pedestal crater

geology

Learn about this topic in these articles:

In Mars: Southern cratered highlands
…the Moon; and rampart and pedestal craters. Hellas, the largest impact basin on Mars, is 8 km (5 miles) deep and about 7,000 km (4,350 miles) across, including the broad elevated ring surrounding the depression. Most of the craters measuring tens to hundreds of kilometers across are highly eroded in…
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