@article{b45c2897605547f4b2e94159d053a01c,
title = "Mineralogy of a mudstone at Yellowknife Bay, Gale crater, Mars",
abstract = "Sedimentary rocks at Yellowknife Bay (Gale crater) on Mars include mudstone sampled by the Curiosity rover. The samples, John Klein and Cumberland, contain detrital basaltic minerals, calcium sulfates, iron oxide or hydroxides, iron sulfides, amorphous material, and trioctahedral smectites. The John Klein smectite has basal spacing of ∼10 angstroms, indicating little interlayer hydration. The Cumberland smectite has basal spacing at both ∼13.2 and ∼10 angstroms. The larger spacing suggests a partially chloritized interlayer or interlayer magnesium or calcium facilitating H2O retention. Basaltic minerals in the mudstone are similar to those in nearby eolian deposits. However, the mudstone has far less Fe-forsterite, possibly lost with formation of smectite plus magnetite. Late Noachian/Early Hesperian or younger age indicates that clay mineral formation on Mars extended beyond Noachian time.",
author = "{MSL Science Team} and Vaniman, {D. T.} and Bish, {D. L.} and Ming, {D. W.} and Bristow, {T. F.} and Morris, {R. V.} and Blake, {D. F.} and Chipera, {S. J.} and Morrison, {S. M.} and Treiman, {A. H.} and Rampe, {E. B.} and M. Rice and Achilles, {C. N.} and Grotzinger, {J. P.} and McLennan, {S. M.} and J. Williams and Bell, {J. F.} and Newsom, {H. E.} and Downs, {R. T.} and S. Maurice and P. Sarrazin and Yen, {A. S.} and Morookian, {J. M.} and Farmer, {J. D.} and K. Stack and Milliken, {R. E.} and Ehlmann, {B. L.} and Sumner, {D. Y.} and G. Berger and Crisp, {J. A.} and Hurowitz, {J. A.} and R. Anderson and {Des Marais}, {D. J.} and Stolper, {E. M.} and Edgett, {K. S.} and S. Gupta and N. Spanovich and Christophe Agard and Verdasca, {Jos{\'e} Alexandre Alves} and Ryan Anderson and Doug Archer and Carlos Armiens-Aparicio and Ray Arvidson and Evgeny Atlaskin and Sushil Atreya and Andrew Aubrey and Burt Baker and Michael Baker and Tonci Balic-Zunic and David Baratoux and Julien Baroukh",
year = "2014",
doi = "10.1126/science.1243480",
language = "English (US)",
volume = "343",
journal = "Science",
issn = "0036-8075",
publisher = "American Association for the Advancement of Science",
number = "6169",
}