handle.net/10063/6915

College of William and Mary

12. Marshall, Nicole R. Signature of Recent Sediment Accumulating in Prince William Sound, Alaska: A Record of Storms, Earthquakes, and Seasonal Inputs.

Degree: MS, Virginia Institute of Marine Science, 2015, College of William and Mary

URL: https://scholarworks.wm.edu/etd/1539617952

► This study focuses on the development o f provenance signatures for sediments accumulating in Prince William Sound, with an emphasis on interpreting mechanisms of… (more)

▼ This study focuses on the development o f provenance signatures for sediments accumulating in Prince William Sound, with an emphasis on interpreting mechanisms of sediment deposition using historical earthquake, wave, river discharge, and glacial outburst flood records. A highresolution sedimentary sequence in Prince William Sound, Alaska contains sediments sourced from local watersheds as a result of seasonal and event-driven sedimentation. This study contributes to the development of paleo-proxies for sediment provenance, earthquakes, shelf sediment resuspension, and Copper River discharge. Geochemical studies of sediment cores and end-member samples using X-ray fluorescence and inductively coupled plasma mass spectrometry allows for the development of elemental proxies for sediment provenance during the past ~ 100 years. Seasonal sedimentation is resolved at Hinchinbrook Entrance as a result of high sediment accumulation rates and distinct textural and geochemical changes. Sediments deposited during the winter are derived from shelf sediment resuspension and sediments deposited during the summers are sourced from a complex mixture of the Copper River plume and direct discharge within Prince William Sound. Analyses of a continuous 18-year (1995—2013) wave record reveal that shelf sediment resuspension has a strong seasonality with large waves in the winters compared to the summers. More than 65 % of the sediments at Hinchinbrook Entrance accumulate during the winters, and those sediments are sourced from the shelf with distinct provenance signatures from the Copper River Basin. A north-south transect of sediment cores in Prince William Sound reveal that provenance signatures can be used to identify deposits in the Sound that were initiated by different mechanisms. Deposits in northern Prince William Sound that correspond to large earthquakes occurred in 1912, 1964, and 1983. A similar deposit from ~ 1895 in northern Prince William Sound, prior to historical earthquake records, may also have been initiated from a large earthquake in the 1890’s. Additional deposits in southern Prince William Sound from 1977 and 1992 were likely formed due to an increase in Copper River discharge. The 1977 deposit occurred during a shift to abruptly warmer climate conditions in Alaska that resulted from the well-documented climate regime shift in the North Pacific in 1976—1977. The most recent identifiable deposit in the north-south transect has an age of 2001 with sediments that contain distinct Prince William Sound provenance signatures. Relative to any other season in the 18-year record, the winter of 2001 experienced the highest bottom wave orbital velocity on the Gulf of Alaska continental shelf, the largest area of the shelf with sediment in resuspension, and the shortest time between resuspension events. During a time of minimal seismicity, slope failure within the southern portion of the central channel in Prince William Sound may have occurred due to the extreme waves in the winter of 2001 and could explain the occurrence…

Subjects/Keywords: Geology; Oceanography; Sedimentology

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APA (6^th Edition):

Marshall, N. R. (2015). Signature of Recent Sediment Accumulating in Prince William Sound, Alaska: A Record of Storms, Earthquakes, and Seasonal Inputs. (Masters Thesis). College of William and Mary. Retrieved from https://scholarworks.wm.edu/etd/1539617952

Chicago Manual of Style (16^th Edition):

Marshall, Nicole R. “Signature of Recent Sediment Accumulating in Prince William Sound, Alaska: A Record of Storms, Earthquakes, and Seasonal Inputs.” 2015. Masters Thesis, College of William and Mary. Accessed April 12, 2021. https://scholarworks.wm.edu/etd/1539617952.

MLA Handbook (7^th Edition):

Marshall, Nicole R. “Signature of Recent Sediment Accumulating in Prince William Sound, Alaska: A Record of Storms, Earthquakes, and Seasonal Inputs.” 2015. Web. 12 Apr 2021.

Vancouver:

Marshall NR. Signature of Recent Sediment Accumulating in Prince William Sound, Alaska: A Record of Storms, Earthquakes, and Seasonal Inputs. [Internet] [Masters thesis]. College of William and Mary; 2015. [cited 2021 Apr 12]. Available from: https://scholarworks.wm.edu/etd/1539617952.

Council of Science Editors:

Marshall NR. Signature of Recent Sediment Accumulating in Prince William Sound, Alaska: A Record of Storms, Earthquakes, and Seasonal Inputs. [Masters Thesis]. College of William and Mary; 2015. Available from: https://scholarworks.wm.edu/etd/1539617952

College of William and Mary

13. Miller, Eric J. High-Resolution Sediment Records of Seismicity and Seasonal Sedimentation from Prince William Sound, Alaska, using XRF Core Scanning.

Degree: MS, Virginia Institute of Marine Science, 2014, College of William and Mary

URL: https://scholarworks.wm.edu/etd/1539617947

► The southern coast of Alaska is a climatically sensitive and tectonically active region, however due to its remoteness and harsh climate there are limited… (more)

▼ The southern coast of Alaska is a climatically sensitive and tectonically active region, however due to its remoteness and harsh climate there are limited long-term historical records of environmental conditions such as storm frequency, river discharge, and earthquakes. In order to determine the potential for Prince William Sound sediments to contain high-resolution paleorecords of these conditions, a suite of 11 gravity cores was collected within the Sound in order to determine the modern day sediment depositional trends and to develop elemental proxies for earthquakes and seasonal sedimentation. 210Pb/137Cs-derived sedimentation rates and grain size trends indicate that there are two distinct sediment sources to the Sound; an allochthonous source of sediment that is advected into the Sound through Hinchinbrook Entrance, and an autochthonous source of sediment from the Columbia Glacier region of the northern Sound. Cyclic variations in grain size were identified in Hinchinbrook Entrance sediments using the XRF Sr/Pb ratio and were interpreted to be the result of seasonal sedimentation; with coarse-grained sediments deposited during the winter when storm-driven wave and currents in the nearshore region are high, and fine-grained sediments deposited during the summer when costal conditions are less energetic and when the discharge and transport of sediments from the Copper River is high. Additionally, light and dark colored laminations in northern Hinchinbrook Entrance sediments were interpreted to be the result of seasonal variations in the supply and preservation of organic matter; with high concentrations of organic matter preserved in the summer when primary production, the flux of terrestrial organic matter from rivers, and costal upwelling of potentially low oxygenated waters is high, and low organic matter concentrations preserved in the winter when primary production and river discharge are low, and when downwelling conditions likely introduce highly oxygenated waters. The use of the XRF Br/Cl ratio as a proxy for marine organic matter suggested that at least a portion of the dark, organic-rich, summer deposits had a marine origin, and may therefore be a potential proxy for seasonal sedimentation under certain conditions. Gravity flow deposits from the northern Sound were identified as having a source from the Columbia Glacier region using the XRF K/Ca ratio. The gravity flows that caused these deposits were identified as being triggered by historically recorded earthquakes, which likely remobilized sediment on the steep slopes of the northern channel and which then flowed downslope to the south. The results of this study indicate that the rapidly accumulating sediments in Hinchinbrook Entrance potentially contain high resolution records of Copper River discharge, storm activity and primary production, whereas sediments in the northern Sound may contain a regional seismic record.

Subjects/Keywords: Geology; Oceanography; Sedimentology

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APA (6^th Edition):

Miller, E. J. (2014). High-Resolution Sediment Records of Seismicity and Seasonal Sedimentation from Prince William Sound, Alaska, using XRF Core Scanning. (Masters Thesis). College of William and Mary. Retrieved from https://scholarworks.wm.edu/etd/1539617947

Chicago Manual of Style (16^th Edition):

Miller, Eric J. “High-Resolution Sediment Records of Seismicity and Seasonal Sedimentation from Prince William Sound, Alaska, using XRF Core Scanning.” 2014. Masters Thesis, College of William and Mary. Accessed April 12, 2021. https://scholarworks.wm.edu/etd/1539617947.

MLA Handbook (7^th Edition):

Miller, Eric J. “High-Resolution Sediment Records of Seismicity and Seasonal Sedimentation from Prince William Sound, Alaska, using XRF Core Scanning.” 2014. Web. 12 Apr 2021.

