Encyclopedia of Planetary Landforms

2015 Edition
| Editors: Henrik Hargitai, Ákos Kereszturi

Central Dome Crater

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-3134-3_39

Definition

A type of complex crater exhibiting a central complex comprised of a central depression partially filled by a dome.

Synonyms

Type II Penepalimpsest (Passey and Shoemaker 1982), Dome-type anomalous pit crater (Croft 1983), Moat crater (Lucchitta and Ferguson 1988), Small dome craters (Moore and Malin 1988)

Description

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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References

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.NASA Ames Research Center/NPPMoffett FieldUSA