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Basaltic rocks analyzed by the Spirit Rover in Gusev Crater.
McSween, H Y; Arvidson, R E; Bell, J F; Blaney, D; Cabrol, N A; Christensen, P R; Clark, B C; Crisp, J A; Crumpler, L S; Des Marais, D J; Farmer, J D; Gellert, R; Ghosh, A; Gorevan, S; Graff, T; Grant, J; Haskin, L A; Herkenhoff, K E; Johnson, J R; Jolliff, B L; Klingelhoefer, G; Knudson, A T; McLennan, S; Milam, K A; Moersch, J E; Morris, R V; Rieder, R; Ruff, S W; De Souza, P A; Squyres, S W; Wänke, H; Wang, A; Wyatt, M B; Yen, A; Zipfel, J.
Affiliation
  • McSween HY; Department of Earth and Planetary Sciences, University of Tennessee, Knoxville, TN 37996-1410, USA. mcsween@utk.edu
Science ; 305(5685): 842-5, 2004 Aug 06.
Article in En | MEDLINE | ID: mdl-15297668
ABSTRACT
The Spirit landing site in Gusev Crater on Mars contains dark, fine-grained, vesicular rocks interpreted as lavas. Pancam and Mini-Thermal Emission Spectrometer (Mini-TES) spectra suggest that all of these rocks are similar but have variable coatings and dust mantles. Magnified images of brushed and abraded rock surfaces show alteration rinds and veins. Rock interiors contain Alpha Particle X-ray Spectrometer are consistent with picritic basalts, containing normative olivine, pyroxenes, plagioclase, and accessory FeTi oxides. Mössbauer, Pancam, and Mini-TES spectra confirm the presence of olivine, magnetite, and probably pyroxene. These basalts extend the known range of rock compositions composing the martian crust.
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Collection: 01-internacional Database: MEDLINE Main subject: Silicates / Mars / Minerals Language: En Journal: Science Year: 2004 Document type: Article Affiliation country: United States
Search on Google
Add to My VHL
Print
XML
PubMed Links

Collection: 01-internacional Database: MEDLINE Main subject: Silicates / Mars / Minerals Language: En Journal: Science Year: 2004 Document type: Article Affiliation country: United States