Vancouver:

Miller EJ. High-Resolution Sediment Records of Seismicity and Seasonal Sedimentation from Prince William Sound, Alaska, using XRF Core Scanning. [Internet] [Masters thesis]. College of William and Mary; 2014. [cited 2021 Apr 12]. Available from: https://scholarworks.wm.edu/etd/1539617947.

Council of Science Editors:

Miller EJ. High-Resolution Sediment Records of Seismicity and Seasonal Sedimentation from Prince William Sound, Alaska, using XRF Core Scanning. [Masters Thesis]. College of William and Mary; 2014. Available from: https://scholarworks.wm.edu/etd/1539617947

University of Nevada – Las Vegas

14. Maharjan, Dev Krishna. Environmental Changes across the Early Mississippian Carbon Isotope Excursion.

Degree: PhD, Geoscience, 2017, University of Nevada – Las Vegas

URL: https://digitalscholarship.unlv.edu/thesesdissertations/3005

► The Early Mississippian K–O (Kinderhookian-Osagean) δ13C excursion or TICE (mid-Tournaisian carbon isotope excursion) is characterized by an anomalous carbonate carbon isotope value of ≥5‰… (more)

▼ The Early Mississippian K–O (Kinderhookian-Osagean) δ13C excursion or TICE (mid-Tournaisian carbon isotope excursion) is characterized by an anomalous carbonate carbon isotope value of ≥5‰ that has been documented from numerous stratigraphic sections across the globe. This δ13C excursion coincides with global cooling and sea-level fall and predicts a significant change in seawater chemistry. However, sulfate sulfur isotope data across the K-O δ13C excursion reported in previous studies seem not to be responsive to the carbon cycle. Likewise, a recent study has documented a unidirectional increase in nitrogen isotopes across this excursion, which is not anticipated considering the amount of organic carbon burial required to form the prominent positive δ13C excursion and its resultant oxygen increase and global cooling. This study aims to understand the coupling between carbon, nitrogen, sulfur and oxygen cycles at this critical transition. This research uses Early Mississippian carbonate successions from Star Range (SR), Mountain Home Range (MH), and Pahranagat Range (PR) that indicate peritidal, shallow subidal to deep subtidal depositional environment in the Great Basin of western USA. Samples from these sections are analyzed for carbon isotopes (δ13C), sulfur isotopes (δ34S), nitrogen isotopes (δ15N) and oxygen isotopes (δ18O). Additionally, SR samples are analyzed for fluid inclusions, REEs, major and trace element concentrations. Stratigraphic records from PR and MH sections indicate that the outer shelf section (PR) may be more representative of seawater isotope record. The δ34SCAS records a ≥7‰ positive anomaly near the peak of the K-O δ13C excursion. Numerical modeling suggests that pyrite burial rates 5–10 times higher than that of the modern ocean are required to produce the observed δ34SCAS anomaly in a sulfate-rich Early Mississippian ocean. The aerial and volumetric expansion of sulfate reduction and pyrite burial was likely fused by abundantly available organic matter at the peak of the K-O δ13C excursion when oxygen minimum zone (OMZ) in the ocean has substantially expanded. At the falling limb of the K-O δ13C excursion, coupled negative shifts in δ34SCAS and δ18OCAS imply increase of sulfide reoxidation in the ocean and pyrite-derived riverine sulfate input, in response to global cooling, sea-level fall, and oxygenation resulted from enhanced organic carbon and pyrite burial, resulting in gradually decreasing the volume of OMZ. Such a change in ocean redox is reflected in the carbon and nitrogen cycles. Stratigraphic records indicate that the deeper-water outer shelf section (PR) show double spikes in both δ13Ccarb and δ13Corg with a magnitude up to 7‰ and a negative shift down to 4‰ between the peaks which is more representative of the seawater isotope record. However, considering the sensitivity of δ15N to redox conditions of depositional environments, the coupled δ13Ccarb – δ15N pattern from the MH section may better record the isotope signature of the oceanic nitrate (NO3–) reservoir,… Advisors/Committee Members: Ganqing Jiang, Stephen M. Rowland, Elisabeth M. Hausrath, Rosemarie Came, Paul Schulte.

Subjects/Keywords: Climate; Geology; Sedimentology

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APA (6^th Edition):

Maharjan, D. K. (2017). Environmental Changes across the Early Mississippian Carbon Isotope Excursion. (Doctoral Dissertation). University of Nevada – Las Vegas. Retrieved from https://digitalscholarship.unlv.edu/thesesdissertations/3005

Chicago Manual of Style (16^th Edition):

Maharjan, Dev Krishna. “Environmental Changes across the Early Mississippian Carbon Isotope Excursion.” 2017. Doctoral Dissertation, University of Nevada – Las Vegas. Accessed April 12, 2021. https://digitalscholarship.unlv.edu/thesesdissertations/3005.

MLA Handbook (7^th Edition):

Maharjan, Dev Krishna. “Environmental Changes across the Early Mississippian Carbon Isotope Excursion.” 2017. Web. 12 Apr 2021.

Vancouver:

Maharjan DK. Environmental Changes across the Early Mississippian Carbon Isotope Excursion. [Internet] [Doctoral dissertation]. University of Nevada – Las Vegas; 2017. [cited 2021 Apr 12]. Available from: https://digitalscholarship.unlv.edu/thesesdissertations/3005.

Council of Science Editors:

Maharjan DK. Environmental Changes across the Early Mississippian Carbon Isotope Excursion. [Doctoral Dissertation]. University of Nevada – Las Vegas; 2017. Available from: https://digitalscholarship.unlv.edu/thesesdissertations/3005

University of Nevada – Las Vegas

15. Williams, Patricia Suzanne. Carbon Isotope Variations Associated with a Middle Ordovician Karstic Unconformity.

Degree: MS, Geoscience, 2015, University of Nevada – Las Vegas

URL: https://digitalscholarship.unlv.edu/thesesdissertations/2447

► Large negative carbon isotope (δ¹³C) excursions have been documented from late Neoproterozoic-Paleozoic successions. These δ¹³C excursions have been widely used for regional and global… (more)

Subjects/Keywords: Geochemistry; Geology; Sedimentology

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APA (6^th Edition):

Williams, P. S. (2015). Carbon Isotope Variations Associated with a Middle Ordovician Karstic Unconformity. (Masters Thesis). University of Nevada – Las Vegas. Retrieved from https://digitalscholarship.unlv.edu/thesesdissertations/2447

Chicago Manual of Style (16^th Edition):

Williams, Patricia Suzanne. “Carbon Isotope Variations Associated with a Middle Ordovician Karstic Unconformity.” 2015. Masters Thesis, University of Nevada – Las Vegas. Accessed April 12, 2021. https://digitalscholarship.unlv.edu/thesesdissertations/2447.

MLA Handbook (7^th Edition):

Williams, Patricia Suzanne. “Carbon Isotope Variations Associated with a Middle Ordovician Karstic Unconformity.” 2015. Web. 12 Apr 2021.

Vancouver:

Williams PS. Carbon Isotope Variations Associated with a Middle Ordovician Karstic Unconformity. [Internet] [Masters thesis]. University of Nevada – Las Vegas; 2015. [cited 2021 Apr 12]. Available from: https://digitalscholarship.unlv.edu/thesesdissertations/2447.

Council of Science Editors:

Williams PS. Carbon Isotope Variations Associated with a Middle Ordovician Karstic Unconformity. [Masters Thesis]. University of Nevada – Las Vegas; 2015. Available from: https://digitalscholarship.unlv.edu/thesesdissertations/2447

College of William and Mary

16. Birchler, Justin J. Sediment Deposition and Reworking: A Modeling Study using Isotopically Tagged Sediment Classes.

Degree: MS, Virginia Institute of Marine Science, 2014, College of William and Mary

URL: https://scholarworks.wm.edu/etd/1539617950

► A sediment transport model within the Regional Ocean Modeling System (ROMS) was used to examine how repeated cycles of deposition, erosion, and bioturbation influence… (more)

Subjects/Keywords: Geology; Oceanography; Sedimentology

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APA (6^th Edition):

Birchler, J. J. (2014). Sediment Deposition and Reworking: A Modeling Study using Isotopically Tagged Sediment Classes. (Masters Thesis). College of William and Mary. Retrieved from https://scholarworks.wm.edu/etd/1539617950

Chicago Manual of Style (16^th Edition):

Birchler, Justin J. “Sediment Deposition and Reworking: A Modeling Study using Isotopically Tagged Sediment Classes.” 2014. Masters Thesis, College of William and Mary. Accessed April 12, 2021. https://scholarworks.wm.edu/etd/1539617950.

