Lunar Crust and Regolith Depths
Regolith depths are 2-8m in the Mare, and possibly 15m or more in the
Also, the Mare is surprisingly thin, averaging a few 100m thick,
depths of 2-4km in the deep centres of the basins.
The current view is that the luanr crust, some 70km thick on average
and containing about 12 percent of the Moon's volume, is shattered
down to a depth of a few tens of kilometers. Below about 25 km the
fractures have annealed.
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Updated Sun, Aug 8, 1999.