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The chemical composition of the samples from Y-86032,Y-82192,and Y-82193 is uniform for most major elements but not for all minor and trace elements, probably due to inhomogeneity of the source material. 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Ages, noble gas isotopes, oxygen isotopes and chemical abundances", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Preliminary report on the Yamato-86032 lunar meteorite: III. Ages, noble gas isotopes, oxygen isotopes and chemical abundances"}]}, "item_type_id": "1", "owner": "4", "path": ["586"], "permalink_uri": "https://doi.org/10.15094/00004476", "pubdate": {"attribute_name": "公開日", "attribute_value": "1989-10-01"}, "publish_date": "1989-10-01", "publish_status": "0", "recid": "4476", "relation": {}, "relation_version_is_last": true, "title": ["Preliminary report on the Yamato-86032 lunar meteorite: III. Ages, noble gas isotopes, oxygen isotopes and chemical abundances"], "weko_shared_id": 4}
Preliminary report on the Yamato-86032 lunar meteorite: III. Ages, noble gas isotopes, oxygen isotopes and chemical abundances
https://doi.org/10.15094/00004476
https://doi.org/10.15094/00004476234a7f89-22ae-49be-b1a4-d81a6197539d
名前 / ファイル | ライセンス | アクション |
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KJ00000036282 (2.1 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1989-10-01 | |||||
タイトル | ||||||
タイトル | Preliminary report on the Yamato-86032 lunar meteorite: III. Ages, noble gas isotopes, oxygen isotopes and chemical abundances | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15094/00004476 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Eugster, Otto
× Eugster, Otto× Niedermann, Samuel× Burger, Mario× Krahenbuhl, Urs× Weber, Hartwig× Clayton, Robert N.× Mayeda, Toshiko K. |
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著者所属(英) | ||||||
en | ||||||
Physikalisches Institute, University of Bern/Physikalisches Institute, University of Bern/Anorganisch chemisches Institute, University of Bern/Anorganisch chemisches Institute, University of Bern/Max-Plank-Institute fur Chemie/Enrico Fermi Institute, Department of Chemistry and Department of Geophysical Sciences,University of Chicago/Enrico Fermi Institute, Department of Chemistry and Department of Geophysical Sciences,University of Chicago | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The isotope abundances of He, Ne, Ar, Kr, and Xe, including ^<81>Kr, the oxygen isotopic composition, and the concentrations of Na, K, Sc, Ti, Cr, Fe, Co, Y, Zr, La, Sm, Eu, Hf, Ta, and W were determined for the lunar meteorite Yamato-86032. Based on the radionuclide ^<81>Kr we obtain a terrestrial age of 72000±30000 years, whereas the cosmic-ray exposure age is 10.6±0.6 Ma assuming exposure of the meteorite as a small object in space. Exposure to cosmic rays occurred at shallow shielding of about 40g/cm^2. The K-Ar gas retention ages of two separate splits are 3680±300 Ma and 3810±400 Ma, respectively. All ages agree with those for the lunar meteorites Y-82192 and Y-82193 recovered in the same area on the antarctic ice. The small amounts of trapped solar wind noble gases indicate that the Y-86032 material was exposed only briefly, some grains perhaps not at all, to the solar wind. The concentrations are similar to those of the Yamato-82 lunar meteorites. The oxygen isotopic composition is within the range of that for lunar rocks. The chemical composition of the samples from Y-86032,Y-82192,and Y-82193 is uniform for most major elements but not for all minor and trace elements, probably due to inhomogeneity of the source material. From the fact that the history of Y-86032 is the same as that of Y-82192/3 we conclude that these three rocks are pieces of the same meteorite fall. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10784627 | |||||
書誌情報 |
Proceedings of the NIPR Symposium on Antarctic Meteorites 巻 2, p. 25-35, 発行日 1989-10 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |