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Sand Mineralogy Within the Bagnold Dunes, Gale Crater, as Observed In Situ and From Orbit

Show simple item record Rampe, E. B. Castle, N. Treiman, Allan H.
dc.coverage.spatial Mars 2020-04-07T19:21:38Z 2020-04-07T19:21:38Z 2018-08-29
dc.identifier.citation Rampe, E. B., Lapotre, M. G. A., Bristow,T. F., Arvidson, R. E., Morris, R. V., Achilles, C. N., et al. (2018). Sand mineralogy within the Bagnold Dunes, Gale crater, as observed in situ and from orbit. Geophysical Research Letters, 45,9488–9497. en
dc.description.abstract Remote sensing data from orbit indicate that wind-blown sands in the Bagnold Dune Field in Gale crater, Mars, are sorted by their composition. The Mars Science Laboratory Curiosity rover studied the Bagnold Dune Field at two locations to investigate the chemical and mineral composition of the sands and why they are sorted across the dune field. Data from Curiosity show distinct differences between the minerals in the upwind portion of the dune field compared to the downwind portion, but these differences are not the same as those observed from orbit. The scale and location of the sampling by Curiosity compared to orbiters explains the discrepancy between the two techniques. Results from both techniques suggest subtle differences in mineralogy within a single dune and across the dune field that can be explained by sorting from wind and contribution from the erosion of local bedrock. en
dc.description.statementofresponsibility E. B. Rampe, M. G. A. Lapotre, T. F. Bristow, R. E. Arvidson, R. V. Morris, C. N. Achilles, C. Weitz, D. F. Blake, D. W. Ming, S. M. Morrison, D. T. Vaniman, S. J. Chipera, R. T. Downs, J. P. Grotzinger, R. M. Hazen, T. S. Peretyazhko, B. Sutter, V. Tu, A. S. Yen, B. Horgan, N. Castle, P. I. Craig, D. J. Des Marais, J. Farmer, R. Gellert, A. C. McAdam, J. M. Morookian, P. C. Sarrazin, A. H. Treiman
dc.format.extent pages 9488–9497
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher American Geophysical Union en
dc.relation.ispartofseries LPI contribution ; no. 2124
dc.subject Mars (Planet) en
dc.subject Sand dunes en
dc.title Sand Mineralogy Within the Bagnold Dunes, Gale Crater, as Observed In Situ and From Orbit en
dc.type Article en
dc.rights.license Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)

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