MK-1 Apatite: A New Potential Reference Material for (U-Th)/He Dating

doi:10.1111/ggr.12258

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

	MK-1 Apatite: A New Potential Reference Material for (U-Th)/He Dating
	Wu, Lin 1,2; Shi, Guanghai 3; Danisik, Martin 4; Zhang, Zhiyong 1,2; Wang, Yinzhi 1,2; Wang, Fei 1,2,5
刊名	GEOSTANDARDS AND GEOANALYTICAL RESEARCH
	2019-06-01
卷号	43 期号:2 页码:301-315
关键词	MK-1 apatite megacryst Mogok belt reference material (U-Th) He geochronology
ISSN号	1639-4488
DOI	10.1111/ggr.12258
英文摘要	The (U-Th)/He dating technique has been widely used for several decades to constrain the timing of low temperature geological processes. Recent research has shown that the commonly used reference material (the Durango apatite) often yields dispersed fragment dates that are beyond analytical uncertainties. Here, we report a new apatite (U-Th)/He dating reference material, MK-1, which was collected from the Mogok metamorphic belt in Burma. Electron probe microanalysis and backscattered electron images of two randomly selected fragments indicate that this apatite is chemically and structurally homogeneous. We performed single-grain (U-Th)/He dating on thirty randomly selected fragments of this material. (U-Th)/He dating results from multiple laboratories show that fragments of the MK-1 apatite megacryst yielded reproducible results, with a mean date of 18.0 +/- 0.2Ma. The Th/U ratio of this apatite is homogeneous. Nine randomly selected fragments registered a narrow range of effective uranium (eU) mass fractions (326-354gg(-1)), with a mean value of 336.6 +/- 10.3gg(-1). Twenty-four insitu (U-Th)/He dates yielded a mean value of 18.0 +/- 0.2Ma (MSWD=0.41), indistinguishable from the results obtained by the conventional method. All the results suggest that this apatite has the potential to become a new reference material for (U-Th)/He geochronology.
资助项目	National Natural Science Foundation of China (NSFC)[41503055] ; National Natural Science Foundation of China (NSFC)[41673015]
WOS关键词	ZIRCON REFERENCE MATERIAL ; CENOZOIC TECTONIC EVENTS ; MOGOK METAMORPHIC BELT ; FISSION-TRACK ; NORTHWARD MIGRATION ; SHAN SCARP ; MYANMAR ; DURANGO ; THERMOCHRONOMETRY ; EVIDENCES
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	WILEY
WOS记录号	WOS:000468101400007
资助机构	National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/92107]
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	Wu, Lin
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China 3.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China 4.Curtin Univ, John de Laeter Ctr, Inst Geosci Res, Dept Appl Geol Appl Phys, Perth, WA 6012, Australia 5.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wu, Lin,Shi, Guanghai,Danisik, Martin,et al. MK-1 Apatite: A New Potential Reference Material for (U-Th)/He Dating[J]. GEOSTANDARDS AND GEOANALYTICAL RESEARCH,2019,43(2):301-315.
APA	Wu, Lin,Shi, Guanghai,Danisik, Martin,Zhang, Zhiyong,Wang, Yinzhi,&Wang, Fei.(2019).MK-1 Apatite: A New Potential Reference Material for (U-Th)/He Dating.GEOSTANDARDS AND GEOANALYTICAL RESEARCH,43(2),301-315.
MLA	Wu, Lin,et al."MK-1 Apatite: A New Potential Reference Material for (U-Th)/He Dating".GEOSTANDARDS AND GEOANALYTICAL RESEARCH 43.2(2019):301-315.