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Aug 26, 2020 at 6:51 comment added Stuart Robbins Sorry, Archimedes is not a peak-ring crater. It was a central peak before it was filled. The abstract to which you link was not actually presented at the PCC meeting last year, it was print-only, and their interpretation of a ring in the gravity data is extremely dubious (it looks like noise). Based on craters that are not filled with lava on the moon, the transition from central peak to peak ring takes place at several hundred kilometers in diameter, while Archimedes is about 81 km (comparable to Tycho and Copernicus, both with very well formed central peaks and no hint of a ring).
Aug 23, 2020 at 16:42 comment added tutizeri Great answer. I didn't even suspected that the crater had his own papers.
Aug 23, 2020 at 16:42 vote accept tutizeri
Aug 23, 2020 at 3:48 history answered AstroShannon CC BY-SA 4.0