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You searched for subject:(Huronian). Showing records 1 – 3 of 3 total matches.

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1. Howe, Timothy S. Investigating potential climatic cycles in glacially-influenced rhythmites of the upper Gowganda Formation using geochemical, sedimentological and spectral analyses.

Degree: 2015, University of Western Ontario

URL: https://ir.lib.uwo.ca/etd/3264 

The upper Gowganda Formation of the Huronian Supergroup contains glacially-induced, varve-like rhythmites composed of turbiditic micro-laminae that potentially preserve a detailed record of climatic conditions during the Paleoproterozoic Era. A sedimentological analysis of upper Gowganda Formation deposits enabled identification of eight lithofacies comprising a glaciogenic depositional environment: 1) diamictite, 2) contorted argillite, 3) interlaminated siltstone and sandstone, 4) interbedded siltstone and claystone, 5) sandstone, 6) siltstone, 7) interbedded coarse-grained and fine-grained siltstone, and 8) wavy argillite. Major, trace, and rare earth element analyses indicate that the rhythmites have undergone limited recycling and chemical alteration. Whole-rock δ18O values are consistent with an Archean gneiss provenance and support that chemical weathering and diagenesis were insignificant. Spectral analysis of four rhythmic couplet thickness records using the MTM Toolkit of Mann and Lees (1996) supports the hypothesis of annual deposition for the rhythmites.

Subjects/Keywords: Paleoproterozoic; Huronian; glaciation; rhythmites; varves; micro-laminae; Geology

…103 vii List of Figures Figure 2-1: Distribution of the Huronian Supergroup in Ontario… …Canada. The Huronian Supergroup comprises the eastern section of the Southern Province, and is… …12 Figure 2-2: Generalized stratigraphic section of the Huronian Supergroup. Conglomerate… …The rhythmite sequences in the Paleoproterozoic upper Gowganda Formation of the Huronian… …continental shelf. 11 2 Geological Setting 2.1 The Huronian Supergroup The Huronian Supergroup… 

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

APA (6th Edition):

Howe, T. S. (2015). Investigating potential climatic cycles in glacially-influenced rhythmites of the upper Gowganda Formation using geochemical, sedimentological and spectral analyses. (Thesis). University of Western Ontario. Retrieved from https://ir.lib.uwo.ca/etd/3264

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

Chicago Manual of Style (16th Edition):

Howe, Timothy S. “Investigating potential climatic cycles in glacially-influenced rhythmites of the upper Gowganda Formation using geochemical, sedimentological and spectral analyses.” 2015. Thesis, University of Western Ontario. Accessed April 12, 2021. https://ir.lib.uwo.ca/etd/3264.

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

MLA Handbook (7th Edition):

Howe, Timothy S. “Investigating potential climatic cycles in glacially-influenced rhythmites of the upper Gowganda Formation using geochemical, sedimentological and spectral analyses.” 2015. Web. 12 Apr 2021.

Vancouver:

Howe TS. Investigating potential climatic cycles in glacially-influenced rhythmites of the upper Gowganda Formation using geochemical, sedimentological and spectral analyses. [Internet] [Thesis]. University of Western Ontario; 2015. [cited 2021 Apr 12]. Available from: https://ir.lib.uwo.ca/etd/3264.

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

Council of Science Editors:

Howe TS. Investigating potential climatic cycles in glacially-influenced rhythmites of the upper Gowganda Formation using geochemical, sedimentological and spectral analyses. [Thesis]. University of Western Ontario; 2015. Available from: https://ir.lib.uwo.ca/etd/3264

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


University of Western Ontario

2. Al-Hashim, Mansour H. Sedimentology and geochemistry of the mixed carbonate-siliciclastic Espanola Formation, Paleoproterozoic Huronian Supergroup, Bruce Mines-Elliot Lake Area, Ontario, Canada.

Degree: 2016, University of Western Ontario

URL: https://ir.lib.uwo.ca/etd/4350 

The Espanola Formation of the Paleoproterozoic Huronian Supergroup is a mixed carbonate-siliciclastic succession. Detailed sedimentological analysis of the formation in the Bruce Mines-Elliot Lake region reveals 17 sedimentary lithofacies, which comprise three distinct lithofacies associations. The lithofacies associations represent, in ascending order, shoreface, offshore, and nearshore (or lagoon) depositional environments along a wave- and storm-dominated shallow siliciclastic marine shelf. Major, trace, and rare earth element analyses of the siliciclastic component indicate derivation from a mainly granodioritic Archean upper continental crust with some contributions from mafic volcanic and/or sedimentary rocks. The results show that the source rocks were subjected to relatively low to moderate chemical weathering conditions. Stable isotope and elemental analyses of whole-rock limestone samples reveal strongly and consistently negative carbon and oxygen isotopic compositions, generally high Mn and Fe concentrations, and low Sr and Mg concentrations, suggesting post-depositional diagenetic alteration and re-equilibration with hot meteoric waters or infiltrating metamorphic fluids. The carbon and oxygen isotopic compositions are spatially highly variable, indicating local rather than global control, with no clear systematic stratigraphic trends. Petrographic analysis also revealed evidence of intense diagenetic alteration, including recrystallization textures, stylolite structures, widespread dolomitization, and the presence of minerals known to be associated with contact metamorphosed carbonate-rich rocks, such as diopside and scapolite. The Espanola Formation contains evidence of syn-depositional, rift-related seismic activity, including widespread load casts, ball-and-pillow structures, convolute bedding and lamination, dish-and-pillar structures, clastic dykes, and slump structures. With the exception of slump structures and associated slip faces, the majority of these deformation features are restricted to discrete stratigraphic horizons, laterally traceable over 100s of meters, and confined between undisturbed strata of similar lithology. It is proposed that normal fault systems bounding the study area were active during lower Huronian basin subsidence, and may have been the main control on sedimentation.

