Wind-Related Processes Detected by the Spirit Rover at Gusev Crater, Mars
Spirit Rover
Extraterrestrial Environment
13. Climate action
0103 physical sciences
Mars
Wind
Evolution, Planetary
01 natural sciences
0105 earth and related environmental sciences
DOI:
10.1126/science.1100108
Publication Date:
2004-08-05T20:18:15Z
AUTHORS (27)
ABSTRACT
Wind-abraded rocks, ripples, drifts, and other deposits of windblown sediments are seen at the Columbia Memorial Station where the Spirit rover landed. Orientations of these features suggest formative winds from the north-northwest, consistent with predictions from atmospheric models of afternoon winds in Gusev Crater. Cuttings from the rover Rock Abrasion Tool are asymmetrically distributed toward the south-southeast, suggesting active winds from the north-northwest at the time (midday) of the abrasion operations. Characteristics of some rocks, such as a two-toned appearance, suggest that they were possibly buried and exhumed on the order of 5 to 60 centimeters by wind deflation, depending on location.
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