| タイトル | Regoliths on small bodies in the solar system |
| 著者（英） | Housen, K. R.; Wilkening, L. L. |
| 著者所属（英） | Arizona Univ. |
| 発行日 | 1982-01-01 |
| 言語 | eng |
| 内容記述 | A regolith is defined as a layer or mantle of loose, incoherent, rocky material of whatever origin, that nearly everywhere forms the surface of the land and rests on coherent bedrock. The regoliths on many planetary bodies are the result of continual impacts, which transform coherent surfaces into fragmental debris. The present investigation is concerned with the special case of regolith formation and evolution on small objects, such as asteroids and meteorite parent bodies. First order models of regolith evolution on asteroidal surfaces are constructed on the basis of data provided by studies of lunar samples and meteorites. It appears that regolith formation proceeds by deposition of discrete layers of the widely spread ejecta primarily from the larger impacts. Moderate-size (100-300 km diameter) asteroids are covered by modest regoliths of the order of one km in depth. Small rocky asteroids develop negligible regoliths. |
| NASA分類 | LUNAR AND PLANETARY EXPLORATION |
| レポートNO | 82A35780 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/410101 |
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