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Results from the Mars global surveyor thermal emission spectrometer

Science

By:
, , , , , , , , , , ,
DOI: 10.1126/science.279.5357.1692

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Abstract

The Thermal Emission Spectrometer spectra of low albedo surface materials suggests that a four to one mixture of pyroxene to plagioclase, together with about a 35 percent dust component provides the best fit to the spectrum. Qualitative upper limits can be placed on the concentration of carbonates (<10 percent), olivine (<10 percent), clay minerals (<20 percent), and quartz (<5 percent) in the limited regions observed. Limb observations in the northern hemisphere reveal low-lying dust hazes and detached water-ice clouds at altitudes up to 55 kilometers. At an aerocentric longitude of 224??a major dust storm developed in the Noachis Terra region. The south polar cap retreat was similar to that observed by Viking.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Results from the Mars global surveyor thermal emission spectrometer
Series title:
Science
DOI:
10.1126/science.279.5357.1692
Volume
279
Issue:
5357
Year Published:
1998
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
1692
Last page:
1696
Number of Pages:
5