| タイトル | Cooling History of Almahata Sitta Ureilite as Inferred from Transmission Electron Microscopy of Iron Metal |
| 本文（外部サイト） | http://hdl.handle.net/2060/20140000761 |
| 著者（英） | Mikouchi, T.; Aoyagi, Y.; Goldstein, J. I.; Sugiyama, K.; Zolensky, M. E.; Yubuta, K.; Goodrich, C. A. |
| 発行日 | 2013-07-29 |
| 言語 | eng
eng |
| 内容記述 | Almahata Sitta (AS) is a polymict breccia mainly composed of various ureilite lithologies with lesser chondritic lithologies [1]. In the ureilite lithologies, Fe metal is a common accessory phase present either as large grain boundary grains or small particles formed by reduction of olivine and pyroxene. In our earlier studies on grain boundary metals in one of AS fragments (#44) we found unique features never seen in other ureilites [2,3]. In order to further characterize these metal grains, we performed a detailed TEM study on a FIB section prepared from one of AS #44 grain boundary metals and here discuss its thermal history. |
| NASA分類 | Geophysics |
| レポートNO | JSC-CN-28793
JSC-CN-28793 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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