Formation and syn-rifting process of the Wan'an Basin, 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

	Formation and syn-rifting process of the Wan'an Basin, South China Sea
	Lu Caili 1,2; Yao Yongjian 3; Wu Shiguo 1; Dong Dongdong 1
刊名	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
	2013
卷号	31 期号:1 页码:190-201
关键词	tectonic subsidence rift Wan'an Basin South China Sea (SCS)
ISSN号	0254-4059
通讯作者	Wu, SG
中文摘要	Based on seismic and drilling data, we calculated tectonic subsidence amounts and rates of the Wan'an Basin by backstripping. The genetic mechanism and syn-rifting process of the basin were analyzed in combination with the regional geological setting. The results reveal that the basin syn-rifted in the Eocene and early Miocene under the control of the dextral strike-slip Wan'an Fault Zone. The transtensional/extentional stresses along this fault zone may be attributed to seafloor spreading of the South China Sea (SCS) in multiple episodes. Extensive basal faults and some small initial rifts in the early Paleogene can be related to southeastward extrusion and clockwise rotation of the Indochina Block. During the Oligocene, the nearly N-S directed spreading of the SCS derived the transtensional stresses in a roughly NW-SE orientation. The basin subsided rapidly in the middle and north to form two major subsidence centers. In the early Miocene, the SCS spread again in a nearly NW-SE direction, resulting in rapid subsidence in the southern basin continuous extending until the period similar to 16.3 Ma.
英文摘要	Based on seismic and drilling data, we calculated tectonic subsidence amounts and rates of the Wan'an Basin by backstripping. The genetic mechanism and syn-rifting process of the basin were analyzed in combination with the regional geological setting. The results reveal that the basin syn-rifted in the Eocene and early Miocene under the control of the dextral strike-slip Wan'an Fault Zone. The transtensional/extentional stresses along this fault zone may be attributed to seafloor spreading of the South China Sea (SCS) in multiple episodes. Extensive basal faults and some small initial rifts in the early Paleogene can be related to southeastward extrusion and clockwise rotation of the Indochina Block. During the Oligocene, the nearly N-S directed spreading of the SCS derived the transtensional stresses in a roughly NW-SE orientation. The basin subsided rapidly in the middle and north to form two major subsidence centers. In the early Miocene, the SCS spread again in a nearly NW-SE direction, resulting in rapid subsidence in the southern basin continuous extending until the period similar to 16.3 Ma.
学科主题	Marine & Freshwater Biology ; Oceanography
WOS标题词	Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
类目[WOS]	Limnology ; Oceanography
研究领域[WOS]	Marine & Freshwater Biology ; Oceanography
关键词[WOS]	STRIKE-SLIP FAULTS ; CON-SON BASINS ; TECTONIC SUBSIDENCE ; OFFSHORE VIETNAM ; INDO-CHINA ; CUU-LONG ; EVOLUTION ; ASIA ; KINEMATICS ; EXTRUSION
收录类别	SCI
原文出处	10.1007/s00343-013-1220-5
语种	英语
WOS记录号	WOS:000313654000021
公开日期	2014-07-17
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/16303]
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.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Guangzhou Marine Geol Survey, Guangzhou 510075, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Lu Caili,Yao Yongjian,Wu Shiguo,et al. Formation and syn-rifting process of the Wan'an Basin, South China Sea[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2013,31(1):190-201.
APA	Lu Caili,Yao Yongjian,Wu Shiguo,&Dong Dongdong.(2013).Formation and syn-rifting process of the Wan'an Basin, South China Sea.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,31(1),190-201.
MLA	Lu Caili,et al."Formation and syn-rifting process of the Wan'an Basin, South China Sea".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 31.1(2013):190-201.