Other
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3720203s&link_type=abstract
Geophysical Research Letters, Volume 37, Issue 20, CiteID L20203
Other
13
Global Change: Geomorphology And Weathering (0790, 1824, 1825, 1826, 1886), Planetary Sciences: Solar System Objects: Mars, Planetary Sciences: Solid Surface Planets: Surface Materials And Properties, Planetary Sciences: Solid Surface Planets: Atmospheres (0343, 1060), Planetary Sciences: Solid Surface Planets: Remote Sensing
Scientific paper
In this report we show evidence of widespread ripple migration over the stoss side of dark barchan dunes in Nili Patera on Mars. The measured average migration of ˜1.7 meters in less than 4 terrestrial months clearly indicates that active sand saltation is occurring in the study area. In addition, we document widespread changes in the dune base-ground surface contact and in the slip face structures, showing that not only the ripples, but the whole dunes are actually migrating in the present-day atmospheric setting. These results provide unequivocal evidence of recent aeolian activity and suggest that other dunes and ripples on Mars may also be active.
Bridges Nathan T.
Fenton Lori K.
Ori Gian Gabriele
Silvestro Simone
Vaz David A.
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