Analysis of topography, heat flow against crustal age in the Southwest Subbasin, South China Sea

doi:10.1080/00206814.2019.1627587

CORC > 地质与地球物理研究所 > 中国科学院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

	Analysis of topography, heat flow against crustal age in the Southwest Subbasin, South China Sea
	Hu, Litian 1,2,3; Zhang, Peizhen 1,2; Hao, Tianyao 3; Tian, Yuntao 1,2; Zhang, Dongli 1,2; Li, Zhigang 1,2; Li, Xiaolin 1,2
刊名	INTERNATIONAL GEOLOGY REVIEW
	2019-06-15
页码	13
关键词	Southwest Subbasin South China Sea topography heat flow crustal age gravity magma
ISSN号	0020-6814
DOI	10.1080/00206814.2019.1627587
英文摘要	The relationships in ocean depth and heat flow with crustal age place valuable constraints on the thermal evolution of the oceanic lithosphere. This work aims to establish the relationships for the V-shaped Southwest Subbasin, the southwestern end of the South China Sea formed during 23.6-16 Ma. Using high-resolution multichannel seismic profiles and heat flow measurements, we calculate sediment-corrected topography and heat flow, which are then plotted against crustal age to establish their relationships. The results show that the post-spreading volcanism in the South China Sea influences less on the present-day heat flow than topography. In addition, the topography data are evidently deeper and heat flow data are much lower in the Southeast Asian marginal seas than other oceans. Previous explanation suggested that the abnormal features resulted from lateral heat loss, which would predict a deeper lithosphere-asthenosphere boundary and a high slope in topography and heat flow with age, contrary to the observations. Possible explanations for the abnormal features of the Southeast Asian marginal seas include (1) lack of long-time upwelling magma at the onset of spreading, and (2) reduced magma supply during the seafloor spreading.
资助项目	Guangdong Province Introduced Innovative R&D Team of Geological Processes and Natural Disasters around the South China Sea[2016ZT06N331] ; Key Laboratory of Ocean and Marginal Sea Geology, Chinese Academy of Sciences[OMG18-04] ; Chinese Academy of Sciences[Y4SL021001] ; National Natural Science Foundation of China[41606085] ; National Natural Science Foundation of China[91628301] ; National Natural Science Foundation of China[41174049]
WOS关键词	VELOCITY STRUCTURE ; GRAVITY ; DEPTH ; BATHYMETRY ; ELEVATION ; BASALTS ; MODEL
WOS研究方向	Geology
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000471799100001
资助机构	Guangdong Province Introduced Innovative R&D Team of Geological Processes and Natural Disasters around the South China Sea ; Guangdong Province Introduced Innovative R&D Team of Geological Processes and Natural Disasters around the South China Sea ; Key Laboratory of Ocean and Marginal Sea Geology, Chinese Academy of Sciences ; Key Laboratory of Ocean and Marginal Sea Geology, Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Introduced Innovative R&D Team of Geological Processes and Natural Disasters around the South China Sea ; Guangdong Province Introduced Innovative R&D Team of Geological Processes and Natural Disasters around the South China Sea ; Key Laboratory of Ocean and Marginal Sea Geology, Chinese Academy of Sciences ; Key Laboratory of Ocean and Marginal Sea Geology, Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Introduced Innovative R&D Team of Geological Processes and Natural Disasters around the South China Sea ; Guangdong Province Introduced Innovative R&D Team of Geological Processes and Natural Disasters around the South China Sea ; Key Laboratory of Ocean and Marginal Sea Geology, Chinese Academy of Sciences ; Key Laboratory of Ocean and Marginal Sea Geology, Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Province Introduced Innovative R&D Team of Geological Processes and Natural Disasters around the South China Sea ; Guangdong Province Introduced Innovative R&D Team of Geological Processes and Natural Disasters around the South China Sea ; Key Laboratory of Ocean and Marginal Sea Geology, Chinese Academy of Sciences ; Key Laboratory of Ocean and Marginal Sea Geology, Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/92545]
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
通讯作者	Hu, Litian; Li, Zhigang
作者单位	1.Sun Yat Sen Univ, Sch Earth Sci & Engn, Guangdong Prov Key Lab Geodynam & Geohazards, Guangzhou, Guangdong, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Hu, Litian,Zhang, Peizhen,Hao, Tianyao,et al. Analysis of topography, heat flow against crustal age in the Southwest Subbasin, South China Sea[J]. INTERNATIONAL GEOLOGY REVIEW,2019:13.
APA	Hu, Litian.,Zhang, Peizhen.,Hao, Tianyao.,Tian, Yuntao.,Zhang, Dongli.,...&Li, Xiaolin.(2019).Analysis of topography, heat flow against crustal age in the Southwest Subbasin, South China Sea.INTERNATIONAL GEOLOGY REVIEW,13.
MLA	Hu, Litian,et al."Analysis of topography, heat flow against crustal age in the Southwest Subbasin, South China Sea".INTERNATIONAL GEOLOGY REVIEW (2019):13.