Sedimentary silica on Mars

Research Article| April 01, 2003 Sedimentary silica on Mars Scott M. McLennan Scott M. McLennan 1Department of Geosciences, State University of New York at Stony Brook, Stony Brook, New York 11794-2100, USA Search for other works by this author on: GSW Google Scholar Author and Article Information Scott M. McLennan 1Department of Geosciences, State University of New York at Stony Brook, Stony Brook, New York 11794-2100, USA Publisher: Geological Society of America Received: 02 Aug 2002 Revision Received: 11 Nov 2002 Accepted: 24 Nov 2002 First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (2003) 31 (4): 315–318. https://doi.org/10.1130/0091-7613(2003)0312.0.CO;2 Article history Received: 02 Aug 2002 Revision Received: 11 Nov 2002 Accepted: 24 Nov 2002 First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Get Permissions Search Site Citation Scott M. McLennan; Sedimentary silica on Mars. Geology 2003;; 31 (4): 315–318. doi: https://doi.org/10.1130/0091-7613(2003)0312.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Terrestrial planetary surfaces, other than Earth, are overwhelmingly basaltic in character. Because of this, among the most intriguing and significant results from recent studies of Mars are the occurrences of high-silica rocks at the Pathfinder site and orbital thermal emission spectroscopy evidence for a global petrological dichotomy with andesites dominating the entire northern hemispheric plains. However, during the alteration of basalt under a wide variety of pressure, temperature, and fluid conditions, silica is highly mobile, and chemical and/or mineralogical relationships among Martian soils and other surface deposits suggest the likelihood that sedimentary silica phases would have formed during surficial alteration processes. Accordingly, the redistribution of sedimentary silica needs to be considered in interpreting at least some of the high-silica features seen on Mars. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.