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Basaltic rocks analyzed by the Spirit Rover in Gusev Crater |
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| Authors: | 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: | Department of Earth and Planetary Sciences, University of Tennessee, Knoxville, TN 37996-1410, USA. mcsween@utk.edu |
| 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 |
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