Geochemical and mineralogical indicators for aqueous processes in the Columbia Hills of Gusev crater, Mars

Douglas W. Ming, D. W. Mittlefehldt, Richard V. Morris, D. C. Golden, R. Gellert, Albert Yen, Benton C. Clark, S. W. Squyres, W. H. Farrand, Steven Ruff, R. E. Arvidson, G. Klingelhöfer, H. Y. McSween, D. S. Rodionov, C. Schröder, Jr A. de Souza, Alian Wang