| タイトル | The Impact History Of The Moon |
| 本文（外部サイト） | http://hdl.handle.net/2060/20100026404 |
| 著者（英） | Cohen, B. A. |
| 著者所属（英） | NASA Marshall Space Flight Center |
| 発行日 | 2010-04-26 |
| 言語 | eng |
| 内容記述 | The bombardment history of the Earth-Moon system has been debated since the first recognition that the circular features on the Moon may be impact craters. Because the lunar impact record is the only planetary impact record to be calibrated with absolute ages, it underpins our understanding of geologic ages on every other terrestrial planet. One of the more remarkable results to come out of lunar sample analyses is the hypothesis that a large number of impact events occurred on the Moon during a narrow window in time approximately 3.8 to 4.1 billion years ago (the lunar cataclysm ). Subsequent work on the lunar and martian meteorite suites; remote sensing of the Moon, Mars, asteroids, and icy satellites; improved dynamical modeling; and investigation of terrestrial zircons extend the cataclysm hypothesis to the Earth, other terrestrial planets, and possibly the entire solar system. Renewed US and international interest in exploring the Moon offers new potential to constrain the Earth-Moon bombardment history. This paper will review the lunar bombardment record, timing and mechanisms for cataclysmic bombardment, and questions that may be answered in a new age of exploration. |
| NASA分類 | Lunar and Planetary Science and Exploration |
| レポートNO | M10-0669
M10-0668
M10-0670 |
| 権利 | No Copyright |
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