Physics
Scientific paper
Mar 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jgr....91.3561b&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 91, March 10, 1986, p. 3561-3572.
Physics
91
Drainage Patterns, Mars Craters, Mars Surface, Planetary Geology, Valleys, Equatorial Regions, Erosion, Geomorphology, Highlands, Hydrogeology, Planetary Evolution, Structural Basins, Mars, Valleys, Morphology, Equatorial Regions, Highlands, Topography, Terrain, Morphometry, Emplacement, Bombardment, Time Scale, Sapping, Cratering, Production Rates, Drainage, Formation
Scientific paper
This study is concerned with a more detailed investigation of the small valley networks on Mars. The dual nature of many valley systems is pointed out, taking into account a relatively fresh-appearing network portion versus an apparent larger, less distinct network system. These separate network characteristics are referred to as pristine and degraded. The valley networks included in this study are all located in the equatorial zone of heavily cratered uplands, between latitudes 30 deg N and 40 deg S. Aspects of network morphology are examined, taking into account drainage density, network dissection ratio, and valley length parameters. Age relationships are also discussed, giving attention to crater age, counting problems, a conservative method, and a crater-fraction method.
Baker Victor R.
Partridge J. B.
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