intercrater plain

Intercrater plains are relatively flat, less-cratered regions on Mercury that are interspersed among larger impact craters. These plains are more widespread than similar features found on the Moon. They are evidence of resurfacing processes, which can occur through crustal weakening due to temperature changes, material flow under gravity, or deposition of material from above, such as volcanic ash or ejecta from impact craters. While some plains on Mercury, particularly those surrounding the Caloris impact basin, show signs of volcanism, the origin of the older intercrater plains is more difficult to determine due to the potential erosion of volcanic features.123