Radiogenic heat production in the lithosphere of Sulu ultrahigh-pressure metamorphic belt

doi:10.1016/j.epsl.2008.11.022

	Radiogenic heat production in the lithosphere of Sulu ultrahigh-pressure metamorphic belt
	He, Lijuan 1; Hu, Shengbiao 1; Yang, Wencai 2; Wang, Jiyang 1
刊名	EARTH AND PLANETARY SCIENCE LETTERS
	2009-01-30
卷号	277 期号:3-4 页码:525-538
关键词	radiogenic heat production CCSD Sulu UHPM belt thermal structure
ISSN号	0012-821X
DOI	10.1016/j.epsl.2008.11.022
文献子类	Article
英文摘要	The Chinese Continental Scientific Drilling (CCSD) project is located at the Sulu ultrahigh-pressure metamorphic (UHPM) belt. It offers a unique opportunity for studying the radiogenic heat production of both shallower and deeper rocks. Based on the concentrations of radiogenic elements U, Th and K on 349 samples from main hole of CCSD (CCSD MH), pilot holes and exposures, we determined radiogenic heat productions of all major rock types in the Sulu UHPM belt. Results show the mean values of orthogneiss and paragneiss are respectively 1.65 +/- 0.81 and 1.24 +/- 0.61 mu W m(-3). Due to different composition and grade of retrogressive metamorphism, the eclogites display significant scatter in radiogenic heat production, ranging from 0.01 to 2.85 mu W m(-3), with a mean of 0.44 +/- 0.55 mu W m(-3). The radiogenic heat production in ultramafic rocks also varies within a large range of 0.02 to 1.76 mu W m(-3), and the average turns out to be 0.18 +/- 0.31 mu W m(-3). Based on the measurements and crustal petrologic model, the vertical distribution model of heat production in Sulu crust is established. The resulting mean heat production (0.76 mu W m(-3)) contributes 24 mW m(-2) to the surface heat flow. 1-D thermal model indicates that the temperature at the Moho reaches above 750 degrees C, and the thermal thickness of the lithosphere is similar to 75 km, in good agreement with the geophysical results. The high teat flow (similar to 75 mW m(-2)) together with thin lithosphere presents strong support for the extension events during the late Cretaceous and Cenozoic. (C) 2008 Elsevier B.V. All rights reserved.
WOS关键词	SCIENTIFIC DRILLING PROJECT ; SUBDUCTED CONTINENTAL-CRUST ; SOUTH-CHINA BLOCKS ; EAST-CENTRAL CHINA ; MAIN HOLE ; THERMAL STRUCTURE ; DABIE MOUNTAINS ; GEOCHEMICAL CHARACTERISTICS ; SEISMIC VELOCITY ; FLUID INCLUSION
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000263208800024
资助机构	National Key Basic RD Program 973(2003CB716505) ; National Key Basic RD Program 973(2003CB716505) ; National Key Basic RD Program 973(2003CB716505) ; National Key Basic RD Program 973(2003CB716505) ; National Key Basic RD Program 973(2003CB716505) ; National Key Basic RD Program 973(2003CB716505) ; National Key Basic RD Program 973(2003CB716505) ; National Key Basic RD Program 973(2003CB716505) ; National Key Basic RD Program 973(2003CB716505) ; National Key Basic RD Program 973(2003CB716505) ; National Key Basic RD Program 973(2003CB716505) ; National Key Basic RD Program 973(2003CB716505) ; National Key Basic RD Program 973(2003CB716505) ; National Key Basic RD Program 973(2003CB716505) ; National Key Basic RD Program 973(2003CB716505) ; National Key Basic RD Program 973(2003CB716505)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/71324]
专题	中国科学院地质与地球物理研究所
通讯作者	He, Lijuan
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China
推荐引用方式 GB/T 7714	He, Lijuan,Hu, Shengbiao,Yang, Wencai,et al. Radiogenic heat production in the lithosphere of Sulu ultrahigh-pressure metamorphic belt[J]. EARTH AND PLANETARY SCIENCE LETTERS,2009,277(3-4):525-538.
APA	He, Lijuan,Hu, Shengbiao,Yang, Wencai,&Wang, Jiyang.(2009).Radiogenic heat production in the lithosphere of Sulu ultrahigh-pressure metamorphic belt.EARTH AND PLANETARY SCIENCE LETTERS,277(3-4),525-538.
MLA	He, Lijuan,et al."Radiogenic heat production in the lithosphere of Sulu ultrahigh-pressure metamorphic belt".EARTH AND PLANETARY SCIENCE LETTERS 277.3-4(2009):525-538.