Oceanic mantle gravimetric response to the seafloor spreading of the Southwest Sub-basin, South China Sea

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 中科院边缘海地质重点实验室

	Oceanic mantle gravimetric response to the seafloor spreading of the Southwest Sub-basin, South China Sea
	Lu, Chuanchuan; Hao, Tianyao; Yao, Yongjian; Xing, Jian; Qiu, Xuelin
刊名	GEOLOGICAL JOURNAL
	2016
卷号	51 页码:535-547
关键词	South China Sea residual mantle gravity anomaly oceanic mantle basement structure flexural isostasy analysis
通讯作者	Lu, CC (reprint author), Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China.
中文摘要	The residual mantle gravity anomaly (RMA) is a straightforward response of the deep mantle structure of the lithosphere. We acquired RMA from newly updated free-air gravity anomaly by incorporating abundant geophysical evidences, such as the International Ocean Drilling Program expedition 349, the interpretation of 10 seismic profiles and the bathymetric data in the Southwest Sub-basin (SWSB) of the South China Sea. By inverting the crustal thickness by the application of the isostatic flexure analysis, comparing with ocean bottom seismic tomography result, then determining a detail crustal thickness of the study region, we calculated the RMA of the oceanic basin in the SWSB. The main features of the RMA and their relation to the palaeo-spreading pattern are discussed, and the implications of the asymmetric lithospheric deformation due to variations in melt extraction are proposed. In the light of the asymmetric RMA at the north and south sides of the fossil spreading centre in the SWSB, we preferred asymmetric melt retention depth and extraction rate changes during the oceanic lithosphere creation of the South China Sea. Copyright (c) 2016 John Wiley & Sons, Ltd.
学科主题	Geology
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/15331]
专题	南海海洋研究所_中科院边缘海地质重点实验室
推荐引用方式 GB/T 7714	Lu, Chuanchuan,Hao, Tianyao,Yao, Yongjian,et al. Oceanic mantle gravimetric response to the seafloor spreading of the Southwest Sub-basin, South China Sea[J]. GEOLOGICAL JOURNAL,2016,51:535-547.
APA	Lu, Chuanchuan,Hao, Tianyao,Yao, Yongjian,Xing, Jian,&Qiu, Xuelin.(2016).Oceanic mantle gravimetric response to the seafloor spreading of the Southwest Sub-basin, South China Sea.GEOLOGICAL JOURNAL,51,535-547.
MLA	Lu, Chuanchuan,et al."Oceanic mantle gravimetric response to the seafloor spreading of the Southwest Sub-basin, South China Sea".GEOLOGICAL JOURNAL 51(2016):535-547.