| タイトル | Accretion, Differentiation, and Impact Processes on the Ureilite Parent Body |
| 本文（外部サイト） | http://hdl.handle.net/2060/20070009853 |
| 著者（英） | Hudon, P.; Downes, Hilary; Herrin, J. S.; Mittlefehldt, D.W. |
| 著者所属（英） | NASA Johnson Space Center |
| 発行日 | 2007-01-01 |
| 言語 | eng |
| 内容記述 | Ureilites are primitive ultramafic achondrites composed largely of olivine and pigeonite, with minor augite, orthopyroxene, carbon, sulphide and metal. They represent very early material in the history of the Solar System and (in common with lodranites and acapulcoites) form a bridge between undifferentiated chondrites and fully differentiated asteroidal bodies. They show an intriguing mixture of chemical characteristics, some of which are considered to be nebula-derived (e.g. variations in Delta(sup 17)O and mg#) whereas others have been imposed by asteroidal differentiation (e.g. core formation, silicate partial melting, removal of basalt). |
| NASA分類 | Lunar and Planetary Science and Exploration |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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