MLA Handbook (7^th Edition):

Birchler, Justin J. “Sediment Deposition and Reworking: A Modeling Study using Isotopically Tagged Sediment Classes.” 2014. Web. 12 Apr 2021.

Vancouver:

Birchler JJ. Sediment Deposition and Reworking: A Modeling Study using Isotopically Tagged Sediment Classes. [Internet] [Masters thesis]. College of William and Mary; 2014. [cited 2021 Apr 12]. Available from: https://scholarworks.wm.edu/etd/1539617950.

Council of Science Editors:

Birchler JJ. Sediment Deposition and Reworking: A Modeling Study using Isotopically Tagged Sediment Classes. [Masters Thesis]. College of William and Mary; 2014. Available from: https://scholarworks.wm.edu/etd/1539617950

17. Wei, Jeremy H. Biomarker and Sedimentological Investigations of Mis 8 through Mis 12 from Lake El'gygytgyn, Ne Arctic Russia.

Degree: MS, Geosciences, 2013, University of Massachusetts

URL: https://scholarworks.umass.edu/theses/1164

► Abstract Multiple proxy analysis of lake sediment records are crucial for understanding changes in environmental and climate conditions over historical and geological time. Most… (more)

▼ Abstract Multiple proxy analysis of lake sediment records are crucial for understanding changes in environmental and climate conditions over historical and geological time. Most recently, the use of biomarker proxies coupled with sedimentological investigations provides a new approach for gaining insight into the lake processes that capture information about past climate change. This approach is applied here to better understand the paleoclimate record from Lake El’gygytgyn in Western Beringia. Multiple organic geochemical compound concentrations were measure as proxies for both aquatic and terrestrial biological productivity. Measurements of n-alkane (plant leaf waxes) as well as concentrations of the compounds arborinol (marker for trees), dinosterol (dinoflagellates), and long chain (C₂₈ – C₃₂) 1,15 n-alkyl diols (eustigmatophyte algae) demonstrate warming conditions around Lake El’gygytgyn during MIS 9 and MIS 11, especially when compared to diatom production and palynological investigations from Melles et al. (2012). These time periods illustrate the presence of extensive forest cover as well as elevated concentrations of all aquatic biomarkers analyzed, corroborating their “super interglacial” designation. Analysis of branched glycerol dialkyl glycerol tetraethers, a relatively new proxy used to estimate mean annual temperatures and soil pH, was applied also suggesting warming conditions during MIS 9 and MIS 11, although further calibration techniques are needed to accurately estimate temperature changes. Sedimentological results include the analysis of bulk mineralogy, clay mineralogy, iron oxide, and color measurements for the same MIS 8 through MIS 12 interval. The hue color parameter, measured from high resolution core scans, suggests a link to global climate records, with green sediments reflective of cold intervals and red sediments indicative of warmer climate conditions. Validation of the color record was done in part by analyzing the clay mineralogy and the abundances of clay minerals. These data show that clay deposition dominates interglacial periods. Moreover the clay polytypes can be linked to bedrock weathering. Bulk mineralogy measurements allow for the reconstruction of synthetic color spectra which link mineralogy to sediment color. Overprinted on the mineralogical color signal is red color staining from iron oxide minerals, formed within the catchment during wet intervals when increasing amounts of eroded Fe – bearing silicate minerals are available for oxidation. If true, interpretation of the hue record then suggests hue is a proxy for wet/dry conditions within the lake, and when paired with the biomarker analysis shows significant warmer and wetter conditions during MIS 9 and 11. However, the hue record also demonstrates notable variability outside of these two interglacial periods, not recognized by other proxies, are not currently well understood. Overall, the multi-proxy results from this work can… Advisors/Committee Members: Julie Brigham-Grette, Isla S. Castañeda.

Subjects/Keywords: Biogeochemistry; Geology; Sedimentology

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APA (6^th Edition):

Wei, J. H. (2013). Biomarker and Sedimentological Investigations of Mis 8 through Mis 12 from Lake El'gygytgyn, Ne Arctic Russia. (Masters Thesis). University of Massachusetts. Retrieved from https://scholarworks.umass.edu/theses/1164

Chicago Manual of Style (16^th Edition):

Wei, Jeremy H. “Biomarker and Sedimentological Investigations of Mis 8 through Mis 12 from Lake El'gygytgyn, Ne Arctic Russia.” 2013. Masters Thesis, University of Massachusetts. Accessed April 12, 2021. https://scholarworks.umass.edu/theses/1164.

MLA Handbook (7^th Edition):

Wei, Jeremy H. “Biomarker and Sedimentological Investigations of Mis 8 through Mis 12 from Lake El'gygytgyn, Ne Arctic Russia.” 2013. Web. 12 Apr 2021.

Vancouver:

Wei JH. Biomarker and Sedimentological Investigations of Mis 8 through Mis 12 from Lake El'gygytgyn, Ne Arctic Russia. [Internet] [Masters thesis]. University of Massachusetts; 2013. [cited 2021 Apr 12]. Available from: https://scholarworks.umass.edu/theses/1164.

Council of Science Editors:

Wei JH. Biomarker and Sedimentological Investigations of Mis 8 through Mis 12 from Lake El'gygytgyn, Ne Arctic Russia. [Masters Thesis]. University of Massachusetts; 2013. Available from: https://scholarworks.umass.edu/theses/1164

University of Oxford

18. Naing, Tin Tin. Age, depositional history and tectonics of the Indo-Burman ranges.

Degree: PhD, 2019, University of Oxford

URL: http://ora.ox.ac.uk/objects/uuid:eade5a52-5bc8-4b8b-bc69-5afc3d0d37a8 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.816666

► This thesis examines the provenance and depositional processes of the sedimentary rocks of the Indo-Burman Ranges (IBR), discusses the tectonic evolution of the IBR, and… (more)

Subjects/Keywords: Sedimentology and Tectonics

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APA (6^th Edition):

Naing, T. T. (2019). Age, depositional history and tectonics of the Indo-Burman ranges. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:eade5a52-5bc8-4b8b-bc69-5afc3d0d37a8 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.816666

Chicago Manual of Style (16^th Edition):

Naing, Tin Tin. “Age, depositional history and tectonics of the Indo-Burman ranges.” 2019. Doctoral Dissertation, University of Oxford. Accessed April 12, 2021. http://ora.ox.ac.uk/objects/uuid:eade5a52-5bc8-4b8b-bc69-5afc3d0d37a8 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.816666.

MLA Handbook (7^th Edition):

Naing, Tin Tin. “Age, depositional history and tectonics of the Indo-Burman ranges.” 2019. Web. 12 Apr 2021.

Vancouver:

Naing TT. Age, depositional history and tectonics of the Indo-Burman ranges. [Internet] [Doctoral dissertation]. University of Oxford; 2019. [cited 2021 Apr 12]. Available from: http://ora.ox.ac.uk/objects/uuid:eade5a52-5bc8-4b8b-bc69-5afc3d0d37a8 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.816666.

Council of Science Editors:

Naing TT. Age, depositional history and tectonics of the Indo-Burman ranges. [Doctoral Dissertation]. University of Oxford; 2019. Available from: http://ora.ox.ac.uk/objects/uuid:eade5a52-5bc8-4b8b-bc69-5afc3d0d37a8 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.816666

Universiteit Utrecht

19. Michielsen, P.J.T. Turbidity currents linked to levee composition; An experimental approach.

Degree: 2015, Universiteit Utrecht

URL: http://dspace.library.uu.nl:8080/handle/1874/334216

► An experimental approach of turbidity currents is presented in order to relate the internal composition of bounding levees based on their particle size with the… (more)

Subjects/Keywords: Sedimentology; Turbidity current; Eurotank; Levees

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APA (6^th Edition):

Michielsen, P. J. T. (2015). Turbidity currents linked to levee composition; An experimental approach. (Masters Thesis). Universiteit Utrecht. Retrieved from http://dspace.library.uu.nl:8080/handle/1874/334216

Chicago Manual of Style (16^th Edition):

Michielsen, P J T. “Turbidity currents linked to levee composition; An experimental approach.” 2015. Masters Thesis, Universiteit Utrecht. Accessed April 12, 2021. http://dspace.library.uu.nl:8080/handle/1874/334216.

