Tags: Crater.
Achelous is a relatively fresh crater on Ganymede adjacent to the similarly sized Gula. It has an outer lobate ejecta deposit extending about a crater radius from the rim. A characteristic feature of both craters almost identical in size is the pedestal – an outward-facing relatively gently sloped scarp that terminates the continuous ejecta blanket. Similar features may be seen in ejecta blankets of Martian craters suggesting impacts into a volatile (ice)-rich target material.
