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Browsing by Author "Cohen, B. A."

Browsing by Author "Cohen, B. A."

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  • Ancient Impact and Aqueous Processes at Endeavour Crater, Mars 
    Squyres, S. W.; Arvidson, R. E.; Bell, J. F.; Calef, F.; Clark, B. C.; Cohen, B. A.; Crumpler, L. A.; De Souza, P. A.; Farrand, W. H.; Gellert, R.; Grant, John A.; Herkenhoff, K. E.; Hurowitz, J. A.; Johnson, J. R.; Jolliff, B. L.; Knoll, A. H.; Li, R.; McLennan, S. M.; Ming, D. W.; Mittlefehldt, D. W.; Parker, T. J.; Paulsen, G.; Rice, M. S.; Ruff, S. W.; Schröder, C.; Yen, A. S.; Zacny, K. (2012)
    The rover Opportunity has investigated the rim of Endeavour Crater, a large ancient impact crater on Mars. Basaltic breccias produced by the impact form the rim deposits, with stratigraphy similar to that observed at ...
  • Context of Ancient Aqueous Environments on Mars from In Situ Geologic Mapping at Endeavour Crater 
    Crumpler, L. S.; Arvidson, R. E.; Bell, J.; Clark, B. C.; Cohen, B. A.; Farrand, W. H.; Gellert, R.; Golombek, M.; Grant, John A.; Guinness, E.; Herkenhoff, K. E. (2015)
  • Degradation of Victoria Crater, Mars 
    Grant, John A.; Wilson, Sharon A.; Cohen, B. A.; Golombek, M. P.; Geissler, P. E.; Sullivan, R. J.; Kirk, R. L.; Parker, T. J. (2008)
  • Exploration of Victoria Crater by the Mars Rover Opportunity 
    Squyres, Steven W.; Knoll, A. H.; Arvidson, Raymond E.; Ashley, J. W.; Bell, James F., III; Calvin, W. M.; Christensen, Philip R.; Clark, Benton C.; Cohen, B. A.; de Souza, P. A., Jr.; Edgar, L.; Farrand, W. H.; Fleischer, I.; Gellert, R.; Golombek, M. P.; Grant, John A.; Grotzinger, J.; Hayes, A.; Herkenhoff, Kenneth E.; Johnson, J. R.; Jolliff, B.; Klingelhöfer, Göstar; Knudson, A.; Li, R.; McCoy, Timothy J.; McLennan, S. M.; Ming, D. W.; Mittlefehldt, D. W.; Morris, R. V.; Rice, J. W., Jr.; Schroder, C.; Sullivan, R. J.; Yen, A.; Yingst, R. A. (2009)
    The Mars rover Opportunity has explored Victoria crater, a ~750-meter eroded impact crater formed in sulfate-rich sedimentary rocks. Impact-related stratigraphy is preserved in the crater walls, and meteoritic debris is ...
  • 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 ...
  • 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, ...
  • Mineralogy of volcanic rocks in Gusev Crater, Mars: Reconciling Mossbauer, Alpha Particle X-ray spectrometer, and Miniature Thermal Emission Spectrometer spectra 
    McSween, Harry Y.; Ruff, S. W.; Morris, R. V.; Gellert, R.; Klingelhöfer, Göstar; Christensen, Philip R.; McCoy, Timothy J.; Ghosh, A.; Moersch, J. M.; Cohen, B. A.; Rogers, A. D.; Schroder, C.; Squyres, Steven W.; Crisp, J.; Yen, A. (2008)
  • Pyroclastic activity at Home Plate in Gusev Crater, Mars 
    Squyres, Steven W.; Aharonson, O.; Clark, Benton C.; Cohen, B. A.; Crumpler, Larry S.; de Souza, P. A.; Farrand, W. H.; Gellert, R.; Grant, John A.; Grotzinger, J. P.; Haldemann, A. F.; Johnson, J. R.; Klingelhöfer, Göstar; Lewis, K. W.; Li, R.; McCoy, Timothy J.; Mcewen, A. S.; McSween, Harry Y.; Ming, D. W.; Moore, J. M.; Morris, R. V.; Parker, T. J.; Rice, J. W.,Jr.; Ruff, S.; Schmidt, M.; Schroder, C.; Soderblom, L. A.; Yen, A. (2007)
    Home Plate is a layered plateau in Gusev crater on Mars. It is composed of clastic rocks of moderately altered alkali basalt composition, enriched in some highly volatile elements. A coarsegrained lower unit lies under a ...
  • Structure, stratigraphy, and origin of Husband Hill, Columbia Hills, Gusev Crater, Mars 
    McCoy, Timothy J.; Sims, M.; Schmidt, M. E.; Edwards, L.; Tornabene, Livio L.; Crumpler, Larry S.; Cohen, B. A.; Soderblom, L. A.; Blaney, Diana L.; Squyres, Steven W.; Arvidson, Raymond E.; Rice, J. W.; Treguier, E.; d'Uston, C.; Grant, John A.; McSween, Harry Y.; Golombek, M. P.; Haldemann, A. F. C.; de Souza, P. A. (2008)
    The strike and dip of lithologic units imaged in stereo by the Spirit rover in the Columbia Hills using three-dimensional imaging software shows that measured dips (15-32 degrees) for bedding on the main edifice of the ...

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