MLA Handbook (7^th Edition):

Michielsen, P J T. “Turbidity currents linked to levee composition; An experimental approach.” 2015. Web. 12 Apr 2021.

Vancouver:

Michielsen PJT. Turbidity currents linked to levee composition; An experimental approach. [Internet] [Masters thesis]. Universiteit Utrecht; 2015. [cited 2021 Apr 12]. Available from: http://dspace.library.uu.nl:8080/handle/1874/334216.

Council of Science Editors:

Michielsen PJT. Turbidity currents linked to levee composition; An experimental approach. [Masters Thesis]. Universiteit Utrecht; 2015. Available from: http://dspace.library.uu.nl:8080/handle/1874/334216

University of Alberta

20. Dicks, Robynn M. Neoichnology and Sedimentology of the Fluvial-Tidal Transition Zone of the Columbia River Delta, northwest U.S.A.

Degree: MS, Department of Earth and Atmospheric Sciences, 2012, University of Alberta

URL: https://era.library.ualberta.ca/files/pc289j891

► The Columbia River Delta, northwest U.S.A., is a complex depositional environment at the mouth of the second largest United States’ river. Through the study of… (more)

Subjects/Keywords: neoichnology; sedimentology; Columbia River; ichnology

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APA (6^th Edition):

Dicks, R. M. (2012). Neoichnology and Sedimentology of the Fluvial-Tidal Transition Zone of the Columbia River Delta, northwest U.S.A. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/pc289j891

Chicago Manual of Style (16^th Edition):

Dicks, Robynn M. “Neoichnology and Sedimentology of the Fluvial-Tidal Transition Zone of the Columbia River Delta, northwest U.S.A.” 2012. Masters Thesis, University of Alberta. Accessed April 12, 2021. https://era.library.ualberta.ca/files/pc289j891.

MLA Handbook (7^th Edition):

Dicks, Robynn M. “Neoichnology and Sedimentology of the Fluvial-Tidal Transition Zone of the Columbia River Delta, northwest U.S.A.” 2012. Web. 12 Apr 2021.

Vancouver:

Dicks RM. Neoichnology and Sedimentology of the Fluvial-Tidal Transition Zone of the Columbia River Delta, northwest U.S.A. [Internet] [Masters thesis]. University of Alberta; 2012. [cited 2021 Apr 12]. Available from: https://era.library.ualberta.ca/files/pc289j891.

Council of Science Editors:

Dicks RM. Neoichnology and Sedimentology of the Fluvial-Tidal Transition Zone of the Columbia River Delta, northwest U.S.A. [Masters Thesis]. University of Alberta; 2012. Available from: https://era.library.ualberta.ca/files/pc289j891

Cornell University

21. Karaca, Ceren. Characterization Of The Union Springs Formation, Finger Lakes Region, Ny: An Integrated High Resolution Facies, Geochemical And Sequence Stratigraphical Approach.

Degree: M.S., Geological Sciences, Geological Sciences, 2012, Cornell University

URL: http://hdl.handle.net/1813/30996

► The Devonian Marcellus "Shale" of the Appalachian Basin is a typical black shale formation with high concentrations of organic matter (maximum Total Organic Carbon, TOC,… (more)

▼ The Devonian Marcellus "Shale" of the Appalachian Basin is a typical black shale formation with high concentrations of organic matter (maximum Total Organic Carbon, TOC, 14%). Early descriptions of black shales, including the Marcellus, emphasized their homogeneity, high organic matter content, very fine particle size and low energy depositional conditions. Mechanisms that lead to organic matter enrichment (i.e. anoxia, production and sedimentation rate) have been a scientific controversy. Recent studies show that these black shales are not homogenous and display a high degree of variability, and show current-induced deposition. Interdependent processes of preservation, production and sedimentation have been agreed upon rather than one or the other. This study attempts to document the heterogeneity of the Union Springs Formation (within the Marcellus Shale) and focuses on determining depositional conditions that resulted in organic matter enrichment. An integrated high-resolution microfacies, geochemistry and sequence stratigraphical approach is followed in order to achieve this goal. Details are documented in 32 samples collected from fresh, unweathered surfaces of an active rock quarry (Seneca Stone Co.) in Seneca Falls, NY. Utilizing a combination of outcrop observations, hand sample descriptions, optical and scanning electron petrography, and TOC, three lithofacies and thirteen microfacies have been identified based on their allochthonous, autochthonous and authigenic components. A geochemical proxy-based approach is followed to predict the bottom water anoxia, distance to detrital source, and biologic productivity. Results show that mechanisms that led to organic enrichment in the Union Springs Formation included the interdependent processes of preservation, production and sedimentation rate. High TOC values, high abundances of redox proxies (Mo, U, V, Cr) and high abundance of framboidal pyrite indicate anoxic to sulphidic bottom waters that lead to preservation of organic matter. Low Si/Al and Ti/Al are indicative of the absence of coarse grain detrital input to the system, which agrees with the petrographical observations. The main agent diluting the organic matter appears to be carbonates (styliolinids, brachiopods, calcisilt grains). During the deposition of the Union Springs Formation, primary biological production was high, as revealed by the prevalence of marine algal cysts in all of the organic-rich microfacies. A high-resolution sequence stratigraphic framework is established for the Union Springs Formation. Small-scale (<50 cm) stratigraphic stacking patterns are recognized based on the microfacies distribution (grain size distribution, shell bed distributions, black shale-carbonate concretion cycles, and diagenetic components). Based on the sequence stratigraphy, first deepening then shallowing base level is interpreted. The Union Springs Formation constitutes an interval of Transgressive Systems Tract and Highstand Systems. This interpretation agrees with the sequence stratigraphic models of the… Advisors/Committee Members: Jordan, Teresa Eileen (chair), Allmendinger, Richard Waldron (committee member).

Subjects/Keywords: Marcellus Shale; Sedimentology; Microfacies

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APA (6^th Edition):

Karaca, C. (2012). Characterization Of The Union Springs Formation, Finger Lakes Region, Ny: An Integrated High Resolution Facies, Geochemical And Sequence Stratigraphical Approach. (Masters Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/30996

Chicago Manual of Style (16^th Edition):

Karaca, Ceren. “Characterization Of The Union Springs Formation, Finger Lakes Region, Ny: An Integrated High Resolution Facies, Geochemical And Sequence Stratigraphical Approach.” 2012. Masters Thesis, Cornell University. Accessed April 12, 2021. http://hdl.handle.net/1813/30996.

MLA Handbook (7^th Edition):

Karaca, Ceren. “Characterization Of The Union Springs Formation, Finger Lakes Region, Ny: An Integrated High Resolution Facies, Geochemical And Sequence Stratigraphical Approach.” 2012. Web. 12 Apr 2021.

Vancouver:

Karaca C. Characterization Of The Union Springs Formation, Finger Lakes Region, Ny: An Integrated High Resolution Facies, Geochemical And Sequence Stratigraphical Approach. [Internet] [Masters thesis]. Cornell University; 2012. [cited 2021 Apr 12]. Available from: http://hdl.handle.net/1813/30996.

Council of Science Editors:

Karaca C. Characterization Of The Union Springs Formation, Finger Lakes Region, Ny: An Integrated High Resolution Facies, Geochemical And Sequence Stratigraphical Approach. [Masters Thesis]. Cornell University; 2012. Available from: http://hdl.handle.net/1813/30996

Texas A&M University

22. Perez Teran, Isaac Antonio. Stratal architecture and sedimentology of a portion of the Upper Cambrian Hickory Sandstone, central Texas, U.S.A.

