Recurrent slope failure enhancing source rock burial depth and seal unit competence in the Pearl River Mouth Basin, offshore South China Sea

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋地质与环境重点实验室

	Recurrent slope failure enhancing source rock burial depth and seal unit competence in the Pearl River Mouth Basin, offshore South China Sea
	Zhao, Fang1,5 ; Alves, Tiago M.2; Li, Wei 3; Wu, Shiguo 4
刊名	TECTONOPHYSICS
	2015-03-07
卷号	643 页码:1-7
关键词	Continental margins South China Sea Mass-transport deposits Faults Burial depth Petroleum plays
英文摘要	High-quality 3-D seismic data are used to assess the significance of mass-transport deposits (MTDs) to the evolution of the Pearl River Mouth Basin (South China Sea). Basal shear surfaces and lateral margins of seven recurrent MTDs are mapped to reveal a general NE-SW transport direction throughout the Late Miocene-Quaternary. A key result of our analysis is the perceived relationship between the recurrence of slope instability in the study area and the Dongsha Tectonic Event. Using borehole data to constrain the ages of interpreted MTDs, we show that tectonic uplift in the northern South China Sea led to slope oversteepening in the Late Miocene (between 10.5 Ma and 5.5 Ma), preconditioning it to fail recurrently for more than 10 Ma. Interpreted MTDs are shown to enhance burial depths of source and reservoir units, and improve seal competence in lower-slope areas. Conversely, upper slope regions record important erosion and reduced sealing capacity in Late Cenozoic strata. As a result, we postulate that the thickness variations imposed by MTDs on Late Miocene-Quaternary strata have important implications to petroleum plays in the South China Sea. (C) 2014 Elsevier B.V. All rights reserved.
收录类别	SCI
语种	英语
WOS记录号	WOS:000350836000001
公开日期	2015-06-16
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/25420]
专题	海洋研究所_海洋地质与环境重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Cardiff Univ, Sch Earth & Ocean Sci, Seism Lab 3D, Cardiff CF10 3AT, S Glam, Wales 3.Univ Bremen, Ctr Marine Environm Sci, MARUM, D-28359 Bremen, Germany 4.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Fang,Alves, Tiago M.,Li, Wei,et al. Recurrent slope failure enhancing source rock burial depth and seal unit competence in the Pearl River Mouth Basin, offshore South China Sea[J]. TECTONOPHYSICS,2015,643:1-7.
APA	Zhao, Fang,Alves, Tiago M.,Li, Wei,&Wu, Shiguo.(2015).Recurrent slope failure enhancing source rock burial depth and seal unit competence in the Pearl River Mouth Basin, offshore South China Sea.TECTONOPHYSICS,643,1-7.
MLA	Zhao, Fang,et al."Recurrent slope failure enhancing source rock burial depth and seal unit competence in the Pearl River Mouth Basin, offshore South China Sea".TECTONOPHYSICS 643(2015):1-7.