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  • 1.
    Arvidson, R. E.
    et al.
    Department of Earth and Planetary Sciences, Washington University, St. Louis, MO 63130, United States.
    Ashley, J. W.
    School of Earth and Space Exploration, Mars Space Flight Facility, Arizona State University, Tempe, AZ 85287, United States.
    Bell III, J. F.
    Department of Astronomy, Cornell University, Ithaca, NY 14853, United States.
    Chojnacki, M.
    Planetary Geosciences Institute, Department of Earth and Planetary Sciences, University of Tennessee, Knoxville, TN 37996, United States.
    Cohen, J.
    Honeybee Robotics Spacecraft Mechanisms Corporation, 460 W. 34th St., New York, NY 10001, United States.
    Economou, T. E.
    Laboratory for Astrophysics and Space Research, Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, United States.
    Farrand, W. H.
    Space Science Institute, 4750 Walnut St., Boulder, CO 80301, United States.
    Fergason, R.
    U.S. Geological Survey, 2255 N. Gemini Dr., Flagstaff, AZ 86001, United States.
    Fleischer, I.
    Institut für Anorganische und Analytische Chemie, Johannes Gutenberg-Universität, D-55099 Mainz, Germany.
    Geissler, P.
    U.S. Geological Survey, 2255 N. Gemini Dr., Flagstaff, AZ 86001, United States.
    Gellert, R.
    Department of Physics, University of Guelph, Guelph, ON N1G 2W1, Canada.
    Golombek, M. P.
    Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, United States.
    Grotzinger, J. P.
    Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, United States.
    Guinness, E. A.
    Department of Earth and Planetary Sciences, Washington University, St. Louis, MO 63130, United States.
    Haberle, R. M.
    NASA Ames Research Center, Moffett Field, CA 94035, United States.
    Herkenhoff, K. E.
    U.S. Geological Survey, 2255 N. Gemini Dr., Flagstaff, AZ 86001, United States.
    Herman, J. A.
    Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, United States.
    Iagnemma, Karl
    MIT, USA.
    Jolliff, B. L.
    Department of Earth and Planetary Sciences, Washington University, St. Louis, MO 63130, United States.
    Johnson, J. R.
    U.S. Geological Survey, 2255 N. Gemini Dr., Flagstaff, AZ 86001, United States.
    Klingelhöfer, G.
    Institut für Anorganische und Analytische Chemie, Johannes Gutenberg-Universität, D-55099 Mainz, Germany.
    Knoll, A. H.
    Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, United States.
    Knudson, A. T.
    Planetary Science Institute, 1700 East Fort Lowell, Tucson, AZ 85719, United States.
    Li, R.
    Department of Civil and Environmental Engineering and Geodetic Science, Ohio State University, Columbus, OH 43210, United States.
    McLennan, S. M.
    Department of Geosciences, State University of New York at Stony Brook, Stony Brook, NY 11794, United States.
    Mittlefehldt, D. W.
    NASA Johnson Space Center, Houston, TX 77058, United States.
    Morris, R. V.
    NASA Johnson Space Center, Houston, TX 77058, United States.
    Parker, T. J.
    Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109, United States.
    Rice, M. S.
    Department of Astronomy, Cornell University, Ithaca, NY 14853, United States.
    Schröder, C.
    Department of Hydrology, University of Bayreuth, Bayreuth, Germany.
    Soderblom, L. A.
    U.S. Geological Survey, 2255 N. Gemini Dr., Flagstaff, AZ 86001, United States.
    Squyres, S. W.
    Department of Astronomy, Cornell University, Ithaca, NY 14853, United States.
    Sullivan, R. J.
    Department of Astronomy, Cornell University, Ithaca, NY 14853, United States.
    Wolff, M. J.
    Space Science Institute, 4750 Walnut St., Boulder, CO 80301, United States.
