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Mare basalt and other clasts in Yamato lunar meteorites Y-791197, -82192 and -82193
https://nipr.repo.nii.ac.jp/records/2120
https://nipr.repo.nii.ac.jp/records/21208eb34fd7-0052-47e3-be13-659cdaba9dc3
名前 / ファイル | ライセンス | アクション |
---|---|---|
KJ00000012673 (1.7 MB)
|
Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 1987-03-01 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Mare basalt and other clasts in Yamato lunar meteorites Y-791197, -82192 and -82193 | |||||
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 | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Goodrich, Cyrena Anne
× Goodrich, Cyrena Anne× Keil, Klaus |
|||||
著者所属(英) | ||||||
en | ||||||
Institute of Meteoritics, Department of Geology, University of New Mexico | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Meteoritics, Department of Geology, University of New Mexico | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | A study of lithic clasts >0.1mm in size in new thin-sections of the lunar meteorites Y-791197,-82192 and -82193 revealed that Y-791197 and -82192 may contain components of low-Ti mare basalt, which has not previously been identified in any of the four known lunar meteorites. Of eleven clasts from Y-791197,one is a very low-Ti (VLT) mare basalt, four are ferroan mafic lithologies that are either low-Ti mare basalts or polymict breccias with a large component of low-Ti mare basalt, three are ferroan anorthositic rocks, and three are magnesian granulitic breccias. In Y-82192 and -82193 magnesian clasts, most of which are polymict, are relatively more abundant. Of nine clasts from Y-82192,one is a possible low-Ti mare basalt, two are ferroan mafic lithologies that are either low-Ti mare basalts or polymict breccias with a large component of low-Ti mare basalt, and six are more magnesian polymict breccias. Of four clasts from Y-82193,three are magnesian polymict breccias and one may be a fragment of a pristine Mg-suite lithology. The presence of a significant mare basalt component in at least three of the four lunar meteorites is consistent with orbital geochemical data that suggest that the farside highlands have a 30% component of mare basalts that may predate the final heavy lunar bombardment. The lunar meteorites need not be derived from a source region near visible maria. Available data are insufficient to say whether all four lunar meteorites were derived from a single impact. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00733561 | |||||
書誌情報 |
Memoirs of National Institute of Polar Research. Special issue 巻 46, p. 56-70, 発行日 1987-03 |