Listiono, Geraldus Adi.
Mixed siliciclastic-carbonate system of the middle member of the Bakken Formation, Williston Basin, North Dakota.
Degree: MS(M.S.), Geology and Geological Engineering, 2016, Colorado School of Mines
The Middle Member of the Bakken Formation (MM-BF) is a mixed siliciclastic-carbonate unit deposited in the shallow, epeiric shelf setting of the Williston Basin during the Famennian-Tournaisian Transgression. The MM-BF in North Dakota consists of six distinct units (MB-A to F) but primarily can be divided into: (1) lower variably calcareous dolomitic siltstone, (2) middle calcareous grainstone-sandstone, (3) and upper argillaceous dolomitic siltstone. Stratigraphic analysis of subsurface core reveals that the lower siltstone unit (MB-A, B, & C) was deposited in a tide-dominated, wave-influenced environment as part of a highstand to falling stage systems tract. The middle MM-BF sandstone (MB-D) is a lowstand systems tract (LST) deposited in tide-dominated, wave-influenced environments. The upper MM-BF siltstone (MB-E & F) contains tide-dominated environment in a transgressive systems tract. Cycle analysis of alternating siliciclastic-carbonate intervals reveals that the interplay of tides, storms, and seasonal changes in oceanic surface current played an important role in the mixing of carbonate and siliciclastic constituents within the MM-BF. The calcareous sandstone-grainstone of MB-D presents unique opportunity to investigate mechanisms of sediment delivery and siliciclastic-carbonate mixing in an epeiric shelf/low-angle ramp setting. The grain size, mineralogy, and zircon trends indicate a siliciclastic delivery system that originated from a northern ephemeral drainage system. Reworked carbonate grains were sourced from intra-basinal paleo-highs and subjected to significant storm and wave reworking. The discontinuous nature of MB-D is due to both depositional and erosional thinning. Thickness variations of this facies are similar to modern oolitic environments where shoal and bars are cut and incised by tidal channels. The base of the MB-D is a 3rd order sequence boundary (Ss5) and the top of the unit is a transgressive surface of erosion event (Ss6). Variations in thickness are related to these two services. With the presence of erosional thinning, MB-D may not represent a complete depositional environment and is a depositional or accommodational remnant. MB-D thick trends in the north-northwestern part of the study area are preserved offshore bars that developed on topographic or bathymetric highs. In the northeast- and central part of the study area, MB-D thicker sections are bats that filled bathymetric lows or are incised channels. This study also presented a comprehensive initial look at the basic reservoir properties of the MM-BF in North Dakota. Porosity-permeability-grain density cross plots along with UV fluorescence reveal that early burial calcite cement prevented dolomitization, and this cement has detrimental effects on the reservoir properties of MM-BF. Core mechanical analysis was conducted using a micro-rebound hammer, Proceq Bambino, to acquire the Leeb hardness value of the rock. Hardness refers to the measure of resistance to a permanent deformation and can lead to the evaluation of…
Advisors/Committee Members: Sonnenberg, Stephen A. (advisor), French, Marsha (committee member), Hendricks, Michael L. (committee member).
Subjects/Keywords: Bakken; Depositional remnant; Epeiric shelf; Mixed siliciclastic carbonate; Ramp system; Reservoir characterization
…the modern siliciclastic dominated
epeiric sea of the NW European shelf. Transport and… …depositional model for the Three Forks Formation
depicting a shallow epeiric platform or ramp under… …shore or from shelf break. Note that in some sedimentstarved areas (bed-load parting)… …the seasonal change in wind
directions resembling the modern epeiric SCS (modified from… …97
Figure 5-21: Modern examples of facies mixing include the Belize shelf and Great
to Zotero / EndNote / Reference
APA (6th Edition):
Listiono, G. A. (2016). Mixed siliciclastic-carbonate system of the middle member of the Bakken Formation, Williston Basin, North Dakota. (Masters Thesis). Colorado School of Mines. Retrieved from http://hdl.handle.net/11124/170228
Chicago Manual of Style (16th Edition):
Listiono, Geraldus Adi. “Mixed siliciclastic-carbonate system of the middle member of the Bakken Formation, Williston Basin, North Dakota.” 2016. Masters Thesis, Colorado School of Mines. Accessed December 14, 2019.
MLA Handbook (7th Edition):
Listiono, Geraldus Adi. “Mixed siliciclastic-carbonate system of the middle member of the Bakken Formation, Williston Basin, North Dakota.” 2016. Web. 14 Dec 2019.
Listiono GA. Mixed siliciclastic-carbonate system of the middle member of the Bakken Formation, Williston Basin, North Dakota. [Internet] [Masters thesis]. Colorado School of Mines; 2016. [cited 2019 Dec 14].
Available from: http://hdl.handle.net/11124/170228.
Council of Science Editors:
Listiono GA. Mixed siliciclastic-carbonate system of the middle member of the Bakken Formation, Williston Basin, North Dakota. [Masters Thesis]. Colorado School of Mines; 2016. Available from: http://hdl.handle.net/11124/170228