| 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, Wei3; Wu, Shiguo4
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| 2015-03-07 | |
| 发表期刊 | TECTONOPHYSICS
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| 卷号 | 643页码:1-7 |
| 文章类型 | Article |
| 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. |
| 关键词 | Continental Margins South China Sea Mass-transport Deposits Faults Burial Depth Petroleum Plays |
| DOI | 10.1016/j.tecto.2014.12.006 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000350836000001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/25420 |
| 专题 | 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 |
| 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 | 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. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Recurrent slope fail（3919KB） | 期刊论文 | 出版稿 | 限制开放 | ODC PDDL | 浏览 | |
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