Cited by 173Planetary Science and ExplorationAstro and Planetary ScienceGeochemistry and Geologic Mapping

Initial results from the Mini-TES experiment in Gusev crater from the Spirit rover

Christensen, P. R., Ruff, S. W., Fergason, R. L., Knudson, A. T., Anwar, S., Arvidson, R. E., Bandfield, J. L., Blaney, D. L. +19 more·2004·Science

Abstract

The Miniature Thermal Emission Spectrometer (Mini-TES) on Spirit has studied the mineralogy and thermophysical properties at Gusev crater. Undisturbed soil spectra show evidence for minor carbonates and bound water. Rocks are olivinerich basalts with varying degrees of dust and other coatings. Dark-toned soils observed on disturbed surfaces may be derived from rocks and have derived mineralogy (±5 to 10%) of 45% pyroxene (20% Ca-rich pyroxene and 25% pigeonite), 40% sodic to intermediate plagioclase, and 15% olivine (forsterite 45% ±5 to 10). Two spectrally distinct coatings are observed on rocks, a possible indicator of the interaction of water, rock, and airfall dust. Diurnal temperature data indicate particle sizes from 40 to 80 μm in hollows to ∼0.5 to 3 mm in soils.

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Crossref · 10.1126/science.1100564

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Authors
Christensen, P. R., Ruff, S. W., Fergason, R. L., Knudson, A. T., Anwar, S., Arvidson, R. E., Bandfield, J. L., Blaney, D. L., Budney, C., Calvin, W. M., Glotch, T. D., Golombek, M. P., Gorelick, N., Graff, T. G., Hamilton, V. E., Hayes, A., Johnson, J. R., McSween, H. Y., Mehall, G. L., Mehall, L. K., Moersch, J. E., Morris, R. V., Rogers, A. D., Smith, M. D., Squyres, S. W., Wolff, M. J., & Wyatt, M. B.
Affiliations
  • University of Hawaiʻi at Mānoa (US)
  • Department of Geological Sciences, Arizona State University, Tempe, AZ 85287, USA.
Corresponding author
Christensen, P. R.
Venue
Science
Published
2004-08-06
Volume
305
Issue
5685
Pages
837-842
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2099518375
Cited by
173
References
32
Citations by year
2026: 2 · 2024: 3 · 2023: 3 · 2022: 5 · 2021: 7 · 2020: 7 · 2019: 5 · 2018: 4 · 2017: 4 · 2016: 4 · 2015: 8 · 2014: 4 · 2013: 3 · 2012: 6
FWCI
11.99
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Planetary Science and Exploration
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astro and Planetary Science
  • Physical Sciences › Computer Science › Artificial Intelligence › Geochemistry and Geologic Mapping
Keywords
Spirit rover, Gusev Crater, Mars mineralogy, thermophysical properties, carbonates, bound water, pyroxene, plagioclase, olivine, diurnal temperature, particle size, Martian soil
MeSH terms
Carbonates, Interferometry, Minerals, Oxides, Spectrum Analysis, Temperature, Water, Magnesium Compounds, Silicates, Mars, Geologic Sediments, Iron Compounds

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