Computer Science
Scientific paper
Jan 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992sci...255..570b&link_type=abstract
Science (ISSN 0036-8075), vol. 255, Jan. 31, 1992, p. 570-576.
Computer Science
63
Galileo Project, Lunar Crust, Lunar Evolution, Lunar Far Side, Lunar Limb, Earth-Moon System, Lunar Composition, Lunar Exploration, Lunar Maps, Satellite Imagery
Scientific paper
Multispectral images of the lunar western limb and far side obtained from Galileo reveal the compositional nature of several prominent lunar features and provide new information on lunar evolution. The data reveal that the ejecta from the Orientale impact basin (900 kilometers in diameter) lying outside the Cordillera Mountains was excavated from the crust, not the mantle, and covers pre-Orientale terrain that consisted of both highland materials and relatively large expanses of ancient mare basalts. The inside of the far side South Pole-Aitken basin (greater than 2000 kilometers in diameter) has low albedo, red color, and a relatively high abundance of iron- and magnesium-rich materials. These features suggest that the impact may have penetrated into the deep crust or lunar mantle or that the basin contains ancient mare basalts that were later covered by highlands ejecta.
Anger Clifford D.
Belton Michael J. S.
Carr Michael H.
Chapman Clark R.
Gerhard Neukum
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