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The late Cenozoic deep-water channel system in the Baiyun Sag, Pearl River Mouth Basin: Development and tectonic effects
Ma, Benjun1,2; Wu, Shiguo3; Sun, Qiliang1; Mi, Lijun4; Wang, ZhenZhen1; Tian, Jie1,2
2015-12-01
发表期刊DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
卷号122期号:2015页码:226-239
文章类型Article
摘要Twenty modern submarine channels and buried channels were examined using high-resolution 3D/2D seismic data in the Baiyun Sag, Pearl River Mouth Basin. The channels were dominantly straight, sub-parallel with one another, and oriented perpendicular to the slope contours. Four stages of the deep-water channel system (DCS) were identified according to seismic facies and spatial distribution. The stages were controlled by sediment input and tectonic activities. DCS I is distributed in the middle of the Baiyun Sag, with small individual channels. DCS II expanded because of decreasing sediment input and stable subsidence of the Baiyun Sag increased the slope. DCS III had the broadest distribution and nearly covered the entire Baiyun Sag. Further decreases in sediment input and the Dongsha Event increased the gravity flow domain and greatly promoted the development of the DCS. DCS IV narrowed to the southwest because the buried channels in the northeastern Baiyun Sag ceased after 5.5 Ma as the result of active fault activity. This study highlights that the channel system plays an important role in recording the sedimentary evolution of the Pearl River Mouth Basin and affects the deep-water resource (hydrocarbon and gas hydrate) distribution. (C) 2015 Elsevier Ltd. All rights reserved.
关键词Deep-water Channel Active Fault Turbidity Deposits Deep-water Sedimentation Pearl River Mouth Basin
DOI10.1016/j.dsr2.2015.06.015
收录类别SCI
语种英语
WOS记录号WOS:000367106500020
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文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/86633
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.UCAS, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
4.China Natl Offshore Oil Corp, Shenzhen Branch, Guangzhou 510420, Guangdong, Peoples R China
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Ma, Benjun,Wu, Shiguo,Sun, Qiliang,et al. The late Cenozoic deep-water channel system in the Baiyun Sag, Pearl River Mouth Basin: Development and tectonic effects[J]. DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,2015,122(2015):226-239.
APA Ma, Benjun,Wu, Shiguo,Sun, Qiliang,Mi, Lijun,Wang, ZhenZhen,&Tian, Jie.(2015).The late Cenozoic deep-water channel system in the Baiyun Sag, Pearl River Mouth Basin: Development and tectonic effects.DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY,122(2015),226-239.
MLA Ma, Benjun,et al."The late Cenozoic deep-water channel system in the Baiyun Sag, Pearl River Mouth Basin: Development and tectonic effects".DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY 122.2015(2015):226-239.
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