Thermal history and tectonic-thermal evolution of Bohai Basin, East China

	Thermal history and tectonic-thermal evolution of Bohai Basin, East China
	Hu, SB ; Zhang, RY ; Luo, YH ; Cai, DS
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	1999-11-01
卷号	42 期号:6 页码:748-755
关键词	Bohai Basin heat flow thermal history reconstruction structural subsidence tectonothermal evolution
ISSN号	0001-5733
文献子类	Article
英文摘要	Heat flow measurements and thermal history reconstruction, from inversion of apatite and vitrinite reflectance data, indicate that Bohai Basin is characterized by lower present-day heat flow varying between 50 and 75mW / m(2) with a background heat flow value of 63.6mW / m(2), and that the basin experienced a much higher heat flow (70-90mW / m(2)) period prior to about 25Ma. Structural subsidence analysis shows that the subsidence of Bohai Basin, consisted of East Liao Bay and Bohai areas, can be divided into two phases: earlier(25-50Ma) initial (rift) and later (since 25Ma) thermal subsidence. The earlier rift phase is composed of two sub-rift episodes with quick subsidence, and the later thermal subsidence was superimposed with rapid subsidence related to crustal isostasy induced by higher density mantle and cooling of the lithosphere. The lower present-day heat flow and the higher palaeo-heat flow corresponding to structural subsidence stage as well as the typical rift subsidence style in Bohai Basin support its feature of intraplate, rift basin, and provided with some insight to the tectonic-thermal evolution of the basin.
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000084411600004
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/75592]
专题	中国科学院地质与地球物理研究所
通讯作者	Hu, SB
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Bohai Oil Corp, Res Inst, Tianjin 300452, Peoples R China
推荐引用方式 GB/T 7714	Hu, SB,Zhang, RY,Luo, YH,et al. Thermal history and tectonic-thermal evolution of Bohai Basin, East China[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,1999,42(6):748-755.
APA	Hu, SB,Zhang, RY,Luo, YH,&Cai, DS.(1999).Thermal history and tectonic-thermal evolution of Bohai Basin, East China.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,42(6),748-755.
MLA	Hu, SB,et al."Thermal history and tectonic-thermal evolution of Bohai Basin, East China".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 42.6(1999):748-755.