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Browsing by Author "Mittlefehldt, D. W."

Browsing by Author "Mittlefehldt, D. W."

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  • Achondrite and irons: Products of magmatism on strongly heated asteroids 
    Mittlefehldt, D. W.; McCoy, Timothy J. (2015)
  • 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 ...
  • Asteroid Differentiation 
    McCoy, Timothy J.; Mittlefehldt, D. W.; Wilson, L. (Univ. of Arizona Press, 2006)
  • Chondritic models of 4 Vesta: Implications for geochemical and geophysical properties 
    Toplis, M. J.; Mizzon, H.; Monnereau, M.; Forni, O.; McSween, H. Y.; Mittlefehldt, D. W.; McCoy, Timothy J.; Prettyman, T. H.; De Sanctis, M. C.; Raymond, C. A.; Russell, C. T. (2013)
    Simple mass-balance and thermodynamic constraints are used to illustrate the potential geochemical and geophysical diversity of a fully differentiated Vesta-sized parent body with a eucrite crust (e.g., core size and ...
  • The degradational history of Endeavour crater, Mars 
    Grant, John A.; Parker, T. J.; Crumpler, L. S.; Wilson, Sharon A.; Golombek, M. P.; Mittlefehldt, D. W. (2016)
    Endeavour crater (2.28°S, 354.77°E) is a Noachian-aged 22 km-diameter impact structure of complex morphology in southern Meridiani Planum. The degradation state of the crater has been studied using orbital data from the ...
  • Distribution of iron on Vesta 
    Yamashita, N.; Prettyman, T. H.; Mittlefehldt, D. W.; Toplis, M. J.; McCoy, Timothy J.; Beck, Andrew W.; Reedy, R. C.; Feldman, W. C.; Lawrence, D. J.; Peplowski, P. N.; Forni, O.; Mizzon, H.; Raymond, C. A.; Russell, C. T. (2013)
    We have completed a mapping study of 7.6 MeV gamma rays produced by neutron capture by Fe at the surface of the main belt asteroid 4 Vesta as measured by the bismuth germanate scintillator of the Gamma Ray and Neutron ...
  • 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 ...
  • Hydrothermal processes at Gusev Crater: An evaluation of Paso Robles class soils 
    Yen, A. S.; Morris, R. V.; Clark, Benton C.; Gellert, R.; Knudson, A. T.; Squyres, Steven W.; Mittlefehldt, D. W.; Ming, D. W.; Arvidson, Raymond E.; McCoy, Timothy J.; Schmidt, M.; Hurowitz, J.; Johnson, J. (2008)
  • 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, ...
  • Meteorites on Mars observed with the Mars Exploration Rovers 
    Schroeder, C.; Rodionov, D. S.; McCoy, Timothy J.; Jolliff, B. L.; Gellert, R.; Nittler, L. R.; Farrand, W. H.; Johnson, J. R.; Ruff, S. W.; Ashley, J. W.; Mittlefehldt, D. W.; Herkenhoff, Kenneth E.; Fleischer, I.; Haldemann, A. F. C.; Klingelhöfer, Göstar; Ming, D. W.; Morris, R. V.; de Souza, P. A.; Squyres, Steven W.; Weitz, Catherine M.; Yen, A. S.; Zipfel, J.; Economou, T. (2008)
    Reduced weathering rates due to the lack of liquid water and significantly greater typical surface ages should result in a higher density of meteorites on the surface of Mars compared to Earth. Several meteorites were ...
  • Non-chondritic meteorites from asteroidal bodies 
    Mittlefehldt, D. W.; McCoy, Timothy J.; Goodrich, C. A.; Kracher, A. (1998)
  • Oxygen In The Solar System 
    MacPherson, Glenn J.; Mittlefehldt, D. W.; Jones, J. J. (2008)
  • Results from the first geologic traverse on the topographic rim of a complex impact crater, Endeavour Crater, Mars 
    Crumpler, L. S.; Arvidson, R. E.; Mittlefehldt, D. W.; Grant, J. A.; Farrand, W. H. (2020)
    A geologic traverse along the rim of the 22-km-diameter Endeavour Crater by the Opportunity Mars rover has provided the first field geologic observations of outcrop-scale structure and stratigraphy at a complex impact ...

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