Search results for "Marcasite"

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Iron mineralogy and aqueous alteration from Husband Hill through Home Plate at Gusev Crater, Mars: Results from the Mössbauer instrument on the Spiri…

2008

[1] Spirit's Mossbauer (MB) instrument determined the Fe mineralogy and oxidation state of 71 rocks and 43 soils during its exploration of the Gusev plains and the Columbia Hills (West Spur, Husband Hill, Haskin Ridge, northern Inner Basin, and Home Plate) on Mars. The plains are predominantly float rocks and soil derived from olivine basalts. Outcrops at West Spur and on Husband Hill have experienced pervasive aqueous alteration as indicated by the presence of goethite. Olivine-rich outcrops in a possible mafic/ultramafic horizon are present on Haskin Ridge. Relatively unaltered basalt and olivine basalt float rocks occur at isolated locations throughout the Columbia Hills. Basalt and oliv…

Atmospheric ScienceGeochemistrySoil ScienceMineralogyWeatheringPyroxeneAquatic Scienceengineering.materialOceanographyGeochemistry and PetrologyUltramafic rockEarth and Planetary Sciences (miscellaneous)MarcasiteEarth-Surface ProcessesWater Science and TechnologyBasaltOlivineEcologyPaleontologyForestryPalagoniteGeophysicsSpace and Planetary ScienceengineeringMaficGeologyJournal of Geophysical Research
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