Other
Scientific paper
Aug 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000mpse.conf..120m&link_type=abstract
International Conference on Mars Polar Science and Exploration, p. 120
Other
Glacial Drift, Landforms, Mars (Planet), Mars Surface, Planetary Geology, Climatology, Laser Altimeters, Ice, Water Flow, Southern Hemisphere
Scientific paper
Several regions of the southern Martian hemisphere display sinuous braided ridges sometimes interpreted as eskers because of their similarities with terrestrial eskers. This hypothesis has important climatic implications because eskers are related to water flows under ice sheets. Possible recent glaciations are postulated according the nature of these landforms. However the esker hypothesis remains controversial. Some other explanations have been proposed like dikes or wrinkle ridges. Recently, new Mars Observer Laser Altimeter (MOLA) data measured the height and width of the most elevated of these ridges. These data seem to confirm the esker hypothesis. Their width and height are nevertheless at the upper limit of terrestrial eskers. The giant paleo-eskers described in this study are in the order of magnitude of Martian esker-like features in a dry Saharian environment. Additional information can be found in the original extended abstract.
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