Degree: MS, Geology, 2009, Texas A&M University

URL: http://hdl.handle.net/1969.1/ETD-TAMU-1522

► Fluvial and coastal depositional environments may have been quite different before the development of land plants in the late Silurian. Rapid drainage of terrestrial surfaces,… (more)

▼ Fluvial and coastal depositional environments may have been quite different before the development of land plants in the late Silurian. Rapid drainage of terrestrial surfaces, flashy rivers with poorly stabilized banks, coarse sediment loads supplied to coasts from landscapes dominated by physical weathering, and the prevalence of epicontinental seas are expected to have altered depositional patterns and associated preserved Facies. Quarries in the Upper Cambrian Hickory Sandstone located in central Texas provide an exceptional opportunity to examine the sedimentology of deposits of this age in order to interpret sedimentary environments. During quarrying, vertical walls, one half-kilometer long and several tens of meters high, are blasted back a few tens of meters at a time and then the rubble excavated, exposing successive outcrops in walls that are perpendicular to the regional paleocurrent direction. The deposits are characterized by sheet-like bedsets dominated by unidirectional cross-stratified sandstones interpreted to have formed in coastal areas fed by bedload dominated rivers. Thinner heterolithic and clay beds locally separating cross-stratified bedsets are commonly bioturbated by marine organisms. Presence of tidal features, such as abundant mud drapes, concave-upward cross-stratification and sparse herringbone cross-stratification, also suggests marine influence during deposition. Detailed mapping of stratal geometry and Facies across these exposures shows a complex internal architecture that can be interpreted in terms of growth and superposition of bars within shallow fluvial channels and adjacent shallow marine areas along the coast. Detailed 3D reconstruction of bars and channels reveals a range of processes including growth, coalescence, and erosion of bars during channel migration, switching and filling of channel segments, and mouth bar growth as channelised flows decelerated seaward. Sedimentary Facies, stratal geometry and ichnofossils suggest that these deposits were formed in a braid-delta system fed by lowsinuosity bedload-dominated rivers. Basinal processes were controlled by the shallow epicontinental sea, dissipating wave action and strengthening tidal currents. Advisors/Committee Members: Bouma, Arnold (advisor), Willis, Brian J (advisor), Ayers, Walter (committee member).

Subjects/Keywords: Sedimentology; Hickory

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APA (6^th Edition):

Perez Teran, I. A. (2009). Stratal architecture and sedimentology of a portion of the Upper Cambrian Hickory Sandstone, central Texas, U.S.A. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1522

Chicago Manual of Style (16^th Edition):

Perez Teran, Isaac Antonio. “Stratal architecture and sedimentology of a portion of the Upper Cambrian Hickory Sandstone, central Texas, U.S.A.” 2009. Masters Thesis, Texas A&M University. Accessed April 12, 2021. http://hdl.handle.net/1969.1/ETD-TAMU-1522.

MLA Handbook (7^th Edition):

Perez Teran, Isaac Antonio. “Stratal architecture and sedimentology of a portion of the Upper Cambrian Hickory Sandstone, central Texas, U.S.A.” 2009. Web. 12 Apr 2021.

Vancouver:

Perez Teran IA. Stratal architecture and sedimentology of a portion of the Upper Cambrian Hickory Sandstone, central Texas, U.S.A. [Internet] [Masters thesis]. Texas A&M University; 2009. [cited 2021 Apr 12]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1522.

Council of Science Editors:

Perez Teran IA. Stratal architecture and sedimentology of a portion of the Upper Cambrian Hickory Sandstone, central Texas, U.S.A. [Masters Thesis]. Texas A&M University; 2009. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1522

Texas A&M University

23. Gong, Jian. Formation of Physical Sedimentary Structure in the Presence of Microbial Communities.

Degree: PhD, Geology, 2015, Texas A&M University

URL: http://hdl.handle.net/1969.1/156492

► Microbial life has been fundamental in the evolution of the Earth throughout geologic time. Although insignificant as individuals, collectively as communities microorganisms impact sedimentary environments… (more)

▼ Microbial life has been fundamental in the evolution of the Earth throughout geologic time. Although insignificant as individuals, collectively as communities microorganisms impact sedimentary environments by producing physically resilient structures. Many of these sedimentary structures, when understood in specific contexts, may serve as unique records for ancient life. Conical mats are some of the most distinctive fossil microbial communities in the geologic record. However, much is debated about how they form. We here show with experimental evidence that cones constructed by Leptolyngbya sp. occurs by repeated aggregation of mobile filaments likely coordinated by physical contact. Cone-forming cultures also rolled underlying sand grains into small piles beneath each biological cone. Repeated rolling over multiple day/night cycles gradually sorted sand into regularly spaced coarse piles with finer-grained lags in between. Significantly, statistically identical sorting patterns were discovered in 3.22-billion-year-old fossil conical mats that grew in sandy tidal environments of the Moodies Group, South Africa. These results demonstrate that group movement coordinated by touch-sensing systems could have structured populations of filamentous, photosynthetic microorganisms since at least the Paleoarchean. Microbial streamers are surface-attached microbial communities that paradoxically seem to roughen mats under rapid, high shear flows, potentially exposing the community to greater risk of erosion. They are common structures found in fast flow environments yet the mechanism of their formation and effects on mat erosion are poorly understood. We here show evidence that streamers are initiated by shear-induced viscoplastic deformation, and they locally re-attach boundary layers and therefore smooth rough bedding surfaces hydraulically, reducing shear experienced by near-surface mat communities. These results suggest a novel set of feedbacks that could reduce net mat erosion in energetic flows, and could help guide the evaluation of biosignatures in sedimentary rocks deposited in the presence of microbial mats. The presence of microbial communities have long been suggested to cause the increase of sediment cohesive strength, which is responsible for forming a wide range of microbial-sedimentary structures. Step-wise increase of mat strength towards the end of Archean has been documented, but it is uncertain what caused this change. We here suggest that the mechanical strength of mats increased as a direct product of the metabolic switch from an anoxygenic to oxygenic benthic microbial ecosystem. Support for this hypothesis is provided by examining the strength of experimental mats with productivity limited by various nutrients. In addition, we also expand the record of estimated mat strength beyond the Archean eon. These results add to a growing body of evidence how one single metabolic innovation – oxygenic photosynthesis forever altered the face of our planet. Advisors/Committee Members: Tice, Michael M (advisor), Olszewski, Thomas D (committee member), Pope, Michael C (committee member), Socolofsky, Scott A (committee member), Thornton, Daniel Conrad O (committee member).

Subjects/Keywords: Sedimentology; Microbial Communities; Geobiology

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APA (6^th Edition):

Gong, J. (2015). Formation of Physical Sedimentary Structure in the Presence of Microbial Communities. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/156492

Chicago Manual of Style (16^th Edition):

Gong, Jian. “Formation of Physical Sedimentary Structure in the Presence of Microbial Communities.” 2015. Doctoral Dissertation, Texas A&M University. Accessed April 12, 2021. http://hdl.handle.net/1969.1/156492.

MLA Handbook (7^th Edition):

Gong, Jian. “Formation of Physical Sedimentary Structure in the Presence of Microbial Communities.” 2015. Web. 12 Apr 2021.

Vancouver:

Gong J. Formation of Physical Sedimentary Structure in the Presence of Microbial Communities. [Internet] [Doctoral dissertation]. Texas A&M University; 2015. [cited 2021 Apr 12]. Available from: http://hdl.handle.net/1969.1/156492.

