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学科主题: Geosciences, Multidisciplinary
题名: Tectonic Evolution and Dynamics of Deepwater Area of Pearl River Mouth Basin, Northern South China Sea
作者: Dong, DD ; Zhang, GC ; Zhong, K ; Yuan, SQ ; Wu, SG
通讯作者: swu@ms.qdio.ac.cn
关键词: Pearl River Mouth basin ; South China Sea ; tectonic evolution ; dynamic mechanism ; stretching factor
刊名: JOURNAL OF EARTH SCIENCE
发表日期: 2009
卷: 20, 期:1, 页:147-159
收录类别: sci
部门归属: [Dong Dongdong; Yuan Shengqiang; Wu Shiguo] Chinese Acad Sci, Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao 266071, Peoples R China; [Dong Dongdong] Chinese Acad Sci, CAS Key Lab Marginal Sea Geol, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Zhang Gongcheng; Zhong Kai] CNOOC Res Ctr, Beijing 100027, Peoples R China; [Yuan Shengqiang] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China; [Wu Shiguo] China Univ Petr, Coll Georesource & Informat, Qingdao 266555, Peoples R China
项目归属: 海洋地质
摘要: Quantitative studies on the evolution and dynamics of the deepwater area of Pearl River Mouth basin (PRMB) were carried out based on the latest geological and seismic data. The study area is generally in an extensional state during the Cenozoic. The major extension happened in the earlier syn-rift stages before 23 Ma and the extension after 23 Ma is negligible. Two rapid subsidence periods, 32-23 Ma and 5.3-2.6 Ma, are identified, which are related to the abrupt heat decay during margin breakup and the collision between the Philippine Sea plate and the Eurasian plate, respectively. The strongest crustal thinning in the Baiyun (sic) sag may trigger the syn-rift volcanism along the weak faulted belt around the sag. The Cenozoic tectonic evolution of the study area could be divided into five stages: rifting (similar to 50-40 Ma), rift-drift transition (similar to 40-32 Ma), early post-breakup (similar to 32-23 Ma), thermal subsidence (similar to 23-5.3 Ma) and neotectonic movement (similar to 5.3-0 Ma).
原文出处: 查看原文
WOS记录号: WOS:000264753800015
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/4646
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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Recommended Citation:
Dong, DD; Zhang, GC; Zhong, K; Yuan, SQ; Wu, SG.Tectonic Evolution and Dynamics of Deepwater Area of Pearl River Mouth Basin, Northern South China Sea,JOURNAL OF EARTH SCIENCE,2009,20(1):147-159
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