Cosmic-ray exposure histories of two Antarctic meteorites from Chinese collections and the Guangmingshan and Zhuanghe chondrites
文献类型：期刊论文
| 作者 | Wang, DD; Lin, YT; Liu, XH; Ju, YT |
| 刊名 | SCIENCE IN CHINA SERIES D-EARTH SCIENCES
 |
| 出版日期 | 2003-12-01 |
| 卷号 | 46期号:12页码:1236-1240 |
| 关键词 | chondrite noble gas cosmic-ray exposure age |
| ISSN号 | 1006-9313 |
| DOI | 10.1360/03yd0060 |
| 文献子类 | Article |
| 英文摘要 | Concentrations of noble gases of two Antarctic meteorites (GRV 98002, 98004) from Chinese collections, and the Guangmingshan and Zhuanghe chondrites were measured. Based on the petrography and mineralogy of these meteorites, and production rates of the cosmogenic nuclides, we calculated cosmic-ray exposure and gas retention ages of the four chondrites. Exposure ages of the four chondrites are 0.052 Ma +/- 0.008 Ma (GRV 98004, H5), 17.0 Ma +/- 2.5 Ma (GRV98002, L5), 3.8 Ma +/- 0.6 Ma (Zhuanghe, H5), and 68.9 Ma +/- 10 Ma (Guangmingshan, H5), respectively. The exposure age of GRV 98004 is the lowest value of Antarctic meteorites reported up to date; while that of Guangmingshan is higher than other Chinese meteorites of H-group. Both GRV 98002 and Zhuanghe have low He-4 concentrations, probably due to shock effects or solar heating at orbits with small perihelion distances during cosmic-ray exposure. On the other hand, losses of cosmogenic He-3 and He-4 are correlated with both GRV 98002 and Guangmingshan. |
| WOS关键词 | AGES ; GAS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000186314200004 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/78707]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wang, DD |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, DD,Lin, YT,Liu, XH,et al. Cosmic-ray exposure histories of two Antarctic meteorites from Chinese collections and the Guangmingshan and Zhuanghe chondrites[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2003,46(12):1236-1240. |
| APA | Wang, DD,Lin, YT,Liu, XH,&Ju, YT.(2003).Cosmic-ray exposure histories of two Antarctic meteorites from Chinese collections and the Guangmingshan and Zhuanghe chondrites.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,46(12),1236-1240. |
| MLA | Wang, DD,et al."Cosmic-ray exposure histories of two Antarctic meteorites from Chinese collections and the Guangmingshan and Zhuanghe chondrites".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 46.12(2003):1236-1240. |
入库方式： OAI收割
来源：地质与地球物理研究所
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