Council of Science Editors:

Gong J. Formation of Physical Sedimentary Structure in the Presence of Microbial Communities. [Doctoral Dissertation]. Texas A&M University; 2015. Available from: http://hdl.handle.net/1969.1/156492

McMaster University

24. Feist, Samantha K. Investigation of sediment pathways in Hidden River Cave, Kentucky.

Degree: MSc, 2017, McMaster University

URL: http://hdl.handle.net/11375/22144

►

Karstic cave systems are intricately related to surficial processes and the study of cave sediments is a growing field of research. Sediment deposits in caves… (more)

▼

Karstic cave systems are intricately related to surficial processes and the study of cave sediments is a growing field of research. Sediment deposits in caves are protected from surficial weathering processes, and are therefore often preserved. Cave sediments have applications in studies for paleoclimatic reconstruction, contaminant transport, and paleoflood and stream incision rates, making them valuable contributors to other areas of geoscience. Hidden River Cave is an active, multi-level cave system in the town of Horse Cave, Kentucky with over 33 km of mapped passages. A history of anthropogenic impacts on the cave system include uses for hydroelectric power generation, a water source, and a show cave until it closed in 1943 due to severe contamination from domestic and industrial waste. This study reports on the analysis of sediment cores collected from the cave system which show distinct concentrations of metals within the sediment from chrome plating plant effluent. Relative concentrations of metals in the core record were obtained using an ITRAX core scanner, and were observed to decrease moving downstream from the chrome plating plant contamination source. Sediment core analysis allows depositional patterns in the cave system to be observed and related to historic surficial processes. The chronology of sedimentation events was determined using Pb-210 analysis of core sediment and indicates a strong connection between historical contaminating events in the town of Horse Cave and cave sediment deposition. Sediment core analysis has thus allowed depositional patterns in the cave system to be determined and related to historic surficial processes. These findings can be applied to enhance understanding of the combined effects of landscape evolution and anthropogenic impacts which may be used to inform decision making processes for communities overlying both Hidden River Cave and other karstic cave systems.

Thesis

Master of Science (MSc)

Advisors/Committee Members: Maclachlan, John C., Eyles, Carolyn H., Earth Sciences.

Subjects/Keywords: Sedimentology; Karst; Caves; Kentucky

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APA (6^th Edition):

Feist, S. K. (2017). Investigation of sediment pathways in Hidden River Cave, Kentucky. (Masters Thesis). McMaster University. Retrieved from http://hdl.handle.net/11375/22144

Chicago Manual of Style (16^th Edition):

Feist, Samantha K. “Investigation of sediment pathways in Hidden River Cave, Kentucky.” 2017. Masters Thesis, McMaster University. Accessed April 12, 2021. http://hdl.handle.net/11375/22144.

MLA Handbook (7^th Edition):

Feist, Samantha K. “Investigation of sediment pathways in Hidden River Cave, Kentucky.” 2017. Web. 12 Apr 2021.

Vancouver:

Feist SK. Investigation of sediment pathways in Hidden River Cave, Kentucky. [Internet] [Masters thesis]. McMaster University; 2017. [cited 2021 Apr 12]. Available from: http://hdl.handle.net/11375/22144.

Council of Science Editors:

Feist SK. Investigation of sediment pathways in Hidden River Cave, Kentucky. [Masters Thesis]. McMaster University; 2017. Available from: http://hdl.handle.net/11375/22144

Penn State University

25. Comer, Emily Elizabeth. DEPOSITIONAL ENVIRONMENTS OF PALEOCENE PLANT LOCALITIES WITHIN ESTUARINE FACIES OF THE SALAMANCA FORMATION, CHUBUT PROVINCE, ARGENTINA .

Degree: 2011, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/12445

► The most well preserved and diverse early Paleocene macrofloras from Gondwana occur within sediments from Chubut Province, Patagonia, Argentina. Two prolific sites of fossil preservation,… (more)

▼ The most well preserved and diverse early Paleocene macrofloras from Gondwana occur within sediments from Chubut Province, Patagonia, Argentina. Two prolific sites of fossil preservation, Palacio de los Loros and Parque Provincial Ormachea, sit near the top of the southwestern outcrops of the Danian (65.5-61.7 Ma) Salamanca Formation. Resting just above an unconformity spanning the K-T boundary, the Salamanca Fm. provides evidence of plant recovery after the extinction event and the depositional environments in which these floras existed. This thesis provides a sedimentological description and paleoenvironmental interpretation of the Salamanca and Banco Negro Inferior Fms. in their southwestern outcrops and places macroflora fossil localities in stratigraphic context. The Salamanca Fm. in the area 25-40 km south of Sarmiento, Argentina consists of ten facies and four facies associations representing a transgression onto continental Cretaceous facies followed by regression and infilling of marine, tidal facies. Lower sections of the Salamanca Fm. contain abundant glauconite and fossils characteristic of an open marine shelf environment. These facies transition upward to bi-directional trough cross-bedded sands interspersed with flaser-bedded sandy silts. Cross beds indicate meso-tidal currents with paleocurrent directions that cluster in the NW-SW quadrants. The uppermost unit of the Salamanca Fm. is composed of sands and silts that gradationally transition to dark muds of the Banco Negro Inferior (BNI) Fm. These silts and muds are interpreted as a series of stacked gleysols and vertisols consisting of montmorillonite, illite, glauconitic, and halloysite clay phases deposited through progradation of a widespread inland swamp. High aluminum content is the cause of dark coloration within the BNI Fm. Plant localities at PL and OR occur at two stratigraphic levels within the upper Salamanca Fm. and represent accumulation in five types of sedimentary deposits- silty beds of accretion sets, transported silt lenses, mud drapes, tidal flats, and muddy deposits along low-energy tidal channels. These sedimentary deposits signify two stages of estuary infilling and the progradation of a widespread, coastal swamp represented by the Banco Negro Inferior Fm. Two-dimensional hydrodynamic modeling of tidal currents and ranges in the proto-San Jorge embayment produce tidal amplitudes of 1-3.5 m, consistent with the hypothesis that the Salamanca Fm. was deposited in an open estuary that amplified Paleocene microtidal Atlantic tides to meso-tidal range. Advisors/Committee Members: Rudy Slingerland, Thesis Advisor/Co-Advisor, Rudy Slingerland, Thesis Advisor/Co-Advisor.

Subjects/Keywords: sedimentology; depositional environments; paleobotany

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APA (6^th Edition):

Comer, E. E. (2011). DEPOSITIONAL ENVIRONMENTS OF PALEOCENE PLANT LOCALITIES WITHIN ESTUARINE FACIES OF THE SALAMANCA FORMATION, CHUBUT PROVINCE, ARGENTINA . (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/12445

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Comer, Emily Elizabeth. “DEPOSITIONAL ENVIRONMENTS OF PALEOCENE PLANT LOCALITIES WITHIN ESTUARINE FACIES OF THE SALAMANCA FORMATION, CHUBUT PROVINCE, ARGENTINA .” 2011. Thesis, Penn State University. Accessed April 12, 2021. https://submit-etda.libraries.psu.edu/catalog/12445.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Comer, Emily Elizabeth. “DEPOSITIONAL ENVIRONMENTS OF PALEOCENE PLANT LOCALITIES WITHIN ESTUARINE FACIES OF THE SALAMANCA FORMATION, CHUBUT PROVINCE, ARGENTINA .” 2011. Web. 12 Apr 2021.

Vancouver:

Comer EE. DEPOSITIONAL ENVIRONMENTS OF PALEOCENE PLANT LOCALITIES WITHIN ESTUARINE FACIES OF THE SALAMANCA FORMATION, CHUBUT PROVINCE, ARGENTINA . [Internet] [Thesis]. Penn State University; 2011. [cited 2021 Apr 12]. Available from: https://submit-etda.libraries.psu.edu/catalog/12445.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Comer EE. DEPOSITIONAL ENVIRONMENTS OF PALEOCENE PLANT LOCALITIES WITHIN ESTUARINE FACIES OF THE SALAMANCA FORMATION, CHUBUT PROVINCE, ARGENTINA . [Thesis]. Penn State University; 2011. Available from: https://submit-etda.libraries.psu.edu/catalog/12445

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Queens University

26. Rouse, Jordan. The Provenance and Geochemical Alteration of Bermudan Eolianites .

Degree: Geological Sciences and Geological Engineering, 2016, Queens University

URL: http://hdl.handle.net/1974/15036

► Large calcareous eolianites cover the remote island of Bermuda, accounting for more than 90% of the limestone bedrock. This study examines the sedimentology and geochemistry… (more)

