The Asuka-87 and Asuka-88 collections of Antarctic meteorites: Preliminary examination with brief descriptions of some typical and unique-unusual specimens

• Yanai Keizo

  National Institute of Polar Research

抄録

Preliminary examinations were carried out of over 2400 pieces of the new Asuka meteorites after the initial processing at the NIPR. According to the initial processing, the Asuka-87 meteorite collection consists of one iron, one stony-iron, 9 achondrites, 3 carbonaceous meteorites and over 300 chondritic specimens. The Asuka-88 meteorites collection comprises 7 irons, 5 stony-irons, over 50 achondrites, 31 carbonaceous meteorites and over 2000 chondritic specimens. Through preliminary examinations with a polarizing microscope and electron microprobe, one mesosiderite, 2 ureilites, 2 diogenites (possibly paired) and 2 eucrites were identified in the Asuka-87 collection. In the Asuka-88 collection, one unbrecciated gabbro and one olivine-fassaite basalt were examined. These uniqueunusual specimens were determined to be a lunar mare gabbro and an angritetype achondrite. Diogenites, ureilites, and one fine-grained, one coarse-grained and one porphyritic eucrite were also newly identified in the Asuka-88 collection, together with a pallasite, a mesosiderite and CM, CV, CO chondrites. Some of the typical and unique-unusual specimens of the Asuka-87 and Asuka-88 collections are briefly described here.

収録刊行物

• Proceedings of the NIPR Symposium on Antarctic Meteorites

  Proceedings of the NIPR Symposium on Antarctic Meteorites 6 148-170, 1993-05

  国立極地研究所

詳細情報

• CRID: 1570854176796741376
• NII論文ID: 110000029975
• NII書誌ID: AA10784627
• ISSN: 09145621
• 本文言語コード: en
• データソース種別:
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