Grooved Terrain on Ganymede: a Galileo-based Synthesis
نویسندگان
چکیده
Geoffrey C. Collins, James W. Head, Jeffrey M. Moore, and Paul M. Schenk, LASP, University of Colorado, Box 392, Boulder, CO 80309 ([email protected]), Astronomy and Physics Dept., Wheaton College, Norton, MA 02766, Brown University, Box 1846, Providence, RI 02912, Ames Research Center, MS 245-3, Moffett Field, CA, 94035, Lunar and Planetary Institute, 3600 Bay Area Blvd, Houston, TX 77058.
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Global Expansion of Ganymede Derived from Strain Measurements in Grooved
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Galileo stereo images covering about 1500 km 2 of Uruk Sulcus on Ganymede have revealed two scales of ridges; (1) large-scale ridges and troughs spaced -6 km apart, corresponding to the "grooves" seen in Voyager images, and (2) small-scale ridges spaced hundreds of meters apart superimposed on the large-scale ridges. We interpret the small-scale ridges to be the result of tilt-block normal faul...
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