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Tectonics of the Galileo Regio on GanymedeThe surface of Ganymede consists of dark cratered terrain, and groved terrain. The dark cratered terrains form polygonal units, the largest of which is Galileo Regio, the surface of which is transected by furrows, smooth floored valleys bounded by relatively sharp parallel ridges. The most apparent of them are grouped together and form an apparently arcuate system of subparallel furrows which was mapped using Voyager pictures and plotted on a map using a stereographic projection. With this kind of projection, the main furrow system is not arcuate, but rectilinear. Observations strongly suggest that the Galileo Regio furrow systems are not of impact origin and appear to be irrelevant to discussions about the basins' morphology or evolution of planetary lithosphere determined from multiring structures.
Document ID
19850015349
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Thomas, P. G.
(Paris XI Univ. Orsay, France)
Masson, P. L.
(Paris XI Univ. Orsay, France)
Date Acquired
August 12, 2013
Publication Date
April 1, 1985
Publication Information
Publication: NASA, Washington Repts. of Planetary Geol. and Geophys. Program, 1984
Subject Category
Lunar And Planetary Exploration
Accession Number
85N23660
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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