Chemistry of Rocks and Soils at Meridiani Planum from the Alpha Particle X-ray Spectrometer-Reference-Cited by-同舟云学术

Chemistry of Rocks and Soils at Meridiani Planum from the Alpha Particle X-ray Spectrometer

Published:2004-12-03 Issue:5702 Volume:306 Page:1746-1749
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Rieder R.¹²³⁴⁵,Gellert R.¹²³⁴⁵,Anderson R. C.¹²³⁴⁵,Brückner J.¹²³⁴⁵,Clark B. C.¹²³⁴⁵,Dreibus G.¹²³⁴⁵,Economou T.¹²³⁴⁵,Klingelhöfer G.¹²³⁴⁵,Lugmair G. W.¹²³⁴⁵,Ming D. W.¹²³⁴⁵,Squyres S. W.¹²³⁴⁵,d'Uston C.¹²³⁴⁵,Wänke H.¹²³⁴⁵,Yen A.¹²³⁴⁵,Zipfel J.¹²³⁴⁵

Affiliation:

1. Max-Planck-Institut für Chemie, J. J. Becher-Weg 27, D-55128 Mainz, Germany.

2. Institut für Anorganische und Analytische Chemie, J. Gutenberg-Universität, D-55128 Mainz, Germany.

3. Jet Propulsion Laboratory, Pasadena, CA 911091, USA.

4. Lockheed Martin Corporation, Littleton, CO 80127, USA.

5. Laboratory for Astrophysics and Space Research, Enrico Fermi Institute, Chicago, IL 60637, USA.

Abstract

The Alpha Particle X-ray Spectrometer on the Opportunity rover determined major and minor elements of soils and rocks in Meridiani Planum. Chemical compositions differentiate between basaltic rocks, evaporite-rich rocks, basaltic soils, and hematite-rich soils. Although soils are compositionally similar to those at previous landing sites, differences in iron and some minor element concentrations signify the addition of local components. Rocky outcrops are rich in sulfur and variably enriched in bromine relative to chlorine. The interaction with water in the past is indicated by the chemical features in rocks and soils at this site.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference22 articles.

1. Detection of crystalline hematite mineralization on Mars by the Thermal Emission Spectrometer: Evidence for near-surface water

2. 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.

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4. R. Rieder et al., J. Geophys. Res.108, 8066 (2003).

5. The term martian soil is used here to denote any loose unconsolidated materials that can be distinguished from rocks bedrock or strongly cohesive sediments. No implication of the presence or absence of organic materials or living matter is intended.

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