    Opportunity Mars Rover mission: Overview and selected results from Purgatory ripple to traverses to Endeavour crater2011In: Journal of Geophysical Research, ISSN 0148-0227, E-ISSN 2156-2202, Vol. 116, p. E00F15-Article in journal (Refereed)
    Abstract [en]

    Opportunity has been traversing the Meridiani plains since 25 January 2004 (sol 1), acquiring numerous observations of the atmosphere, soils, and rocks. This paper provides an overview of key discoveries between sols 511 and 2300, complementing earlier papers covering results from the initial phases of the mission. Key new results include (1) atmospheric argon measurements that demonstrate the importance of atmospheric transport to and from the winter carbon dioxide polar ice caps; (2) observations showing that aeolian ripples covering the plains were generated by easterly winds during an epoch with enhanced Hadley cell circulation; (3) the discovery and characterization of cobbles and boulders that include iron and stony-iron meteorites and Martian impact ejecta; (4) measurements of wall rock strata within Erebus and Victoria craters that provide compelling evidence of formation by aeolian sand deposition, with local reworking within ephemeral lakes; (5) determination that the stratigraphy exposed in the walls of Victoria and Endurance craters show an enrichment of chlorine and depletion of magnesium and sulfur with increasing depth. This result implies that regional-scale aqueous alteration took place before formation of these craters. Most recently, Opportunity has been traversing toward the ancient Endeavour crater. Orbital data show that clay minerals are exposed on its rim. Hydrated sulfate minerals are exposed in plains rocks adjacent to the rim, unlike the surfaces of plains outcrops observed thus far by Opportunity. With continued mechanical health, Opportunity will reach terrains on and around Endeavour's rim that will be markedly different from anything examined to date. Copyright 2011 by the American Geophysical Union.

  • 2.
    Arvidson, R. E.
    et al.
    Department of Earth and Planetary Sciences, Washington University in St. Louis, St. Louis, MO, United States.
    Bell III, J. F.
    Department of Astronomy, Cornell University, Ithaca, NY, United States.
    Bellutta, P.
    Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States.
    Cabrol, N. A.
    NASA Ames Research Center, Moffett Field, CA, United States.
    Catalano, J. G.
    Department of Earth and Planetary Sciences, Washington University in St. Louis, St. Louis, MO, United States.
    Cohen, J.
    Honeybee Robotics Spacecraft Mechanisms Corporation, New York, NY, United States.
    Crumpler, L. S.
    New Mexico Museum of Natural History and Science, Albuquerque, United States.
    Marais, D. J. Des
    NASA Ames Research Center, Moffett Field, CA, United States.
    Estlin, T. A.
    Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States.
    Farrand, W. H.
    Space Science Institute, Boulder, CO, United States.
    Gellert, R.
    Department of Physics, University of Guelph, Guelph, ON, Canada.
    Grant, J. A.
    Center for Earth and Planetary Studies, Smithsonian Institution, Washington, DC, United States.
    Greenberger, R. N.
    Department of Earth and Planetary Sciences, Washington University in St. Louis, St. Louis, MO, United States.
    Guinness, E. A.
    Department of Earth and Planetary Sciences, Washington University in St. Louis, St. Louis, MO, United States.
    Herkenhoff, K. E.
    U.S. Geological Survey, Flagstaff, AZ, United States.
    Herman, J. A.
    Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States.
    Iagnemma, Karl
    Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States.
    Johnson, J. R.
    U.S. Geological Survey, Flagstaff, AZ, United States.
    Klingelhöfer, G.
    Institut für Anorganische und Analytische Chemie, Johannes Gutenberg-Universität, Mainz, Germany.
    Li, R.
    Department of Civil and Environmental Engineering and Geodetic Science, Ohio State University, Columbus, OH, United States.
    Lichtenberg, K. A.
    Department of Earth and Planetary Sciences, Washington University in St. Louis, St. Louis, MO, United States.
    Maxwell, S. A.
    Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States.
    Ming, D. W.
    NASA Johnson Space Center, Houston, TX, United States.
    Morris, R. V.
    NASA Johnson Space Center, Houston, TX, United States.
    Rice, M. S.
    Department of Astronomy, Cornell University, Ithaca, NY, United States.
    Ruff, S. W.
    School of Earth and Space Exploration, Arizona State University, Tempe, AZ, United States.
    Shaw, A.
    Department of Earth and Planetary Sciences, Washington University in St. Louis, St. Louis, MO, United States.
    Siebach, K. L.
    Department of Earth and Planetary Sciences, Washington University in St. Louis, St. Louis, MO, United States.
    de Souza, P. A.
    Information and Communication Technologies Centre, CSIRO, Hobart, Australia.
    Stroupe, A. W.
    Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States.
    Squyres, S. W.
    Department of Astronomy, Cornell University, Ithaca, NY, United States.
    Sullivan, R. J.
    Department of Astronomy, Cornell University, Ithaca, NY, United States.
    Talley, K. P.
    Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States.
    Townsend, J. A.
    Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States.
    Wang, A.
    Department of Earth and Planetary Sciences, Washington University in St. Louis, St. Louis, MO, United States.
    Wright, J. R.
    Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States.
    Yen, A. S.
    Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States.
    Spirit Mars Rover Mission: Overview and selected results from the northern Home Plate Winter Haven to the side of Scamander crater2010In: Journal of Geophysical Research, ISSN 0148-0227, E-ISSN 2156-2202, Vol. 115, no 9, p. E00F03-Article in journal (Refereed)
1 - 2 of 2
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