2011 Fiscal Year Final Research Report
Shock metamorphism of the carbonaceous chondrites at high temperatures
| Project/Area Number |
20340150
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Petrology/Mineralogy/Science of ore deposit
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| Research Institution | Kobe University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SEKINE Toshimori 広島大学, 大学院・理学研究科, 教授 (70343829)
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| Project Period (FY) |
2008 – 2011
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| Keywords | 炭素質コンドライト / 衝撃変成 / 熱変成 / 水質変成 / 角礫岩化 / 衝撃溶融 / 斜長石ガラス / コンドリュール・リム |
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| Research Abstract |
Our study by using electron microscopy and synchrotron radiation X-ray diffraction revealed detailed mineralogical characteristics of shock melts in some primitive meteorites shocked at high temperatures. Our shock experiments of a primitive meteorite showed that shock heating effects at high temperatures were very different from those at a room temperature. We also found chondrules surrounded by rims in some primitive meteorites resulted from shock-induced brecciation and proposed a new parent-body formation model of the meteorite textures.
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