| Seismic characteristics of the Huaguang mass transport deposits in the Qiongdongnan Basin, South China Sea: Implications for regional tectonic activity | |
| Wang Dawei1,2; Wu Shiguo1,2; Qin Zhiliang3; Spence, George4; Lu Fuliang5; Wang, DW | |
| 2013-12-01 | |
| 发表期刊 | MARINE GEOLOGY
 |
| ISSN | 0025-3227 |
| 卷号 | 346页码:165-182 |
| 文章类型 | Article |
| 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.; 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. |
| 关键词 | Mass Transport Deposits Seismic Characteristics Qiongdongnan Basin South China Sea Red River Shear Zone |
| 学科领域 | Geology ; Oceanography |
| DOI | 10.1016/j.margeo.2013.09.003 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Geology ; Oceanography |
| WOS类目 | Geosciences, Multidisciplinary ; Oceanography |
| WOS记录号 | WOS:000328869900013 |
| WOS关键词 | CENTRAL VIETNAM ; XISHA TROUGH ; MARGIN ; EVOLUTION ; SYSTEM ; SUBSIDENCE ; HISTORY ; BASALTS ; GROWTH ; HAINAN |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/16317 |
| 专题 | 海洋地质与环境重点实验室 |
| 通讯作者 | Wang, DW |
| 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 |
| 第一作者单位 | 中国科学院海洋研究所 |
| 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,&Wang, DW.(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. |
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