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14C terrestrial ages of nine Antarctic meteorites using CO and CO2 temperature extractions
https://doi.org/10.15094/00004622
https://doi.org/10.15094/000046229baf064d-2258-4cac-966b-00ddb1fd0900
名前 / ファイル | ライセンス | アクション |
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KJ00000036428 (1.2 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1993-05-01 | |||||
タイトル | ||||||
タイトル | 14C terrestrial ages of nine Antarctic meteorites using CO and CO2 temperature extractions | |||||
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 | 10.15094/00004622 | |||||
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) |
Cresswell,Richard G.
× Cresswell,Richard G.× Miura,Yasunori× Beukens,Roelf P.× Rucklidge,John C. |
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著者所属(英) | ||||||
en | ||||||
Iso Trace Laboratory, University of Toronto/Department of Mineralogical Sciences and Geology, Yamaguchi University/Iso Trace Laboratory, University of Toronto/Iso Trace Laboratory, University of Toronto | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | As a continuation of the work reported in R. P. BEUKENS et al. (Proc. NIPR Symp. Antarct. Meteorites, 1,224,1988), a suite of Yamato and Trans-Antarctic Mountains meteorites have been analyzed for their ^<14>C content, to give an estimate of their terrestrial age. Further information on the samples' terrestrial history may be obtained from analysis of separate carbon species evolved at different temperatures. We report on data obtained from CO and CO_2 separations from a low temperature (500℃ to 900℃) and high temperature (≈1600℃) fraction from each sample. Three Allan Hills meteorites, ALH-77232 (H4), ALH-78112 (L6) and ALH-78130 (L6), give terrestrial ages >29000 years, and probably represent limit ages due to in situ production. Three other Trans-Antarctic meteorites, BTN-78002 (L6), MET-78028 (L6) and RKP-78002 (H4), give finite ^<14>C ages between 15000 and 27000 years. Three Yamato meteorites, Y-8011 (L6), Y-81132 (H5) and Y-82095 (L3), give ages between 16000 and 22000 years. The low temperature components indicate that recent weathering and atmospheric exchange has taken place for at least four (and possibly six) of the meteorites; ALH-78112,ALH-78130 and Y-81132 have low temperature activities that suggest an earlier exposure and weathering. | |||||
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 6, p. 381-390, 発行日 1993-05 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |