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

文献类型：期刊论文

作者Wu, Lin1,2; Shi, Guanghai3; Danisik, Martin4; Zhang, Zhiyong1,2; Wang, Yinzhi1,2; Wang, Fei1,2,5
刊名GEOSTANDARDS AND GEOANALYTICAL RESEARCH
出版日期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
DOI10.1111/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.
WOS关键词ZIRCON REFERENCE MATERIAL ; CENOZOIC TECTONIC EVENTS ; MOGOK METAMORPHIC BELT ; FISSION-TRACK ; NORTHWARD MIGRATION ; SHAN SCARP ; MYANMAR ; DURANGO ; THERMOCHRONOMETRY ; EVIDENCES
资助项目National Natural Science Foundation of China (NSFC)[41503055] ; National Natural Science Foundation of China (NSFC)[41673015]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000468101400007
出版者WILEY
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)
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.

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来源：地质与地球物理研究所

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