▼ Large calcareous eolianites cover the remote island of Bermuda, accounting for more than 90% of the limestone bedrock. This study examines the sedimentology and geochemistry of these eolianites to better understand Pleistocene oceanography and the meteoric alteration of subtropical carbonate sediments. Cluster analyses reveal that the eolian carbonate sediments fall into two natural groups that represent lagoonal and reefal end members of marine sediment production. Coral fragments are uncharacteristically absent, possibly destroyed prior to their incorporation into eolian deposits by endolithic microboring organisms or broken up during transport. Sediment assemblages lead to the following interpretations of the Bermudan offshore environment: (1) the Ledge Flats reef system along the southwestern coast has been active since MIS 11, contributing coralline algal-rich sediment to the northern beaches of Sandy’s Parish and acting as an energy barrier in the south, allowing for low energy sedimentation in the quiet back- reef region; (2) on the northeastern coast, the low energy back-reef region landward of the Ledge Flats has thrived since MIS 11; (3) during MIS 5e, slightly warmer water temperatures led to the hindrance of coralline algal growth along the southern coast and in the North Lagoon. These are the first interpretations of Pleistocene marine assemblages on Bermuda. Meteoric fluids progressively transformed the pristine carbonate sediments into hardened limestones in a predictable solubility-dependent manner. The progressive alteration is coincident with: (1) divergence of δ18O and δ13C values from those similar to unaltered sediment towards those of calcrete, due to interaction with CO2-charged meteoric fluids; (2) depletion of elements with low partitioning coefficients and low meteoric concentrations, such as barium, boron, magnesium, potassium, sodium, strontium, and uranium; (3) enrichment of iron from Terra Rossa-hosted iron oxides; (4) enrichment of aluminum via detrital minerals sourced from protosol horizons; and (5) manganese concentrations that remain uncharacteristically low, owing to the lack of a consistent manganese source. Elemental correlations are useful for characterizing meteoric diagenesis, assuming the primary mineralogy is recognized, all components have been fully altered, and inter-particle cements are ubiquitous.

Subjects/Keywords: Carbonate Sedimentology ; Bermuda ; Eolianites ; Geochemistry

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Rouse, J. (2016). The Provenance and Geochemical Alteration of Bermudan Eolianites . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/15036

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Rouse, Jordan. “The Provenance and Geochemical Alteration of Bermudan Eolianites .” 2016. Thesis, Queens University. Accessed April 12, 2021. http://hdl.handle.net/1974/15036.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Rouse, Jordan. “The Provenance and Geochemical Alteration of Bermudan Eolianites .” 2016. Web. 12 Apr 2021.

Vancouver:

Rouse J. The Provenance and Geochemical Alteration of Bermudan Eolianites . [Internet] [Thesis]. Queens University; 2016. [cited 2021 Apr 12]. Available from: http://hdl.handle.net/1974/15036.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Rouse J. The Provenance and Geochemical Alteration of Bermudan Eolianites . [Thesis]. Queens University; 2016. Available from: http://hdl.handle.net/1974/15036

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Queens University

27. Matheson, Edward James. Origin and Significance of Middle Ordovician and Mississippian Calcarenites .

Degree: Geological Sciences and Geological Engineering, 2014, Queens University

URL: http://hdl.handle.net/1974/12630

► Calcarenites are common throughout geologic history, but the range of depositional settings and conditions under which they form is poorly constrained. This study compares physically… (more)

▼ Calcarenites are common throughout geologic history, but the range of depositional settings and conditions under which they form is poorly constrained. This study compares physically structured calcarenites in the Mississippian of the Western Canada Sedimentary Basin, and the Ordovician of the northern Appalachian Basin. Calcarenites in these successions are used to reconstruct paleo-environments and postulate sequence-stratigraphic subdivisions. Mississippian sediments in the Western Canada Sedimentary Basin were deposited on a sub-thermocline mid to outer ramp where wave action predominated, producing oscillatory and combined-flow sedimentary structures. It is interpreted that occasional storm-generated currents produced offshore-migrating dunes. Cyclonic storms appear to have been rare due to the low latitude and west-coast location of the study area. Swell waves were instead more common, reworking sediment across the mid ramp. Comparatively, carbonate sands in the Ordovician Chazy Group are interpreted to have been deposited as a tropical transgressive system with contemporaneous siliciclastic and carbonate sedimentation. A mixed-lithology barrier-island system is interpreted to have migrated landward as relative sea level rose. Low-energy siliciclastic and carbonate sediments accumulated in the back-barrier lagoon and carbonate dune fields formed seaward of the barrier islands, covering lagoonal deposits along a wave ravinement surface. It is interpreted that the subaqueous dunes developed between storm and fair-weather wave bases due to residual tidal currents that were likely amplified by a regional funnel-shaped embayment and local bathymetric constrictions. As flooding continued, mixed wave and tidal, open-marine carbonates buried the subaqueous dune fields. Broader-scale implications can be drawn from both successions. Mississippian calcarenites suggest that swaley cross-stratification can form down to storm (or swell) wave base on carbonate platforms, and is not restricted to the shoreface as it is in siliciclastics. Furthermore, the deposits suggest that swell-wave deposits are also more likely to be produced in carbonate deposits because of in situ grain production. The Ordovician calcarenites are strikingly similar to those along transgressive, wave-dominated, siliciclastic shorelines, suggesting that barrier-island complexes and associated transgressive sand sheets could be an under-appreciated origin for other carbonate sands.

Subjects/Keywords: carbonates ; siliciclastics ; geology ; sedimentology

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Matheson, E. J. (2014). Origin and Significance of Middle Ordovician and Mississippian Calcarenites . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/12630

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Matheson, Edward James. “Origin and Significance of Middle Ordovician and Mississippian Calcarenites .” 2014. Thesis, Queens University. Accessed April 12, 2021. http://hdl.handle.net/1974/12630.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Matheson, Edward James. “Origin and Significance of Middle Ordovician and Mississippian Calcarenites .” 2014. Web. 12 Apr 2021.

Vancouver:

Matheson EJ. Origin and Significance of Middle Ordovician and Mississippian Calcarenites . [Internet] [Thesis]. Queens University; 2014. [cited 2021 Apr 12]. Available from: http://hdl.handle.net/1974/12630.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Matheson EJ. Origin and Significance of Middle Ordovician and Mississippian Calcarenites . [Thesis]. Queens University; 2014. Available from: http://hdl.handle.net/1974/12630

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

North Carolina State University

28. Brennan, Matthew Philip. Geology and depositional environment of strata in the vicinity of Jacob's Creek Quarry, Denton, NC: Implications for the stratigraphy and age of the Albemarle Group.

Degree: MS, Marine, Earth and Atmospheric Sciences, 2009, North Carolina State University

URL: http://www.lib.ncsu.edu/resolver/1840.16/84

► The Albemarle Group is one of the major defining stratigraphic units of the Carolina terrane, the best-known division of the southern Appalachian peri-Gondwanan block of… (more)

▼ The Albemarle Group is one of the major defining stratigraphic units of the Carolina terrane, the best-known division of the southern Appalachian peri-Gondwanan block of Carolinia. As such, the group has been recognized as important for correlating Carolinia with other peri-Gondwanan Appalachian blocks. Until recently, it had been considered a conformable sequence of mainly Late Neoproterozoic age; however, this age assignment has been in question due to reports of Paleozoic (Late Cambrian and younger) fossils from two quarries in the group. To accommodate the reported fossil finds, significant revisions to the stratigraphy and structure of the group were proposed. This study focused on resolving the stratigraphy and structure of the group in the vicinity of JacobÃ¢â‚¬â„¢s Creek Quarry, one of the reported Paleozoic fossil locations. Measurement of a 20-meter stratigraphic section across the Cid mudstone and Flat Swamp member contact, recently proposed as a regionally significant thrust, identified an intercalation of mudstone, greywacke, epiclastics and tuffaceous siltstone indicative of a conformable and gradational contact. No significant tectonic structures, other than a weak regional cleavage that is observed throughout the study area, were observed. Facies associations also suggest that the Cid and Floyd Church Formations form part of a conformable, coarsening upward sequence. In addition, field and facies evidence did not reveal evidence of Paleozoic outliers. Therefore, the rocks in the vicinity of JacobÃ¢â‚¬â„¢s Creek Quarry are considered Neoproterozoic and changes to our understanding of the stratigraphy and structure of the Albemarle Group are unwarranted. A secondary objective of this investigation was to compile in digital geospatial format, geological field maps produced by previous graduate students from North Carolina State University that are contiguous to the area studied herein. This was done by direct digitization of paper maps produced as part of unpublished theses. The product is a geological map of contiguous portions of the Morrow Mountain, Badin and Handy quadrangles. Advisors/Committee Members: Dr. James P. HIbbard, Committee Chair (advisor), Dr. Helena Mitasova, Committee Member (advisor), Dr. Ron Fodor, Committee Member (advisor).

