Basaltic Rocks Analyzed by the Spirit Rover in Gusev Crater-Reference-Cited by-同舟云学术

Basaltic Rocks Analyzed by the Spirit Rover in Gusev Crater

Published:2004-08-06 Issue:5685 Volume:305 Page:842-845
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

McSween H. Y.¹²³⁴⁵,Arvidson R. E.¹²³⁴⁵,Bell J. F.¹²³⁴⁵,Blaney D.¹²³⁴⁵,Cabrol N. A.¹²³⁴⁵,Christensen P. R.¹²³⁴⁵,Clark B. C.¹²³⁴⁵,Crisp J. A.¹²³⁴⁵,Crumpler L. S.¹²³⁴⁵,Des Marais D. J.¹²³⁴⁵,Farmer J. D.¹²³⁴⁵,Gellert R.¹²³⁴⁵,Ghosh A.¹²³⁴⁵,Gorevan S.¹²³⁴⁵,Graff T.¹²³⁴⁵,Grant J.¹²³⁴⁵,Haskin L. A.¹²³⁴⁵,Herkenhoff K. E.¹²³⁴⁵,Johnson J. R.¹²³⁴⁵,Jolliff B. L.¹²³⁴⁵,Klingelhoefer G.¹²³⁴⁵,Knudson A. T.¹²³⁴⁵,McLennan S.¹²³⁴⁵,Milam K. A.¹²³⁴⁵,Moersch J. E.¹²³⁴⁵,Morris R. V.¹²³⁴⁵,Rieder R.¹²³⁴⁵,Ruff S. W.¹²³⁴⁵,de Souza P. A.¹²³⁴⁵,Squyres S. W.¹²³⁴⁵,WaÌnke H.¹²³⁴⁵,Wang A.¹²³⁴⁵,Wyatt M. B.¹²³⁴⁵,Yen A.¹²³⁴⁵,Zipfel J.¹²³⁴⁵

Affiliation:

1. Department of Earth and Planetary Sciences, University of Tennessee, Knoxville, TN 37996â1410, USA.

2. Department of Earth and Planetary Sciences, Washington University, St. Louis, MO 63130â4899, USA.

3. Department of Astronomy, Cornell University, Ithaca, NY 14853â6801, USA.

4. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109â8099, USA.

5. NASA Ames Research Center, Moffett Field, CA 94035â1000, USA.

Abstract

The Spirit landing site in Gusev Crater on Mars contains dark, fine-grained, vesicular rocks interpreted as lavas. Pancam and MiniâThermal 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 â¤25% megacrysts. Chemical analyses of rocks by the Alpha Particle X-ray Spectrometer are consistent with picritic basalts, containing normative olivine, pyroxenes, plagioclase, and accessory FeTi oxides. MoÌssbauer, 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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference21 articles.

1. Names have been assigned to aerographic features by the Mars Exploration Rover (MER) team for planning and operations purposes. The names are not formally recognized by the International Astronomical Union.

2. Surficial Deposits at Gusev Crater Along Spirit Rover Traverses

3. The Spirit Rover's Athena Science Investigation at Gusev Crater, Mars

4. Pancam Multispectral Imaging Results from the Spirit Rover at Gusev Crater

5. Discovery of Olivine in the Nili Fossae Region of Mars

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