| Project/Area Number |
60400014
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| Research Category |
Grant-in-Aid for General Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
広領域
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| Research Institution | National Institute of Polar Research |
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Principal Investigator |
YANAI Keizo Associate Professor, Curator of Antarctic Meteorites, Natl Inst. Polar Res., その他, 助教授 (40004494)
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| Co-Investigator(Kenkyū-buntansha) |
KOJIMA Hideyasu Associate, Natl Inst. Polar Res. Tokyo, 研究系・地学研究部門, 助手 (10113896)
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| Project Period (FY) |
1985 – 1986
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| Project Status |
Completed (Fiscal Year 1986)
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| Budget Amount *help |
¥15,800,000 (Direct Cost: ¥15,800,000)
Fiscal Year 1986: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1985: ¥13,300,000 (Direct Cost: ¥13,300,000)
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| Keywords | Iron / Stony-Iron / Chondrite / Achondrite / Carbonaceous Chondrite / Lunar Meteorite / パラサイト / シャーゴッタイト / メソシデライト |
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| Research Abstract |
1. Identification and classification of the Antarctic meteorite collections:
About 300 new specimens of the Antarctic meteorites have been identified and classified to various types of meteorite. Japanese collections of Antarctic meteorites collected since 1969 season have been classified as 24 Irons, 6 Stony-Irons, 5309 Chondrites, 158 Achondrites, 60 Carbonaceous chondrites and 61 unprocessed one, those are included previously and preliminary classified specimens.
2. Identification of meteorites originated from moon:
Two new lunar meteorites were found in the yamato-79 and 82 collections. Yamato-793274 (8g) and Yamato-82193 (27g) are lunar origin. Japan has 4 lunar meteorites which are expected to originated from the far side of moon surface when a giant meteorite came down to the moon.
3. Find new type pallasite:
The first pallasite included pyroxene was found in the Yamato-84 meteorite collection. This specimen may new type of meteorite, but we need more examination.
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