Lunar Crust: Structure and Composition

Details Lunar Crust: Structure and Composition Lunar Crust: Structure and Composition

Jun 1972

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1972sci...176.1012t&link_type=abstract

Science, Volume 176, Issue 4038, pp. 1012-1016

Physics

18

Scientific paper

Lunar seismic data from artificial impacts recorded at three Apollo seismometers are interpreted to determin the structure of the moon's interior to a depth of about 100 kilometers. In the Fra Mauro region of Oceanus Procellarum, the moon has a layered crust 65 kilometers thick. The seismic velocities in the upper 25 kilometers are consistent with those in lunar basalts. Between 25 and 65 kilometers, the nearly constant velocity (6.8 kilometers per second) corresponds to velocities in gabbroic and anorthositic rocks. The apparent velocity is high (about 9 kilometers per second) in the lunar mantle immediately below the crust.

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