Anomalous Dome Crater
A type of central dome crater
Anomalous dome craters are 50–250 km diameter complex craters on the icy Galilean satellites. Anomalous dome craters exhibit a relatively bright, large circular dome, surrounded by a ring of rugged massifs. Surrounding this central complex is an annulus of smoothed or mottled material, the outer boundary of which is sometimes marked by a discontinuous circular lineament (Schenk 1996).
Coherent rim structures are absent. They have a broad, low rise (Neith, Ganymede) (Fig. 1), incomplete outward or inward facing scarp segments (Doh, Callisto) (Fig. 2) or no observable rim (Anzu, Ganymede).
The dome-to-rim diameter ratio is roughly constant (0.4), regardless of crater size.
Anomalous dome craters are not...
- Moore JM, Malin MC (1988) Dome craters on Ganymede, Geophys. Res. Letters 15(3):225–228Google Scholar
- Passey QR, Shoemaker EM (1982) Craters and basins on Ganymede and Callisto – morphological indicators of crustal evolution, in: satellites of Jupiter. University of Arizona Press, TucsonGoogle Scholar
- Schenk PM (1996) Ganymede crater database. LPI. http://www.lpi.usra.edu/resources/gc/gchome.html
- Schenk PM, Chapman CR, Zahnle K, Moore JM (2004) Ages and interiors: the cratering record of the Galilean Satellites. In: Bagenal F, Dowling TE, McKinnon WB (eds) Jupiter: the planet, satellites and magnetosphere. Cambridge University Press, Cambridge, p 719Google Scholar