干旱区生态环境知识资源中心(Arid): Sedimentary flow heterogeneities in the Triassic UK Sherwood Sandstone Group: Insights for hydrocarbon exploration

Arid

DOI	10.1002/gj.3233
	Sedimentary flow heterogeneities in the Triassic UK Sherwood Sandstone Group: Insights for hydrocarbon exploration
	Medici, Giacomo; West, L. Jared; Mountney, Nigel P.
通讯作者	Medici, Giacomo
来源期刊	GEOLOGICAL JOURNAL
ISSN	0072-1050
EISSN	1099-1034
出版年	2019
卷号	54 期号:3 页码:1361-1378
英文摘要	Fluvial and aeolian sedimentary successions host important hydrocarbon resources as well as major groundwater aquifers. This review of the lithological characteristics of Triassic fluvio-aeolian successions of the Sherwood Sandstone Group (United Kingdom) demonstrates how distance from a fluvial sediment source and rate of rift-related tectonic subsidence play important roles in governing reservoir quality in continental successions. Increasing distance from the fluvial sediment source area results in increased porosity and permeability in deposits of mixed fluvial and aeolian reservoir successions that accumulated in arid and semiarid settings. Indeed, successions of the U.K. Sherwood Sandstone Group reveal an increase in the proportion of highly permeable deposits of aeolian origin with increasing distance from the principal uplands, represented by the Armorican Massif in northern France, which formed the main source for delivery of fluvial sediment to a series of rift basins. A progressive reduction in the discharge of fluvial systems entering and passing through a series of interlinked rift basins encouraged aeolian accumulation in more distal basins. Extensional tectonics enabled preservation of highly permeable aeolian facies in basins subject to high rates (100m/Myr) of tectonic subsidence by rapidly placing such deposits below the water table. However, successions exclusively characterized by fluvial lithofacies record decreases in both porosity and permeability with increasing distance (similar to 250-750km) from the sediment source due to the coupling of porosity reduction and increasing clay content.
英文关键词	aeolian fluvial heterogeneities permeability reservoir sediment source subsidence
类型	Article
语种	英语
国家	England
开放获取类型	Green Accepted
收录类别	SCI-E
WOS记录号	WOS:000465392600015
WOS关键词	IRISH SEA BASIN ; WESSEX BASIN ; FLUVIAL RESERVOIRS ; CHESHIRE BASIN ; GEODYNAMIC IMPLICATIONS ; SEQUENCE STRATIGRAPHY ; DEFORMATION BANDS ; BUNTER SANDSTONE ; OTTER SANDSTONE ; AEOLIAN SYSTEM
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215957
作者单位	Univ Leeds, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, England
推荐引用方式 GB/T 7714	Medici, Giacomo,West, L. Jared,Mountney, Nigel P.. Sedimentary flow heterogeneities in the Triassic UK Sherwood Sandstone Group: Insights for hydrocarbon exploration[J],2019,54(3):1361-1378.
APA	Medici, Giacomo,West, L. Jared,&Mountney, Nigel P..(2019).Sedimentary flow heterogeneities in the Triassic UK Sherwood Sandstone Group: Insights for hydrocarbon exploration.GEOLOGICAL JOURNAL,54(3),1361-1378.
MLA	Medici, Giacomo,et al."Sedimentary flow heterogeneities in the Triassic UK Sherwood Sandstone Group: Insights for hydrocarbon exploration".GEOLOGICAL JOURNAL 54.3(2019):1361-1378.