Ripple ring basins on Ganymede and Callisto
Abstract
The unusual morphology of the Valhalla multiple or ripple-ring basin in Callisto was totally unexpected in light of the morphologies of large impact structures on the terrestrial planets. Two other ripple-ring basins (RRB's), Asgard and a smaller structure near the crater Adlinda are also described. Several additional RRB's were found on Callisto, an example of which is shown. A previously unrecognized RRB on Ganymede was also found. An image and geologic sketch map of this RRB are shown. Morphometric and positional data for all known RRB's are given.
- Publication:
-
Reports of Planetary Geology and Geophysics Program
- Pub Date:
- April 1985
- Bibcode:
- 1985pggp.rept..206C
- Keywords:
-
- Callisto;
- Ganymede;
- Geomorphology;
- Planetary Geology;
- Ripples;
- Satellite Surfaces;
- Structural Basins;
- Craters;
- Escarpments;
- Geophysics;
- Photogeology;
- Ring Structures;
- Structural Properties (Geology);
- Lunar and Planetary Exploration