Elemental geochemistry of sedimentary rocks at Yellowknife Bay, Gale crater, Mars.

M McLennan, S; B Anderson, R; F Bell, J; C Bridges, J; Calef, F; L Campbell, J; C Clark, B; Clegg, S; Conrad, P; Cousin, A; J Des Marais, D; Dromart, G; D Dyar, M; A Edgar, L; L Ehlmann, B; Fabre, C; Forni, O; Gasnault, O; Gellert, R; Gordon, S; A Grant, J; P Grotzinger, J; Gupta, S; E Herkenhoff, K; A Hurowitz, J; L King, P; Le Mouélic, S; A Leshin, L; Léveillé, R; W Lewis, K; Mangold, N; Maurice, S; W Ming, D; V Morris, R; Nachon, M; E Newsom, H; M Ollila, A; M Perrett, G; S Rice, M; E Schmidt, M; P Schwenzer, S; Stack, K; M Stolper, E; Y Sumner, D; H Treiman, A; VanBommel, S; T Vaniman, D; Vasavada, A; C Wiens, R; A Yingst, R

doi:10.1126/science.1244734

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Elemental geochemistry of sedimentary rocks at Yellowknife Bay, Gale crater, Mars.

Shared by NobleBlocks on Jan 24, 2014 • 12:00 AM UTC

Authors:

S M McLennan

R B Anderson

J F Bell

Abstract

Sedimentary rocks examined by the Curiosity rover at Yellowknife Bay, Mars, were derived from sources that evolved from an approximately average martian crustal composition to one influenced by alkaline basalts. No evidence of chemical weathering is preserved, indicating arid, possibly cold, paleocl...

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