Subjects/Keywords: Espanola Formation; Huronian Supergroup; Paleoproterozoic; rift basin; mixed carbonate-siliciclastic; shallow-marine; cap carbonate; geochemistry; stable carbon and oxygen isotopes; Geochemistry; Sedimentology

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

APA (6th Edition):

Al-Hashim, M. H. (2016). Sedimentology and geochemistry of the mixed carbonate-siliciclastic Espanola Formation, Paleoproterozoic Huronian Supergroup, Bruce Mines-Elliot Lake Area, Ontario, Canada. (Thesis). University of Western Ontario. Retrieved from https://ir.lib.uwo.ca/etd/4350

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

Chicago Manual of Style (16th Edition):

Al-Hashim, Mansour H. “Sedimentology and geochemistry of the mixed carbonate-siliciclastic Espanola Formation, Paleoproterozoic Huronian Supergroup, Bruce Mines-Elliot Lake Area, Ontario, Canada.” 2016. Thesis, University of Western Ontario. Accessed April 12, 2021. https://ir.lib.uwo.ca/etd/4350.

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

MLA Handbook (7th Edition):

Al-Hashim, Mansour H. “Sedimentology and geochemistry of the mixed carbonate-siliciclastic Espanola Formation, Paleoproterozoic Huronian Supergroup, Bruce Mines-Elliot Lake Area, Ontario, Canada.” 2016. Web. 12 Apr 2021.

Vancouver:

Al-Hashim MH. Sedimentology and geochemistry of the mixed carbonate-siliciclastic Espanola Formation, Paleoproterozoic Huronian Supergroup, Bruce Mines-Elliot Lake Area, Ontario, Canada. [Internet] [Thesis]. University of Western Ontario; 2016. [cited 2021 Apr 12]. Available from: https://ir.lib.uwo.ca/etd/4350.

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

Council of Science Editors:

Al-Hashim MH. Sedimentology and geochemistry of the mixed carbonate-siliciclastic Espanola Formation, Paleoproterozoic Huronian Supergroup, Bruce Mines-Elliot Lake Area, Ontario, Canada. [Thesis]. University of Western Ontario; 2016. Available from: https://ir.lib.uwo.ca/etd/4350

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


McMaster University

3. Eggertson, E. Bruce. The Espanola Formation: A Proterozoic Carbonate North of Lake Huron, Ontario.

Degree: 1975, McMaster University

URL: http://hdl.handle.net/11375/17756 

The Proterozoic Espanola Formation (Huronian Sequence) was studied at Geneva Lake, Ontario, 45 miles north-west of Sudbury. A major lithological change exists in the Espanola Formation between this area and the type section on the north shore of Lake Huron, 75 miles to the south. Unusually pure (95 percent) microcrystalline limestones and dolostones occur in almost equal abundance to the calcareous siltstones which are the characteristic lithology of the formation in its type section. The existence and position of a fine grained deposit such as the Espanola in a stratigraphic sequence which consists mostly of glacial and periglacial deposits is unusual. It is suggested that this fine-grained deposit was an integral part of a cycle of deposition resulting from glacial advance and retreat and that its sedimentary basin was created by marine transgression in response to a glacial retreat. Spatial distribution of the Espanola Formation suggests that its sedimentary basin may have consisted of at least three environmental zones. At least one of these zones may represent a glacial melt-water lake. A microfossil search was carried out with negative results. This made speculation necessary in determining the origin of the calcareous fraction of the Espanola Formation. A mechanism is suggested whereby calcium carbonate is precipitated inorganically, as a result of photosynthesis by anaerobic bacteria. This mechanism can be observed in the present. If it is true, then the Espanola Formation may represent a time marker for the first presence of free oxygen in the atmosphere.

Thesis

Bachelor of Science (BSc)

Advisors/Committee Members: Risk, M. J., Clifford, P. M., Geology.

Subjects/Keywords: Proterozoic Espanola Formation; Huronian Sequence; Geneva Lake; lithology; Espanola; cycle of deposition; glacial advance and retreat; calcium carbonate precipitation

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

APA (6th Edition):

Eggertson, E. B. (1975). The Espanola Formation: A Proterozoic Carbonate North of Lake Huron, Ontario. (Thesis). McMaster University. Retrieved from http://hdl.handle.net/11375/17756

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

Chicago Manual of Style (16th Edition):

Eggertson, E Bruce. “The Espanola Formation: A Proterozoic Carbonate North of Lake Huron, Ontario.” 1975. Thesis, McMaster University. Accessed April 12, 2021. http://hdl.handle.net/11375/17756.

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

MLA Handbook (7th Edition):

Eggertson, E Bruce. “The Espanola Formation: A Proterozoic Carbonate North of Lake Huron, Ontario.” 1975. Web. 12 Apr 2021.

Vancouver:

Eggertson EB. The Espanola Formation: A Proterozoic Carbonate North of Lake Huron, Ontario. [Internet] [Thesis]. McMaster University; 1975. [cited 2021 Apr 12]. Available from: http://hdl.handle.net/11375/17756.

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

Council of Science Editors:

Eggertson EB. The Espanola Formation: A Proterozoic Carbonate North of Lake Huron, Ontario. [Thesis]. McMaster University; 1975. Available from: http://hdl.handle.net/11375/17756

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

.