Physics
Scientific paper
Oct 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011epsc.conf.1292q&link_type=abstract
EPSC-DPS Joint Meeting 2011, held 2-7 October 2011 in Nantes, France. http://meetings.copernicus.org/epsc-dps2011, p.1292
Physics
Scientific paper
We re-assess the issue of the putative pollution of secondary craters on the crater retention age assessment. We study the secondary flied of Gratteri crater, a young 7 km crater. We assess the crater density of small impact craters inside and outside Gratteri rays at different distance from the primary impact. Our results reveal that the crater density is homogeneous outside the rays from 0 to 500 km to Gratteri and that the crater density experienced a peak at 150 km from Gratteri inside the rays. Inside the rays, the secondary craters are easily identifiable as they are clustered and aligned. Our study suggests that away from secondary clusters, and rays the crater density is not obviously affected by the secondaries.
Hartmann William K.
Popova Olga
Quantin Cathy
Werner Stephanie C.
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