Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1306/01111715183 |
Sedimentology, facies architecture, and sequence stratigraphy of a Mississippian black mudstone succession-The upper member of the Bakken Formation, North Dakota, United States | |
Borcovsky, D.1,2; Egenhoff, S.1; Fishman, N.3,4; Maletz, J.5; Boehlke, A.6; Lowers, H.6 | |
2017-10-01 | |
发表期刊 | AAPG BULLETIN
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ISSN | 0149-1423 |
EISSN | 1558-9153 |
出版年 | 2017 |
卷号 | 101期号:10 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Germany |
英文摘要 | The Lower Mississippian upper shale member of the Bakken Formation in the Williston Basin, North Dakota, consists of organic-rich, black, siliciclastic mudstones deposited offshore on a low-gradient shelf; 12 fine-grained facies are recognized and grouped into 5 facies associations (FAs). Very fine-grained, massive to faintly laminated mudstone (FA1) records deposition in the deepest, calmest parts of the basin, whereas well-laminated mudstones (FA2a); well-laminated, clay-clast-bearing mudstones (FA2b); burrow-mottled mudstone with shells (FA3); and interlaminated siltstone and mudstone (FA4) suggest deposition in the shallower, less calm, and more proximal offshore environment. These proximal-offshore mudstones (FA2a, FA2b, FA3, and FA4) reflect (1) variation in bottom-water oxygen levels and (2) lateral changes in the input of silt and clay clasts. Ubiquitous Phycosiphon fecal strings, patches of shells, burrows, and rare agglutinated foraminifera indicate dysoxic to suboxic basinal deposition and not a persistently anoxic environment. In all FAs, storm-event laminae are sparse to ubiquitous. Repeated stacking of FAs defines up to 10 coarsening-upward parasequences mostly 0.15-0.60 m (0.49-1.97 ft) thick. Individual parasequences can be correlated for 300 km (180 mi) through the basin. The lower half of the succession (interval 1) represents a transgressive systems tract and shows high radiolarian productivity with minor silt input. The upper half of the succession (interval 2) represents the base of a highstand systems tract. In contrast to interval 1, interval 2 mudstones are characterized by high clay content, low radiolarian productivity, and intermittent colonization of the sea floor during higher-order sea-level lowstands. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000410656600003 |
WOS关键词 | CONTINENTAL SHELVES ; TRANSPORT PROCESSES ; WILLISTON BASIN ; SOURCE ROCKS ; DEPOSITION ; STRATA ; ORIGIN ; SHALES ; MODEL |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/24381 |
专题 | 地球科学 |
作者单位 | 1.Colorado State Univ, Dept Geosci, 322 Nat Resources Bldg, Ft Collins, CO 80523 USA; 2.Pioneer Nat Resources, 5205 N OConnor Blvd 200, Irving, TX 75039 USA; 3.US Geol Survey, Denver Fed Ctr, MS 939,POB 25046, Denver, CO 80225 USA; 4.Hess Corp, 1501 McKinney St, Houston, TX 77010 USA; 5.Free Univ Berlin, Inst Geol Wissensch, Malteser Str 74-100,Haus C,Raum 005, D-12249 Berlin, Germany; 6.US Geol Survey, Denver Fed Ctr, MS 977,POB 25046, Denver, CO 80225 USA |
推荐引用方式 GB/T 7714 | Borcovsky, D.,Egenhoff, S.,Fishman, N.,et al. Sedimentology, facies architecture, and sequence stratigraphy of a Mississippian black mudstone succession-The upper member of the Bakken Formation, North Dakota, United States[J]. AAPG BULLETIN,2017,101(10). |
APA | Borcovsky, D.,Egenhoff, S.,Fishman, N.,Maletz, J.,Boehlke, A.,&Lowers, H..(2017).Sedimentology, facies architecture, and sequence stratigraphy of a Mississippian black mudstone succession-The upper member of the Bakken Formation, North Dakota, United States.AAPG BULLETIN,101(10). |
MLA | Borcovsky, D.,et al."Sedimentology, facies architecture, and sequence stratigraphy of a Mississippian black mudstone succession-The upper member of the Bakken Formation, North Dakota, United States".AAPG BULLETIN 101.10(2017). |
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