Far-Field Secondaries of Tycho Crater on the Moon
Crater counting plays an important role in absolute-age dating of planetary surfaces like Mars. However, crater counts can be tainted by secondary crater impacts (the result of ejecta spray from primary impacts) in ways that may significantly alter planetary surface ages. This summer, I studied several crater populations on the South Pole of the Earth’s Moon to further investigate the relative abundance of small primaries and secondaries, as well as how to identify far-field secondary craters using Arecibo radar circular polarization ratio (CPR) maps.