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

文献类型：期刊论文

作者Lu, Chuanchuan1; Hao, Tianyao1; Yao, Yongjian2; Xing, Jian1; Qiu, Xuelin3
刊名GEOLOGICAL JOURNAL
出版日期2016-08-01
卷号51页码:535-547
关键词South China Sea residual mantle gravity anomaly oceanic mantle basement structure flexural isostasy analysis
DOI10.1002/gj.2799
文献子类Article
英文摘要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.
WOS关键词MID-ATLANTIC RIDGE ; REGIONAL-RESIDUAL SEPARATION ; IODP EXPEDITION 349 ; EAST PACIFIC RISE ; GRAVITY-ANOMALIES ; CRUSTAL THICKNESS ; MIDOCEAN RIDGES ; TECTONIC STRUCTURE ; RATE DEPENDENCE ; HEAT-FLOW
WOS研究方向Geology
语种英语
WOS记录号WOS:000383513600037
资助机构Natural Science Foundation of China (NSFC)(41476033 ; Natural Science Foundation of China (NSFC)(41476033 ; 41404050 ; 41404050 ; U1505232 ; U1505232 ; 41576068 ; 41576068 ; 41404073 ; 41404073 ; 41276029) ; 41276029) ; Natural Science Foundation of China (NSFC)(41476033 ; Natural Science Foundation of China (NSFC)(41476033 ; 41404050 ; 41404050 ; U1505232 ; U1505232 ; 41576068 ; 41576068 ; 41404073 ; 41404073 ; 41276029) ; 41276029)
源URL[http://ir.iggcas.ac.cn/handle/132A11/53351]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
2.China Geol Survey, Guangzhou Marine Geol Survey, Guangzhou 510075, Guangdong, Peoples R China
3.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China
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.

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来源：地质与地球物理研究所

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