Results from the Mars Global Surveyor Thermal Emission Spectrometer.

@article{Christensen1998ResultsFT,
  title={Results from the Mars Global Surveyor Thermal Emission Spectrometer.},
  author={P. R. Christensen and D. L. Anderson and Scott C. Chase and R. Todd Clancy and Roger N. Clark and Barney J. Conrath and Hugh H. Kieffer and Ruslan O. Kuzmin and Michael C. Malin and John C. Pearl and Ted L. Roush and Michael D. Smith},
  journal={Science},
  year={1998},
  volume={279 5357},
  pages={1692-8}
}
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… CONTINUE READING

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