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The intercrater plains of Mercury and the Moon: Their nature, origin and role in terrestrial planet evolution. Chronology of surface history of the MoonThe sequence of events is described that occurred from the time that the ancient lunar crust solidified (about 4.4. billion years ago) and anorthositic high lands dominated the surface, until the global contraction (cooling) that began around 3.3 billion years ago when late stage basalts were emplaced at basin margins where fractures penetrated to subsurface tensional zones. The lunar intercrater plains may be linked with early KREEP volcanism, the LKFM basalt source region, and the first stages of mare volcanism. Ages of KREEP bracket the possible ages of the pre-Imbrian plains, and overlap the initial stages of mare basalt emplacement. Both plains are extruded under the same tensional tectonic regime.
Document ID
19830003753
Document Type
Thesis/Dissertation
Authors
Leake, M. A.
(Arizona Univ. Tucson, AZ, United States)
Date Acquired
August 11, 2013
Publication Date
September 1, 1982
Publication Information
Publication: NASA, Washington Advan. in Planetary Geol.
Subject Category
Lunar And Planetary Exploration
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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