Rb-Sr age of an impact event recorded in Yamato-791088 H chondrite
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概要
- 論文の詳細を見る
The age of the impact event is recorded in Yamato(Y)-791088,a high-iron type chondrite and has been dated using the Rb-Sr chronometer. A brief mineralogical characterization was made of the chondrite as well. The obtained impact age is 1024±47Ma. When Y-791088 recorded the impact event, it might not have been on the surface of the parent body, but rather deep. Therefore, some sulfide was not vaporized and Rb was not lost during the impact. Metal phases were once homogenized and plessite, consisting of two phases, is really scarce. After the impact, the parental body could not have lasted long before separating into pieces.
- 国立極地研究所の論文
著者
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KOJIMA Hideyasu
National Institute of Polar Research
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Yanai Keizo
National Institute of Polar Research
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Fujimaki Hirokazu
Institute Of Mineralogy Petrology And Economic Geology Faculty Of Science Tohoku University
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Fujimaki Hirokazu
Institute Of Mineralogy Petrology And Econimic Geology Faculty Of Science Tohoku University
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Aoki Ken-ichiro
Institute Of Mineralogy Petrology And Economic Geology Tohoku University
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Aoki Ken-ichiro
Institute Of Mineralogy Petrology And Economic Geology Faculty Of Science Tohoku University
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Fujimaki H
Tohoku Univ. Sendai Jpn
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Fujimaki Hirokazu
Institute Of Mineralogy Petrology And Economic Geology Tohoku University
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Yanai K
Iwate Univ. Morioka
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Ishikawa Ken-ichi
College of General Education, Tohoku University
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Kojima Hideyasu
Department Of Meteorites National Institute Of Polar Research
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Ishikawa Ken-ichi
Institute Of Mineralogy Petrology And Economic Geology Tohoku University
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