The noble gases in five ordinary chondrites from Grove Mountains in Antarctica
文献类型：期刊论文
| 作者 | Wang, Ying4; He, Huaiyu5; Leya, Ingo6; Ranjith, P. M.5; Su, Fei5; Stephenson, P. C.3,6; Zhang, Chuantong1,7; Zheng, Dewen2 |
| 刊名 | PLANETARY AND SPACE SCIENCE
 |
| 出版日期 | 2020-11-01 |
| 卷号 | 192页码:10 |
| 关键词 | Noble gases Ordinary chondrites Grove mountains Cosmic ray exposure ages Gas retention ages |
| ISSN号 | 0032-0633 |
| DOI | 10.1016/j.pss.2020.105045 |
| 英文摘要 | Here we present the abundances and isotopic compositions of the noble gases He, Ne, Ar, Kr, and Xe in five bulk ordinary chondrites from Antarctica, namely Grove Mountains (GRV)054472, GRV053690, GRV022403, GRV023149, and GRV052243. The cosmic ray exposure (CRE) ages of the three H chondrites GRV054472 (H3), GRV053690 (H4), and GRV022403 (H4) are 3.8 +/- 0.3 Ma, 5.9 +/- 0.4 Ma, and 16.6 +/- 1.5 Ma, respectively. This finding is consistent with peaks in the exposure age histogram for H chondrites 4 Ma and 7.2 Ma, respectively and also with the broad age cluster M 15-20 Ma, which is especially pronounced for H4 chondrites. The two L6 chondrites GRV023149 and GRV052243 are most likely paired with consistent exposure ages of 17.4 +/- 1.1 Ma and 17.6 +/- 1.5 Ma that both fall into the peak M 15 Ma for L6 chondrites. The two meteorites GRV054472 and GRV053690 show significant He-3 or H-3 diffusive losses of about 10% and 20-30%, respectively. The He-4 gas retention ages for the three H chondrites are in the range 1.09-3.18 Ga, showing different degrees of degassing either M a thermal event on the parent body or during cosmic ray exposure after the ejection from the parent body. The low gas retention ages for the two L6 chondrites based on (U-Th)/He systematics are 259 Ma (mean age of two aliquots) and 320 Ma or 364 Ma (mean age of two aliquots) and 307 Ma based on K-Ar system. These ages indicate significant gas loss during the catastrophic break-up of the L-chondrite parent body. Trapped Kr in GRV054472 and GRV053690-2 is almost pure Kr-Q. In addition, other meteorites also contain Q as trapped Kr, but have discernable cosmogenic Kr. The excess Kr-82 observed in GRV052243 and GRV022403 is due to the neutron capture on Br-81. Radiogenic Xe-129* from the decay of I-129 was observed in all studied chondrites. Measured Xe isotopes in all the studied chondrites predominantly shows Q component with minor contributions from the terrestrial atmosphere. For the samples GRV053690-2 and GRV023149-2, measured Xe falls on a mixing line with Xe-SW and Xe-HL, although the later component contributes very little. |
| WOS关键词 | RAY EXPOSURE AGES ; METEORITICAL BULLETIN ; MARTIAN METEORITES ; H CHONDRITES ; HISTORY ; CLASSIFICATION ; NEON ; AR-40-AR-39 ; COMPONENTS ; ORIGIN |
| 资助项目 | National Natural Science Foundation of China[41973054] ; National Natural Science Foundation of China[41425013] ; National Natural Science Foundation of China[41503064] ; special project of the fundamental scientific research of the institute of Geology, China Earthquake Administration[IGCEA1918] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000577193200003 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; special project of the fundamental scientific research of the institute of Geology, China Earthquake Administration ; special project of the fundamental scientific research of the institute of Geology, China Earthquake Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; special project of the fundamental scientific research of the institute of Geology, China Earthquake Administration ; special project of the fundamental scientific research of the institute of Geology, China Earthquake Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; special project of the fundamental scientific research of the institute of Geology, China Earthquake Administration ; special project of the fundamental scientific research of the institute of Geology, China Earthquake Administration ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; special project of the fundamental scientific research of the institute of Geology, China Earthquake Administration ; special project of the fundamental scientific research of the institute of Geology, China Earthquake Administration |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/98343]  |
| 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 | Wang, Ying |
| 作者单位 | 1.Guilin Univ Technol, Inst Meteorites & Planetary Mat Res, Guilin 541004, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China 3.Lawrence Livermore Natl Lab, Nucl & Chem Sci Div, Livermore, CA 94551 USA 4.China Earthquake Adm, State Key Lab Earthquake Dynam, Inst Geol, Yard 1, Beijing 100029, Peoples R China 5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 6.Univ Bern, Phys Inst, Space Sci & Planetol, Bern, Switzerland 7.Guilin Univ Technol, Key Lab Planetary Geol Evolut, Guilin 541004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Ying,He, Huaiyu,Leya, Ingo,et al. The noble gases in five ordinary chondrites from Grove Mountains in Antarctica[J]. PLANETARY AND SPACE SCIENCE,2020,192:10. |
| APA | Wang, Ying.,He, Huaiyu.,Leya, Ingo.,Ranjith, P. M..,Su, Fei.,...&Zheng, Dewen.(2020).The noble gases in five ordinary chondrites from Grove Mountains in Antarctica.PLANETARY AND SPACE SCIENCE,192,10. |
| MLA | Wang, Ying,et al."The noble gases in five ordinary chondrites from Grove Mountains in Antarctica".PLANETARY AND SPACE SCIENCE 192(2020):10. |
入库方式： OAI收割
来源：地质与地球物理研究所
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