气候变化领域集成服务门户(CCPortal): Mississippian mud rocks of the eastern Great Basin: Stratigraphy; tectonic significance; and hydrocarbon potential

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DOI	10.1306/05091918190
	Mississippian mud rocks of the eastern Great Basin: Stratigraphy; tectonic significance; and hydrocarbon potential
	French D.E.; Trexler J.H.; Jr.; Cashman P.H.; Walker J.P.; Wylie A.S.; Jr.
发表日期	2020
ISSN	0149-1423
起始页码	387
结束页码	410
卷号	104 期号:2
英文摘要	A thick succession of Mississippian mud rocks in the eastern Great Basin has historically been identified as the Chainman Shale and interpreted as a foreland basin deposit associated with the Antler orogeny. Our work shows that this section is two distinct mud-rock units separated by a Late Mississippian unconformity. The Gap Wash Formation is identified as the mud rock below the unconformity, and Chainman Shale is restricted to mud rock above the unconformity. Poor exposure, sparse age control, and limited lithologic contrast have hampered identification and correlation of the mud-rock units. New research identifies subtle differences in rock type, and mineralogical and source-rock analyses show that the two formations have contrasting characteristics. These are associated with petrophysical properties that can be correlated across the region. The data show that the Gap Wash Formation has significantly more organic carbon and better pyrolysis results than the Chainman Shale. The Gap Wash also has mineralogy that could make it more suitable for treatment as a shale reservoir. The new understanding of Mississippian mud rocks in the Great Basin can focus future hydrocarbon exploration. The mud-rock units record regional Mississippian paleogeographic evolution. The Gap Wash Formation was deposited into accommodation space created by the loading of the continental margin during the Antler orogeny. The Chainman Shale was deposited in a successor basin that formed in response to resumed continental margin contraction in the late Meramecian to early Chesterian and is not clearly associated with the Antler orogeny. © 2020. The American Association of Petroleum Geologists. All rights reserved.
语种	英语
scopus关键词	Hydrocarbons; Minerals; Organic carbon; Petroleum prospecting; Petrophysics; Stratigraphy; Accommodation space; Continental margin; Foreland basin; Hydrocarbon exploration; Hydrocarbon potential; Mississippians; Petrophysical properties; Source rocks; Shale; hydrocarbon exploration; lithostratigraphy; Mississippian; mudstone; petrography; pyrolysis; reservoir characterization; source rock; tectonic structure; Great Basin; United States
来源期刊	AAPG Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/143724
作者单位	Ciannis Exploration, LLC, Billings, MT, United States; University of Nevada, Reno, United States; Department of Geological Sciences and Engineering, University of Nevada, Reno, NV, United States; Consulting Geologist, Reno, NV, United States; North, Cabot Oil and Gas Corporation, Pittsburgh, PA, United States
推荐引用方式 GB/T 7714	French D.E.,Trexler J.H.,Jr.,et al. Mississippian mud rocks of the eastern Great Basin: Stratigraphy; tectonic significance; and hydrocarbon potential[J],2020,104(2).
APA	French D.E..,Trexler J.H..,Jr..,Cashman P.H..,Walker J.P..,...&Jr..(2020).Mississippian mud rocks of the eastern Great Basin: Stratigraphy; tectonic significance; and hydrocarbon potential.AAPG Bulletin,104(2).
MLA	French D.E.,et al."Mississippian mud rocks of the eastern Great Basin: Stratigraphy; tectonic significance; and hydrocarbon potential".AAPG Bulletin 104.2(2020).