Mare, Cryptomare, and Nonmare Plains Units in the South Pole-Aitken Basin Interior

Details Mare, Cryptomare, and Nonmare Plains Units in the South Pole-Aitken Basin Interior Mare, Cryptomare, and Nonmare Plains Units in the South Pole-Aitken Basin Interior

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1561j&link_type=abstract

EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1561

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Scientific paper

The interior of South Pole-Aitken basin has a distinctive geochemical signature discovered from orbital compositional measurements. The deep basin interior contains extensive plains deposits, some of which are clearly volcanic and others that are deposits from large impact craters that penetrated into the SPA basin substrate. Image data from the Lunar Reconnaissance Orbiter Cameras and digital terrain models generated from the image data are used to distinguish areas of mare and cryptomare from impact-generated plains deposits. We find that compositional data are a poor discriminator of these different types of deposits, which supports the likelihood that crater ejecta deposits are mafic and reflect the substantial contribution of SPA impactmelt rocks to the regolith.

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