Search Results - "Morris, R. V."

Spectral and chemical effects of simulated space weathering of the Murchison CM2 carbonaceous chondrite by Thompson, M. S., Loeffler, M. J., Morris, R. V., Keller, L. P., Christoffersen, R.

“…•Space weathering of a carbonaceous chondrite simulated via pulsed laser irradiation.•Reflectance spectra of the melt and vapor deposits show strong…”
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Evidence for Calcium Carbonate at the Mars Phoenix Landing Site by Boynton, W.V, Ming, D.W, Kounaves, S.P, Young, S.M.M, Arvidson, R.E, Hecht, M.H, Hoffman, J, Niles, P.B, Hamara, D.K, Quinn, R.C, Smith, P.H, Sutter, B, Catling, D.C, Morris, R.V

“…Carbonates are generally products of aqueous processes and may hold important clues about the history of liquid water on the surface of Mars. Calcium carbonate…”
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Sand Mineralogy Within the Bagnold Dunes, Gale Crater, as Observed In Situ and From Orbit by Rampe, E. B., Lapotre, M. G. A., Bristow, T. F., Arvidson, R. E., Morris, R. V., Achilles, C. N., Weitz, C., Blake, D. F., Ming, D. W., Morrison, S. M., Vaniman, D. T., Chipera, S. J., Downs, R. T., Grotzinger, J. P., Hazen, R. M., Peretyazhko, T. S., Sutter, B., