Central Dome Crater
A type of complex crater exhibiting a central complex comprised of a central depression partially filled by a dome.
Central dome craters are ∼60 to ∼180 km diameter complex craters on the icy Galilean Satellites Ganymede and Callisto. The central complex is comprised of a rimmed pit partially filled with a smooth, relatively bright dome 10s of kilometers wide. The central dome is characterized by a web-like network of narrow fractures. The dome is surrounded by an annular ridge or, in larger craters, a ring of rugged massifs. The dome-to-crater size radio increases with increasing diameter (Schenk 1993). There may be a continuum from fresh central dome craters to subdued, anomalous dome craters to penepalimpsests to palimpsests (Lucchitta and Ferguson 1988) that may reflect...
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