Squyres, Steven W.; Arvidson, Raymond E.; Ruff, S.; Gellert, R.; Morris, R. V.; Ming, D. W.; Crumpler, Larry S.; Farmer, J. D.; Marais, D. J. Des; Yen, A.; McLennan, S. M.; Calvin, W. M.; Bell, James F., III; Clark, Benton C.; Wang, A.; McCoy, Timothy J.; Schmidt, M. E.; de Souza, P. A., Jr.
(2008)
Mineral deposits on the martian surface can elucidate ancient environmental conditions on the planet. Opaline silica deposits (as much as 91 weight percent SiO2) have been found in association with volcanic materials by ...