Pre-mare cratering and early solar system history
Conference
·
OSTI ID:4085540
An evaluation of the application of the high extra-lunar flux in pre- mare times to more general problems of early solar system history is attempted by combining the results of dynamic studies with lunar chronological data. Dynamical studies permit separate evaluation of the possible sources for both the normal flux during the first 600 m.y. years of lunar history as well as the peak which apparently occurred 4.0 b.y. ago. Dynamical studies have been carried out in order to determine the extent to which a heliocentric flux could be confined to the Moon (and Earth). A Monte Carlo method has been used to calculate the relative impact rates of planet-crossing bodies with the moon and the terrestrial planets. It is concluded that the time-variation of the flux on these planets is closely related to that on the moon. (STAR)
- Research Organization:
- California Univ., Los Angeles (USA). Dept. of Planetary and Space Science
- NSA Number:
- NSA-33-015519
- OSTI ID:
- 4085540
- Report Number(s):
- N--75-14692; NASA-CR--141254
- Country of Publication:
- United States
- Language:
- English
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