干旱区生态环境知识资源中心(Arid): Depositional characteristics and evolution of the shallow water deltaic channel sand bodies in Fuyu oil layer of central downwarp zone of Songliao Basin, NE China

Arid

DOI	10.1007/s12517-019-4762-9
	Depositional characteristics and evolution of the shallow water deltaic channel sand bodies in Fuyu oil layer of central downwarp zone of Songliao Basin, NE China
	Deng, Qingjie 1,2; Hu, Mingyi 2; Hu, Zhonggui 2
通讯作者	Deng, Qingjie ; Hu, Mingyi
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2019
卷号	12 期号:19
英文摘要	Relatively few subsurface studies have been conducted on shallow water deltaic channel characteristics and evolution in Songliao Basin's Fuyu oil layer. Using data from 2000-m cores and 60 wells, the shallow water deltaic channels sand bodies in the Fuyu oil layer are reconstructed. The main controlling factors over depositional system evolution are identified. Twelve lithofacies and four main facies associations are summarized. Four facies associations are identified, including (1) a simple distributary channel association, (2) type A point bar distributary channel association, (3) type B point bar distributary channel association, and (4) an underwater distributary channel association. The depositional evolution of the channels is derived from a lacustrine regressive-transgressive cycle that is driven by climate variability and tectonics, and linked to changes in relative lake-level. During periods of rapid drops in relative lake-level or rises in the semi-arid lower shallow water delta plain, channel, sand bodies are type B point bar distributary channel of laterally aggregational deposits. When relative lake level reaches to its lowest value, it results in a large-scale erosive bounding surface juxtaposed with type A point bar distributary channel sand bodies that are infilled with thick bedding in the upper shallow water delta plain. When high relative lake levels generate regional high accommodation/sediment supply ratios, the thin-bedding underwater distributary channel sand bodies are deposited in the humid shallow water deltaic front. Shallow water delta fills are capped by laterally extensive and continuous deep lacustrine dark mudstone and oil shale elements as the relative lake level rises to its highest value.
英文关键词	Channel types Channel depositional evolution Relative lake-level Accommodation/sediment supply ratio Shallow water delta
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000500583500002
WOS关键词	SEQUENCE STRATIGRAPHY ; FACIES ARCHITECTURE ; SANDSTONE
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
EI主题词	2019-10-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310171
作者单位	1.Yangtze Univ, Key Lab Explorat Technol Oil & Gas Resources, Minist Educ, Wuhan 434000, Hubei, Peoples R China; 2.Yangtze Univ, Sch Geosci, Wuhan 434000, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Deng, Qingjie,Hu, Mingyi,Hu, Zhonggui. Depositional characteristics and evolution of the shallow water deltaic channel sand bodies in Fuyu oil layer of central downwarp zone of Songliao Basin, NE China[J],2019,12(19).
APA	Deng, Qingjie,Hu, Mingyi,&Hu, Zhonggui.(2019).Depositional characteristics and evolution of the shallow water deltaic channel sand bodies in Fuyu oil layer of central downwarp zone of Songliao Basin, NE China.ARABIAN JOURNAL OF GEOSCIENCES,12(19).
MLA	Deng, Qingjie,et al."Depositional characteristics and evolution of the shallow water deltaic channel sand bodies in Fuyu oil layer of central downwarp zone of Songliao Basin, NE China".ARABIAN JOURNAL OF GEOSCIENCES 12.19(2019).