Subjects/Keywords: Geology; Sedimentology; Albemarle Group

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APA (6^th Edition):

Brennan, M. P. (2009). Geology and depositional environment of strata in the vicinity of Jacob's Creek Quarry, Denton, NC: Implications for the stratigraphy and age of the Albemarle Group. (Thesis). North Carolina State University. Retrieved from http://www.lib.ncsu.edu/resolver/1840.16/84

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Brennan, Matthew Philip. “Geology and depositional environment of strata in the vicinity of Jacob's Creek Quarry, Denton, NC: Implications for the stratigraphy and age of the Albemarle Group.” 2009. Thesis, North Carolina State University. Accessed April 12, 2021. http://www.lib.ncsu.edu/resolver/1840.16/84.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Brennan, Matthew Philip. “Geology and depositional environment of strata in the vicinity of Jacob's Creek Quarry, Denton, NC: Implications for the stratigraphy and age of the Albemarle Group.” 2009. Web. 12 Apr 2021.

Vancouver:

Brennan MP. Geology and depositional environment of strata in the vicinity of Jacob's Creek Quarry, Denton, NC: Implications for the stratigraphy and age of the Albemarle Group. [Internet] [Thesis]. North Carolina State University; 2009. [cited 2021 Apr 12]. Available from: http://www.lib.ncsu.edu/resolver/1840.16/84.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Brennan MP. Geology and depositional environment of strata in the vicinity of Jacob's Creek Quarry, Denton, NC: Implications for the stratigraphy and age of the Albemarle Group. [Thesis]. North Carolina State University; 2009. Available from: http://www.lib.ncsu.edu/resolver/1840.16/84

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Nelson Mandela Metropolitan University

29. Linol, Bastien. Sedimentology and sequence stratigraphy of the Congo and Kalahari basins of South Central Africa and their evolution during the formation and break-up of West Gondwana.

Degree: Faculty of Science, 2013, Nelson Mandela Metropolitan University

URL: http://hdl.handle.net/10948/d1012148

► The high elevated (ca. 1100 m) continental Kalahari Basin (KB) of southern Africa and the linked lower lying (ca. 400 m) Congo Basin (CB) of… (more)

▼ The high elevated (ca. 1100 m) continental Kalahari Basin (KB) of southern Africa and the linked lower lying (ca. 400 m) Congo Basin (CB) of central Africa preserve in their interiors extensive sedimentary rock sequences and sediments that represent a unique record of the Phanerozoic geodynamic and climatic evolution of sub-Saharan Africa. In this thesis, field observations and new borehole data from the Democratic Republic of Congo (DRC) and Botswana are integrated with new paleontology and geochronology to present a substantially revised stratigraphy for the CB, and south-central Africa in general. This work also introduces a new multiphase model for the subsidence and uplift history of the CB, and improves correlations with the Cape-Karoo Basin (CKB) of South Africa and the Paraná Basin (PB) of south-east Brazil. Four deep boreholes, each between 2 and 4.5 km deep, drilled in the centre of the CB in the 1950’s and 1970’s are re-examined together with the colonial literature (in French) and available seismic data. This stratigraphic and basin analysis is complemented with new U-Pb dates of detrital zircons from core-samples of two of the boreholes (Samba and Dekese), as well as from samples collected during field work in the Kwango region of the south-west DRC. This work, for the first time, constrains the maximum ages and source provenances of the successions in the CB. Following the Pan African orogens (ca. 650-530 Ma), extensive sequences of red beds were deposited by regional paleocurrents to the south. These are now best preserved (1 km thick) along the West Congo, Oubanguides, and Lufilian Belts surrounding the CB. Overlying a hiatus that represents most of the early-Paleozoic, is a 1 to 3 km thick succession of easterly derived glacial, and then continental sequences of the Karoo Supergroup. This succession records the first main episode of subsidence [10-15 m/Ma], interrupted by a phase of uplift that is likely related to far-field intracontinental deformation within Gondwana supercontinent during the Variscan and Cape Fold orogenies (ca. 250-330 Ma) at its peripheries. Detrital zircons from the lower Karoo diamictites are dated at 1.85-2.05 Ga and 1.37- 1.42 Ga, and thus sourced from Paleoproterozoic (Eburnean) and mid-Mesoproterozoic (Kibaran type-I) basement rocks in Uganda and Tanzania. Zircons from all the other successions in the CB date predominantly at 950-1050 Ma and 500-800 Ma. These are derived from sediment recycling of late-Mesoproterozoic (Kibaran type-II) and late- Neoproterozoic (Pan African) sources in the Central African Republic (CAR) and Chad. A distinct unconformity across the Karoo Supergroup in the CB is overlain by 500- 1000 m Jurassic-Cretaceous sequences, here named the Congo Supergroup. During initial rapid subsidence [10-50 m/Ma], late-Jurassic (Kimmeridgian) shallow marine to continental sedimentation attests to a short transgression of proto-Indian Ocean waters into the northern CB (at 160 m above present day sea-level), succeeded by widespread deposition of aeolian dunes that…

Subjects/Keywords: Sedimentary basins – Africa; Sedimentology

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Linol, B. (2013). Sedimentology and sequence stratigraphy of the Congo and Kalahari basins of South Central Africa and their evolution during the formation and break-up of West Gondwana. (Thesis). Nelson Mandela Metropolitan University. Retrieved from http://hdl.handle.net/10948/d1012148

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Linol, Bastien. “Sedimentology and sequence stratigraphy of the Congo and Kalahari basins of South Central Africa and their evolution during the formation and break-up of West Gondwana.” 2013. Thesis, Nelson Mandela Metropolitan University. Accessed April 12, 2021. http://hdl.handle.net/10948/d1012148.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Linol, Bastien. “Sedimentology and sequence stratigraphy of the Congo and Kalahari basins of South Central Africa and their evolution during the formation and break-up of West Gondwana.” 2013. Web. 12 Apr 2021.

Vancouver:

Linol B. Sedimentology and sequence stratigraphy of the Congo and Kalahari basins of South Central Africa and their evolution during the formation and break-up of West Gondwana. [Internet] [Thesis]. Nelson Mandela Metropolitan University; 2013. [cited 2021 Apr 12]. Available from: http://hdl.handle.net/10948/d1012148.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Linol B. Sedimentology and sequence stratigraphy of the Congo and Kalahari basins of South Central Africa and their evolution during the formation and break-up of West Gondwana. [Thesis]. Nelson Mandela Metropolitan University; 2013. Available from: http://hdl.handle.net/10948/d1012148

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

College of William and Mary

30. Farrell, Kathleen M. Late Pleistocene stratigraphy and morphology of the lower Northern Neck, Virginia.

Degree: MA, Virginia Institute of Marine Science, 1979, College of William and Mary

URL: https://scholarworks.wm.edu/etd/1539617491

Subjects/Keywords: Geomorphology; Sedimentology

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Farrell, K. M. (1979). Late Pleistocene stratigraphy and morphology of the lower Northern Neck, Virginia. (Masters Thesis). College of William and Mary. Retrieved from https://scholarworks.wm.edu/etd/1539617491

Chicago Manual of Style (16^th Edition):

Farrell, Kathleen M. “Late Pleistocene stratigraphy and morphology of the lower Northern Neck, Virginia.” 1979. Masters Thesis, College of William and Mary. Accessed April 12, 2021. https://scholarworks.wm.edu/etd/1539617491.

MLA Handbook (7^th Edition):

Farrell, Kathleen M. “Late Pleistocene stratigraphy and morphology of the lower Northern Neck, Virginia.” 1979. Web. 12 Apr 2021.

Vancouver:

Farrell KM. Late Pleistocene stratigraphy and morphology of the lower Northern Neck, Virginia. [Internet] [Masters thesis]. College of William and Mary; 1979. [cited 2021 Apr 12]. Available from: https://scholarworks.wm.edu/etd/1539617491.

Council of Science Editors:

Farrell KM. Late Pleistocene stratigraphy and morphology of the lower Northern Neck, Virginia. [Masters Thesis]. College of William and Mary; 1979. Available from: https://scholarworks.wm.edu/etd/1539617491

Open Access Theses and Dissertations