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Chemistry and texture of the rocks at Rocknest, Gale Crater: Evidence for sedimentary origin and diagenetic alteration

Blaney, D.L.; Wiens, Roger C.; Maurice, Sylvester; Clegg, S.; Anderson, R.B.; Kah, L.C.; Le Mouelic, S; Ollila, Anne M.; Bridges, N; Tokar, R; Berger, G; King, Penelope

Description

A suite of eight rocks analyzed by the Curiosity Rover while it was stopped at the Rocknest sand ripple shows the greatest chemical divergence of any potentially sedimentary rocks analyzed in the early part of the mission. Relative to average Martian soil and to the stratigraphically lower units encountered as part of the Yellowknife Bay formation, these rocks are significantly depleted in MgO, with a mean of 1.3 wt %, and high in Fe, averaging over 20 wt % FeOT, with values between 15 and 26wt...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
URI: http://hdl.handle.net/1885/22032
Source: Journal of Geophysical Research
DOI: 10.1002/2013JE004590

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