DSpace Repository

Browsing Department of Mineral Sciences by Author "Schmidt, M. E."

Browsing Department of Mineral Sciences by Author "Schmidt, M. E."

Sort by: Order: Results:

  • Detection of Silica-Rich Deposits on Mars 
    Squyres, Steven W.; Arvidson, Raymond E.; Ruff, S.; Gellert, R.; Morris, R. V.; Ming, D. W.; Crumpler, Larry S.; Farmer, J. D.; Marais, D. J. Des; Yen, A.; McLennan, S. M.; Calvin, W. M.; Bell, James F., III; Clark, Benton C.; Wang, A.; McCoy, Timothy J.; Schmidt, M. E.; de Souza, P. A., Jr. (2008)
    Mineral deposits on the martian surface can elucidate ancient environmental conditions on the planet. Opaline silica deposits (as much as 91 weight percent SiO2) have been found in association with volcanic materials by ...
  • Geochemical properties of rocks and soils in Gusev Crater, Mars: Results of the Alpha Particle X-Ray Spectrometer from Cumberland Ridge to Home Plate 
    Ming, D. W.; Gellert, R.; Morris, R. V.; Arvidson, Raymond E.; Bruekner, J.; Clark, Benton C.; Cohen, B. A.; d'Uston, C.; Economou, T.; Fleischer, I.; Klingelhöfer, Göstar; McCoy, Timothy J.; Mittlefehldt, D. W.; Schmidt, M. E.; Schroeder, C.; Squyres, Steven W.; Treguier, E.; Yen, A. S.; Zipfel, J. (2008)
    Geochemical diversity of rocks and soils has been discovered by the Alpha Particle X-Ray Spectrometer ( APXS) during Spirit's journey over Husband Hill and down into the Inner Basin from sol 470 to 1368. The APXS ...
  • Hydrothermal origin of halogens at Home Plate, Gusev Crater 
    Schmidt, M. E.; Ruff, S. W.; McCoy, Timothy J.; Farrand, W. H.; Johnson, J. R.; Gellert, R.; Ming, D. W.; Morris, R. V.; Cabrol, Nathalie A.; Lewis, K. W.; Schroeder, C. (2008)
    In the Inner Basin of the Columbia Hills, Gusev Crater is Home Plate, an 80 m platform of layered clastic rocks of the Barnhill class with microscopic and macroscopic textures, including a bomb sag, suggestive of a ...
  • Iron mineralogy and aqueous alteration from Husband Hill through Home Plate at Gusev Crater, Mars: Results from the Mossbauer instrument on the Spirit Mars Exploration Rover 
    Morris, R. V.; Klingelhöfer, Göstar; Schroeder, C.; Fleischer, I.; Ming, D. W.; Yen, A. S.; Gellert, R.; Arvidson, Raymond E.; Rodionov, D. S.; Crumpler, Larry S.; Clark, Benton C.; Cohen, B. A.; McCoy, Timothy J.; Mittlefehldt, D. W.; Schmidt, M. E.; de Souza, P. A., Jr.; Squyres, Steven W. (2008)
    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, ...
  • Spectral, mineralogical, and geochemical variations across Home Plate, Gusev Crater, Mars indicate high and low temperature alteration 
    Schmidt, M. E.; Farrand, W. H.; Johnson, J. R.; Schröder, C.; Hurowitz, J. A.; McCoy, Timothy J.; Ruff, S. W.; Arvidson, Raymond E.; Des Marais, D. J.; Lewis, K. W.; Ming, D. W.; Squyres, Steven W.; de, Souza,Jr (2009)
    Over the last ~ 3 years in Gusev Crater, Mars, the Spirit rover observed coherent variations in color, mineralogy, and geochemistry across Home Plate, an ~ 80 m-diameter outcrop of basaltic tephra. Observations of Home ...

Search DSpace


Browse

My Account