Physics
Scientific paper
Apr 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13..345m&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 13, April 1986, p. 345-348. Research supported by the William F. Marlar Foun
Physics
7
Ganymede, Satellite Surfaces, Tectonics, Grooves, Orientation, Structural Basins, Terrain Analysis, Jupiter, Satellites, Ganymede, Tectonics, Patterns, Perturbations, Gilgamesh, Impact Effects, Models, Basins, Formation, Craters, Spin, Surface, Grooves, Features, Tidal Effects, Furrows, Paleopoles, Age, Emplacement, Terrain, Procedure, Calculations
Scientific paper
The basins of Ganymede are studied in order to examine the effects of global reorientation on the grooves and furrows of the satellite. An impact basin and the global reorientation of Ganymede were modeled. The damping time, the time for relaxation of tidal bulge, and the time for isostatic adjustment of craters are significant in calculating the duration and amount of global reorientation. The regional global control of groove orientation is examined; the data reveal that the tidal despinning and furrow formation created the reactivated zones of weakness in which the groove sets were formed. It is observed that the grooved terrain emplacement caused a 15 deg shift in the paleopole.
Head James W.
Murchie Scott L.
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