Seismic characteristics of the Huaguang mass transport deposits in the Qiongdongnan Basin, South China Sea: Implications for regional tectonic activity

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	Seismic characteristics of the Huaguang mass transport deposits in the Qiongdongnan Basin, South China Sea: Implications for regional tectonic activity
	Wang Dawei 1,2; Wu Shiguo 1,2; Qin Zhiliang 3; Spence, George 4; Lu Fuliang 5
刊名	MARINE GEOLOGY
	2013-12-01
卷号	346 页码:165-182
关键词	Mass transport deposits Seismic characteristics Qiongdongnan Basin South China Sea Red River Shear Zone
ISSN号	0025-3227
通讯作者	Wang, DW
中文摘要	Mass transport deposits (MTDs) occur in the South China Sea region, within the Qiongdongnan Basin, north of Guangle Uplift and west of Xisha Uplift The MTDs (termed the Huaguang MTDs) are widely distributed in the late Miocene sedimentary strata, which belong to the upper Huangliu Formation (8.2-5.5 Ma). Their general flow direction is from south to north. As a large-scale buried MTD system, it covers an area of more than 18,000 km(2). The system must be closely related to regional tectonic events, climate change, and variations in sedimentation rate. The dominant period when the Huaguang MTDs developed corresponds to the phase when the Red River Shear Zone reversed from left- to right-lateral slip. This event may have a close relationship with local uplift of Indochina, volcanism, and fault activation or re-activation within the surrounding area. Later in the Miocene, the accelerated onshore denudation and offshore basin subsidence of eastern Vietnam, and development of a mountainous river system, led to filling of the Yinggehai Basin and rapid accumulation of sediment which formed the regional steep bathymetry and weak cementation within the sediments. The sediment characteristics provide the critical conditions for forming MTDs. Polygonal faults within the MTDs and underlying strata show that fluid leakage took place following deposition of the MTDs. We suggest that the dominant trigger mechanism for large-scale MTDs was the activation or re-activation of major faults and associated volcanism in the late Miocene. (C) 2013 Elsevier B.V. All rights reserved.
英文摘要	Mass transport deposits (MTDs) occur in the South China Sea region, within the Qiongdongnan Basin, north of Guangle Uplift and west of Xisha Uplift The MTDs (termed the Huaguang MTDs) are widely distributed in the late Miocene sedimentary strata, which belong to the upper Huangliu Formation (8.2-5.5 Ma). Their general flow direction is from south to north. As a large-scale buried MTD system, it covers an area of more than 18,000 km(2). The system must be closely related to regional tectonic events, climate change, and variations in sedimentation rate. The dominant period when the Huaguang MTDs developed corresponds to the phase when the Red River Shear Zone reversed from left- to right-lateral slip. This event may have a close relationship with local uplift of Indochina, volcanism, and fault activation or re-activation within the surrounding area. Later in the Miocene, the accelerated onshore denudation and offshore basin subsidence of eastern Vietnam, and development of a mountainous river system, led to filling of the Yinggehai Basin and rapid accumulation of sediment which formed the regional steep bathymetry and weak cementation within the sediments. The sediment characteristics provide the critical conditions for forming MTDs. Polygonal faults within the MTDs and underlying strata show that fluid leakage took place following deposition of the MTDs. We suggest that the dominant trigger mechanism for large-scale MTDs was the activation or re-activation of major faults and associated volcanism in the late Miocene. (C) 2013 Elsevier B.V. All rights reserved.
学科主题	Geology ; Oceanography
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Geosciences, Multidisciplinary ; Oceanography
研究领域[WOS]	Geology ; Oceanography
关键词[WOS]	CENTRAL VIETNAM ; XISHA TROUGH ; MARGIN ; EVOLUTION ; SYSTEM ; SUBSIDENCE ; HISTORY ; BASALTS ; GROWTH ; HAINAN
收录类别	SCI
原文出处	10.1016/j.margeo.2013.09.003
语种	英语
WOS记录号	WOS:000328869900013
公开日期	2014-07-17
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/16317]
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, Inst Oceanol, Marine Oil & Gas Res Ctr, Qingdao 266071, Peoples R China 3.Natl Marine Hazard Mitigat Serv, Beijing 100194, Peoples R China 4.Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC V8W 3V6, Canada 5.PetroChina Hangzhou Inst Geol, Hangzhou 310023, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Wang Dawei,Wu Shiguo,Qin Zhiliang,et al. Seismic characteristics of the Huaguang mass transport deposits in the Qiongdongnan Basin, South China Sea: Implications for regional tectonic activity[J]. MARINE GEOLOGY,2013,346:165-182.
APA	Wang Dawei,Wu Shiguo,Qin Zhiliang,Spence, George,&Lu Fuliang.(2013).Seismic characteristics of the Huaguang mass transport deposits in the Qiongdongnan Basin, South China Sea: Implications for regional tectonic activity.MARINE GEOLOGY,346,165-182.
MLA	Wang Dawei,et al."Seismic characteristics of the Huaguang mass transport deposits in the Qiongdongnan Basin, South China Sea: Implications for regional tectonic activity".MARINE GEOLOGY 346(2013):165-182.