Microcraters observed on 15015 breccia and micrometeoroid flux.
Abstract
A sample from the 15015 breccia has been searched for impact microcraters. The size-frequency distribution of craters is typical of a surface in production state. Comparison with laboratory produced craters implies they have been made by roughly 3-g/cu cm density projectiles at impact velocity in the 10-15 km/sec range. This velocity is in agreement with recent data from satellite detectors. The low solar-flare track density and the number density of microcraters are consistent with an exposure time of the sample to the meteoritic bombardment of 3000 yr.
- Publication:
-
Lunar and Planetary Science Conference Proceedings
- Pub Date:
- 1975
- Bibcode:
- 1975LPSC....6.3403M
- Keywords:
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- Breccia;
- Lunar Craters;
- Lunar Rocks;
- Micrometeoroids;
- Calibrating;
- Meteoritic Damage;
- Particle Size Distribution;
- Selenology;
- Lunar and Planetary Exploration