Widdekind Posted May 7, 2011 Posted May 7, 2011 (edited) formation of moon maria 3.5 - 3.0 Gya indicates time of total tide-lock to earth ??? Older maria (4.2 - 3.6 Gya?) [+3-6 billion earth-scaled years] from 'natural' planetological processes? (Source: U-of-Oregon) Edited May 7, 2011 by Widdekind
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