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An integrated dynamical and geochemical approach to lunar origin modellingThe three major categories of models of lunar origin which explain the Moon's properties are complete and a more general scenario is presented. The model presented is as the Earth grew by planetesimal bombardment, a circumterrestrial cloud of particles was created from a combination of impact ejected mantle material and planetismals captured directly into orbit around the Earth. The compositional properties are explained two ways: (1) a few big late planetismals of diverse composition are captured in orbit and/or hit the Earth; and (2) the circumterrestrial swarm acts as a filter, preferentially capturing small weak silicate bodies, while passing large iron planetismals.
Document ID
19850005439
Document Type
Conference Paper
Authors
Greenberg, R. (Planetary Science Inst. Tucson, AZ, United States)
Chapman, C. R. (Planetary Science Inst. Tucson, AZ, United States)
Davis, D. R. (Planetary Science Inst. Tucson, AZ, United States)
Drake, M. J. (Planetary Science Inst. Tucson, AZ, United States)
Hartmann, W. K. (Planetary Science Inst. Tucson, AZ, United States)
Herbert, F. L. (Planetary Science Inst. Tucson, AZ, United States)
Jones, J. (Planetary Science Inst. Tucson, AZ, United States)
Weidenschilling, S. J. (Planetary Science Inst. Tucson, AZ, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Publication Information
Publication: Lunar Planetary Inst. Conf. on the Origin of the Moon
Subject Category
LUNAR AND PLANETARY EXPLORATION
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19850005400Analytic PrimaryConference on the Origin of the Moon