Tectonic Evolution and Dynamics of Deepwater Area of Pearl River Mouth Basin, Northern South China Sea

IOCAS-IR

	Tectonic Evolution and Dynamics of Deepwater Area of Pearl River Mouth Basin, Northern South China Sea
	Dong DD(董冬冬); Zhang GC(张功成); Zhong K(钟锴); Yuan SQ(袁圣强); Wu SG(吴时国)
发表期刊	Journal of Earth Science
ISSN	1674-487X
	2009-02-15
出版年	2009
卷号	v.20 期号:01 页码:151-163
文献类型	CNKI期刊论文
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 (白云) 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 (～50-40 Ma), rift-drift transition (～40-32 Ma), early post-breakup (～32-23 Ma), thermalsubsidence (～23-5.3 Ma) and neotectonic move-ment (～5.3-0 Ma).
关键词	Pearl River Mouth basin, South China Sea, tectonic evolution, dynamic mecha-nism, stretching factor.
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A008;A010;
CNKI专题名称	自然地理学和测绘学;海洋学;
分类号	P737.15
语种	英文;
资助项目(基金）	supported jointly by the CAS Knowledge In-novation Program (No. KZCX2-YW-203) ; the National Basic Research Program of China (No. 2007CB411703) ; Key Labo-ratory of Marginal Sea Geology, Chinese Academy of Sciences (No. MSGL08-22) ; the MLR National Petroleum Resource Strategic Target Survey and Evaluation Program ; the Tai-shan Scholarship Program of Shandong Province
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/192714
专题	中国科学院海洋研究所
作者单位	1.KeyLaboratoryofMarineGeologyandEnvironment,InstituteofOceanology,ChineseAcademyofSciences,Qingdao266071,China 2.CASKeyLaboratoryofMarginalSeaGeology,SouthChinaSeaInstituteofOceanology,ChineseAcademyofSciences,Guangzhou510301,China 3.CNOOCResearchCenter,Beijng100027,China 4.GraduateUniversityofChineseAcademyofSciences,Beijing100049,China 5.CollegeofGeoresourceandInformation,ChinaUniversityofPetroleum,Qingdao266555,China
推荐引用方式 GB/T 7714	Dong DD,Zhang GC,Zhong K,et al. Tectonic Evolution and Dynamics of Deepwater Area of Pearl River Mouth Basin, Northern South China Sea. 2009.