| タイトル | History and genesis of lunar troctolite 76535 or: How old is old |
| 著者（英） | Scheinin, N. B.; Lugmair, G. W.; Kurtz, J. P.; Marti, K. |
| 著者所属（英） | California Univ. |
| 発行日 | 1976-01-01 |
| 言語 | eng |
| 内容記述 | The history of lunar troctolite 76535 was investigated on the basis of information from the Sm-147-Nd-143 mineral isochron age, the Nd-143 evolution, extinct Pu-224, the Kr-81-Kr exposure age and the cosmic ray exposure record. It was found that the troctolite minerals last equilibrated 4.26 plus or minus 0.06 AE ago and that the Sm-Nd system became closed at this time. The rock remained at temperatures where the loss of radiogenic Ar-40 was small. |
| NASA分類 | LUNAR AND PLANETARY EXPLORATION |
| レポートNO | 77A34766 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/437861 |
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