MK-1 Apatite: A New Potential Reference Material for (U-Th)/He Dating | |
Wu, Lin1,2; Shi, Guanghai3; Danisik, Martin4; Zhang, Zhiyong1,2; Wang, Yinzhi1,2; Wang, Fei1,2,5 | |
刊名 | GEOSTANDARDS AND GEOANALYTICAL RESEARCH
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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. |
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