| タイトル | Age and Petrogenesis of Picritic Shergottite NWA1068: Sm-Nd and Rb-Sr Isotopic Studies |
| 著者（英） | Barrat, J. A.; Wiesmann, H.; Nyquist, L. E.; Shih, C.-Y. |
| 著者所属（英） | NASA Johnson Space Center |
| 発行日 | 2003-01-01
2003 |
| 言語 | eng |
| 内容記述 | NWA 1068 is a 577g picritic shergottite found in the Moroccan Sahara in 2001. The meteorite resembles several other picritic shergottites, e.g. EETA79001B, DaG476, SaU005 and Dho019, in major-element chemistry and mineralogy, but it differs significantly from these meteorites in REE distribution pattern. It has a slightly LREE-depleted pattern commonly shared by some olivine-free basaltic shergottites, e.g. Shergotty, Zagami and Los Angeles, but not QUE94201. Detailed geochemical and mineral-petrological studies were given in. We performed Rb-Sr and Sm-Nd isotopic analyses on this rock to determine its crystallization age and to study the petrogenetic relationship between this meteorite and other basaltic and pricritic shergottites. |
| NASA分類 | Lunar and Planetary Science and Exploration |
| 権利 | Copyright, Distribution under U.S. Government purpose rights |
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