Composition of weakly altered Martian crust: Clues from imaging spectroscopy

Details Composition of weakly altered Martian crust: Clues from imaging spectroscopy Composition of weakly altered Martian crust: Clues from imaging spectroscopy

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993chwe.work...25m&link_type=abstract

In Lunar and Planetary Inst., MSATT Workshop on Chemical Weathering on Mars p 25-27 (SEE N93-31933 12-91)

Mathematics

Logic

Imaging Spectrometers, Imaging Techniques, Mars Surface, Mineralogy, Planetary Crusts, Planetary Geology, Rocks, Weathering, Clays, Oxides, Silicates, Spectroscopy, Sulfates

Scientific paper

Two of the fundamental questions regarding chemical weathering on Mars concern the following topics: the chemical pathways by which pristine crustal rocks are altered to produce observed ferric ironbearing assemblages and inferred clay silicate, sulfate, and magnetic oxide phases; and the timing of the oxidative weathering. High spatial- and spectral-resolution imaging spectrometer data provide a tool to investigate aspects of these questions for material exposed on the surface of Mars. In this study, ISM imaging spectrometer data are used to develop an inventory of least-altered crustal materials and to quantitatively model the mineralogic composition of the weakly altered crustal rocks.

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