Preservation of Re-Os isotope signatures in pyrite throughout low-T, high-P eclogite facies metamorphism

doi:10.1111/ter.12113

	Preservation of Re-Os isotope signatures in pyrite throughout low-T, high-P eclogite facies metamorphism
	van Acken, David 1; Su, Wen 2; Gao, Jun 2; Creaser, Robert A.1
刊名	TERRA NOVA
	2014-10-01
卷号	26 期号:5 页码:402-407
ISSN号	0954-4879
DOI	10.1111/ter.12113
文献子类	Article
英文摘要	Pyrite in LT-HP eclogites from the western Tianshan orogenic belt yields a Re-Os age of 378.1 +/- 8.9 Ma, which is 30-70 Ma older than ages previously obtained for the same rocks using the Rb-Sr, Sm-Nd, Ar-Ar, U-Pb, and Lu-Hf isotope systems. The Tianshan LT-HP eclogite experienced temperatures of up to similar to 570 degrees C combined with pressures of up to 2.1 GPa during metamorphism. These conditions are below the transition of pyrite to pyrrhotite, which defines both pyrite stability and possibly its closure temperature for Re-Os. Pyrite can preserve Re-Os signatures through eclogite facies peak metamorphic conditions, and thus allow determination of the formation age of pyrite in the protolith.
WOS关键词	WESTERN TIANSHAN MOUNTAINS ; FLUID-ROCK INTERACTION ; HP-LT ROCKS ; NW-CHINA ; AGE CONSTRAINTS ; GOLD DEPOSIT ; U-PB ; TECTONIC IMPLICATIONS ; SUBDUCTION CHANNEL ; HIGH-TEMPERATURE
WOS研究方向	Geology
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000341254900009
资助机构	National Basic Research Program of China(2009CB825001) ; National Basic Research Program of China(2009CB825001) ; NNSFC(41172066 ; NNSFC(41172066 ; NSERC ; NSERC ; 40872059) ; 40872059) ; National Basic Research Program of China(2009CB825001) ; National Basic Research Program of China(2009CB825001) ; NNSFC(41172066 ; NNSFC(41172066 ; NSERC ; NSERC ; 40872059) ; 40872059) ; National Basic Research Program of China(2009CB825001) ; National Basic Research Program of China(2009CB825001) ; NNSFC(41172066 ; NNSFC(41172066 ; NSERC ; NSERC ; 40872059) ; 40872059) ; National Basic Research Program of China(2009CB825001) ; National Basic Research Program of China(2009CB825001) ; NNSFC(41172066 ; NNSFC(41172066 ; NSERC ; NSERC ; 40872059) ; 40872059)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/86038]
专题	中国科学院地质与地球物理研究所
通讯作者	van Acken, David
作者单位	1.Univ Alberta, Dept Earth & Atmospher Sci, Edmonton, AB T6G 2E3, Canada 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	van Acken, David,Su, Wen,Gao, Jun,et al. Preservation of Re-Os isotope signatures in pyrite throughout low-T, high-P eclogite facies metamorphism[J]. TERRA NOVA,2014,26(5):402-407.
APA	van Acken, David,Su, Wen,Gao, Jun,&Creaser, Robert A..(2014).Preservation of Re-Os isotope signatures in pyrite throughout low-T, high-P eclogite facies metamorphism.TERRA NOVA,26(5),402-407.
MLA	van Acken, David,et al."Preservation of Re-Os isotope signatures in pyrite throughout low-T, high-P eclogite facies metamorphism".TERRA NOVA 26.5(2014):402-407.