Thermal-history reconstruction of the Baiyun Sag in the deep-water area of the Pearl River Mouth Basin, northern South China Sea

doi:10.1007/s11707-017-0675-7

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

	Thermal-history reconstruction of the Baiyun Sag in the deep-water area of the Pearl River Mouth Basin, northern South China Sea
	Tang, Xiaoyin 1; Yang, Shuchun 2; Hu, Shengbiao 3
刊名	FRONTIERS OF EARTH SCIENCE
	2018-09-01
卷号	12 期号:3 页码:532-544
关键词	thermal history tectonic subsidence Baiyun Sag deep-water area South China Sea
ISSN号	2095-0195
DOI	10.1007/s11707-017-0675-7
英文摘要	The Baiyun Sag, located in the deep-water area of the northern South China Sea, is the largest and deepest subbasin in the Pearl River Mouth Basin and one of the most important hydrocarbon-accumulation depression areas in China. Thermal history is widely thought to be of great importance in oil and gas potential assessment of a basin as it controls the timing of hydrocarbon generation and expulsion from the source rock. In order to unravel the paleo-heat flow of the Baiyun Sag, we first analyzed tectonic subsidence of 55 pseudo-wells constructed based on newly interpreted seismic profiles, along with three drilled wells. We then carried out thermal modeling using the multi-stage finite stretching method and calibrated the results using collected present-day vitrinite reflectance data and temperature data. Results indicate that the first and second heating of the Baiyun Sag after 49 Ma ceased at 33.9 Ma and 23 Ma. Reconstructed average basal paleoheat flow values at the end of the rifting periods are similar to 57.7-86.2 mW/m(2) and similar to 66.7-97.3 mW/m(2), respectively. Following the last heating period at 23 Ma, the study area has undergone a persistent thermal attenuation phase, and basal heat flow has cooled down to similar to 64.0-79.2 mW/m(2) at present.
资助项目	National Natural Science Foundation of China[41602251] ; Chinese Postdoc Fund[58] ; Chinese Postdoc Fund[2015M582636] ; Research Fund for New Teachers of Xi'an Jiaotong University
WOS关键词	SURFACE HEAT-FLOW ; CONTINENTAL-MARGIN ; TECTONIC EVOLUTION ; CRUSTAL STRUCTURE ; EXTENSION ; SUBSIDENCE ; DEPTH ; QIONGDONGNAN ; MATURITY ; RECORDS
WOS研究方向	Geology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000444389400007
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Postdoc Fund ; Chinese Postdoc Fund ; Research Fund for New Teachers of Xi'an Jiaotong University ; Research Fund for New Teachers of Xi'an Jiaotong University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Postdoc Fund ; Chinese Postdoc Fund ; Research Fund for New Teachers of Xi'an Jiaotong University ; Research Fund for New Teachers of Xi'an Jiaotong University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Postdoc Fund ; Chinese Postdoc Fund ; Research Fund for New Teachers of Xi'an Jiaotong University ; Research Fund for New Teachers of Xi'an Jiaotong University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Chinese Postdoc Fund ; Chinese Postdoc Fund ; Research Fund for New Teachers of Xi'an Jiaotong University ; Research Fund for New Teachers of Xi'an Jiaotong University
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/88714]
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, Geothermal & Environm Res Lab, Xian 710049, Shaanxi, Peoples R China 2.CNOOC Res Inst, Beijing 100027, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Tang, Xiaoyin,Yang, Shuchun,Hu, Shengbiao. Thermal-history reconstruction of the Baiyun Sag in the deep-water area of the Pearl River Mouth Basin, northern South China Sea[J]. FRONTIERS OF EARTH SCIENCE,2018,12(3):532-544.
APA	Tang, Xiaoyin,Yang, Shuchun,&Hu, Shengbiao.(2018).Thermal-history reconstruction of the Baiyun Sag in the deep-water area of the Pearl River Mouth Basin, northern South China Sea.FRONTIERS OF EARTH SCIENCE,12(3),532-544.
MLA	Tang, Xiaoyin,et al."Thermal-history reconstruction of the Baiyun Sag in the deep-water area of the Pearl River Mouth Basin, northern South China Sea".FRONTIERS OF EARTH SCIENCE 12.3(2018):532-544.