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Experimental evidence for the dynamics of the formation of the Yinggehai basin, NW South China Sea
Sun, Z; Zhou, D; Zhong, ZH; Zeng, ZX; Wu, SM
2003
发表期刊TECTONOPHYSICS
ISSN0040-1951
卷号372期号:40545页码:41-58
摘要The Yinggehai basin is located on the northwestern shelf of the South China Sea. It is the seaward elongation of the Red River Fault Zone (RRFZ). The orientation and rift shape of the Yinggehai basin are mainly controlled by NW-, NNW- and nearly NS-trending basal faults. The depocenter migrated southeastward when the basin developed. The depocenter trended northwest before about 36 Ma, then jumped southward and became nearly N-S trending and migrated toward the southeast up to 21 Ma; thereafter, the depocenter trended northwest again. Based on above and structural evolution in neighbor areas, it is believed that the Yinggehai basin formation was mainly controlled by the extrusion accompanied by clockwise rotation of Indochina. We set up analogue models (thin basal plate model and thick basal plate model) to investigate the evolution of Yinggehai basin. From the experiments, we consider that the basin evolution was related to the extrusion and clockwise rotation of the Indochina block, which was caused by the collision of the Indian plate and Tibet. This process took place in four main stages: (1) Slow rifting stage (before 36 Ma) with a NW-trending depocenter; (2) rifting stage formed by sinistral slip of the Indochina block accompanied by rapid clockwise rotation between 36 and 21 Ma; (3) rifting-thermal subsidence stage affected by sinistral slip of the Indochina (21-5 Ma) block and (4) dextral strike-slip (5-0 Ma). (C) 2003 Elsevier B.V. All rights reserved.
部门归属Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Peoples R China; Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China; China Univ Geosci, Fac Earth Sci, Wuhan 430074, Peoples R China
关键词Yinggehai Basin Rifting Structure Depocenter Migration Analogue Modeling Dynamics Of Basin Formation
学科领域Geochemistry & Geophysics
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收录类别sci
资助项目海洋地质
WOS记录号WOS:000185448000003
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被引频次:56[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/4752
专题中科院边缘海地质重点实验室
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Sun, Z,Zhou, D,Zhong, ZH,et al. Experimental evidence for the dynamics of the formation of the Yinggehai basin, NW South China Sea[J]. TECTONOPHYSICS,2003,372(40545):41-58.
APA Sun, Z,Zhou, D,Zhong, ZH,Zeng, ZX,&Wu, SM.(2003).Experimental evidence for the dynamics of the formation of the Yinggehai basin, NW South China Sea.TECTONOPHYSICS,372(40545),41-58.
MLA Sun, Z,et al."Experimental evidence for the dynamics of the formation of the Yinggehai basin, NW South China Sea".TECTONOPHYSICS 372.40545(2003):41-58.
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