Lithospheric thermal structure of the Pearl River Mouth Basin, northern South China Sea

doi:10.6038/cjg2018L0582

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 > 岩石圈演化国家重点实验室

	Lithospheric thermal structure of the Pearl River Mouth Basin, northern South China Sea
	Tang XiaoYin 1; Huang ShaoPeng 1; Zhang GongCheng 2; Yang ShuChun 2; Hu ShengBiao 3
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2018-09-01
卷号	61 期号:9 页码:3749-3759
关键词	Crustal-mantle heat flow Deep temperature Thickness of the thermal lithosphere Pearl River Mouth Basin
ISSN号	0001-5733
DOI	10.6038/cjg2018L0582
英文摘要	The lithospheric thermal structure is resulted from lithospheric tectono-thermal evolution. It provides fundamental constraints on thermal history reconstruction which is of great importance to basin dynamics investigation and hydrocarbon resources assessment. Due to the fact that conducting geological exploration offshore is much more difficult than inland, lithospheric thermal structure studies are less abundant in the continental margin basins than in the continental areas in China. In this study, we update the existing heat flow database of the Pearl River Mouth Basin of northern South China Sea with data published since 2003 to produce a new heat flow map for the study area. We further analyze the lithospheric thermal structure of the Pearl River Mouth Basin based on the updated heat flow database and the existing seismic crustal structure data acquired by the project "USA-China Joint Investigation on Marine Geology of South China Sea". Result shows that the crustal heat flow of the study area is 18. 7 similar to 28. 6 mW . m(-2), while the mantle heat flow ranges from 36. 9 to 91. 4 mW . m(-2). The ratio of crustal heat flow to mantle heat flow varies between 0. 23 and 0. 75. From the continental shelf area to the ocean-continental transition zone, the surface heat flow appears to increase while crustal heat flow decrease, implying that the mantle heat flow is the predominant contributor to the surface heat flow in the Pearl River Mouth Basin. The thermal lithospheric thickness of the study area turns out to be 34. 0 similar to 87. 2 km, with the average value of 65. 5 km, showing that the Pearl River Mouth Basin is of characteristics of lithosphere stretching and thinning.
WOS关键词	SURFACE HEAT-FLOW ; CONTINENTAL LITHOSPHERE ; ORDOS BASIN ; THICKNESS ; EVOLUTION ; MANTLE ; MARGIN ; TEMPERATURES ; SUBDUCTION ; TAIWAN
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000444791100022
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/88721]
专题	地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者	Tang XiaoYin
作者单位	1.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Shaanxi, Peoples R China 2.CNOOC Res Inst, Beijing 100027, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, State Kay Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Tang XiaoYin,Huang ShaoPeng,Zhang GongCheng,et al. Lithospheric thermal structure of the Pearl River Mouth Basin, northern South China Sea[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2018,61(9):3749-3759.
APA	Tang XiaoYin,Huang ShaoPeng,Zhang GongCheng,Yang ShuChun,&Hu ShengBiao.(2018).Lithospheric thermal structure of the Pearl River Mouth Basin, northern South China Sea.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,61(9),3749-3759.
MLA	Tang XiaoYin,et al."Lithospheric thermal structure of the Pearl River Mouth Basin, northern South China Sea".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 61.9(2018):3749-3759.