Silicic volcanism on Mars evidenced by tridymite in high-SiO2 sedimentary rock at Gale crater

Richard V. Morris, David T. Vaniman, David F. Blake, Ralf Gellert, Steve J. Chipera, Elizabeth B. Rampe, Douglas W. Ming, Shaunna M. Morrison, Robert T. Downs, Allan H. Treiman, Albert S. Yen, John P. Grotzinger, Cherie N. Achilles, Thomas F. Bristow, Joy A. Crisp, David J. Des Marais, Jack D. Farmer, Kim V. Fendrich, Jens Frydenvang, Trevor G. GraffJohn-Michael Morookian, Edward M. Stolper, Susanne P. SchwenzerVis 3 andreVis mindre