Wind-related processes detected by the Spirit rover at Gusev crater, Mars

R. Greeley, S. W. Squyres, R. E. Arvidson, P. Bartlett, James Bell, D. Blaney, N. A. Cabrol, Jack Farmer, B. Farrand, M. P. Golombek, S. P. Gorevan, J. A. Grant, A. F C Haldemann, K. E. Herkenhoff, J. Johnson, G. Landis, M. B. Madsen, S. H. McLennan, J. Moersch, J. W. RiceL. Richter, Steven Ruff, R. J. Sullivan, S. D. Thompson, A. Wang, C. M. Weitz, P. Whelley

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82 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)810-821
Number of pages12
JournalScience
Volume305
Issue number5685
DOIs
StatePublished - Aug 6 2004

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    Greeley, R., Squyres, S. W., Arvidson, R. E., Bartlett, P., Bell, J., Blaney, D., Cabrol, N. A., Farmer, J., Farrand, B., Golombek, M. P., Gorevan, S. P., Grant, J. A., Haldemann, A. F. C., Herkenhoff, K. E., Johnson, J., Landis, G., Madsen, M. B., McLennan, S. H., Moersch, J., ... Whelley, P. (2004). Wind-related processes detected by the Spirit rover at Gusev crater, Mars. Science, 305(5685), 810-821. https://doi.org/10.1126/science.1100108