气候变化领域集成服务门户(CCPortal): Architecture, geomorphology, and sediment gravity flows of a Jurassic subaqueous clinoform system, northeast Exmouth Plateau, North West Shelf, Australia

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DOI	10.1306/12171817367
	Architecture, geomorphology, and sediment gravity flows of a Jurassic subaqueous clinoform system, northeast Exmouth Plateau, North West Shelf, Australia
	Chen P.; Elders C.
发表日期	2019
ISSN	0149-1423
卷号	103 期号:7
英文摘要	A subaqueous clinoform system has been identified from highquality three-dimensional seismic data from the northeast Exmouth Plateau, North West Shelf, Australia, and was interpreted as a shelf-slope-basin clinoformal component of a Jurassic fluviodeltaic system (the Legendre delta). Several geomorphological features associated with shelf-slope development and subsequent rift tectonics were identified, including (1) submarine channels at slope to basin floor; (2) gullies on the slope; (3) slumps on the shelf; and (4) canyons, canyon-derived gravity flow deposits, and a fan lobe developed in subsequent rift processes. The results of this study provide insights into the controlling factors on the sinuosity, degree of erosion, and sediment gravity flows of channels developed at slope to basin-floor settings, which shed light on the way fluvial sands were transported across the shelf and slope to the basin floor. The geometries and distributions of gravity flow deposits, if confirmed by drilling, may serve as an analog for reservoir prediction in the deep-water fluviodeltaic settings. The gullies on the slope were interpreted as a result of dilute, sheetlike flows. The slumps on the shelf were interpreted as a result of nonslope-related causes. The syntectonic canyons, the canyon-derived gravity flow deposits, and the fan lobe present vivid examples of the erosion and sedimentation processes during active rift tectonics and havesignificant implications for understanding the rift processes of the North West Shelf, Australia, as well as other rift-related basins. © 2019. The American Association of Petroleum Geologists.
语种	英语
scopus关键词	Deposits; Erosion; Floors; Reservoirs (water); Seismology; Tectonics; Controlling factors; Degree of erosion; Erosion and sedimentation; North west shelves; Reservoir prediction; Sediment gravity flow; Submarine channel; Three dimensional seismic data; Landforms; drilling; geomorphology; gravity flow; Jurassic; sediment analysis; sedimentation; seismic data; submarine channel; tectonics; Australia; Exmouth Plateau; Indian Ocean
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/125054
作者单位	School of Earth and Planetary Sciences, Curtin University, Bentley, Perth, WA, Australia
推荐引用方式 GB/T 7714	Chen P.,Elders C.. Architecture, geomorphology, and sediment gravity flows of a Jurassic subaqueous clinoform system, northeast Exmouth Plateau, North West Shelf, Australia[J],2019,103(7).
APA	Chen P.,&Elders C..(2019).Architecture, geomorphology, and sediment gravity flows of a Jurassic subaqueous clinoform system, northeast Exmouth Plateau, North West Shelf, Australia.AAPG Bulletin,103(7).
MLA	Chen P.,et al."Architecture, geomorphology, and sediment gravity flows of a Jurassic subaqueous clinoform system, northeast Exmouth Plateau, North West Shelf, Australia".AAPG Bulletin 103.7(2019).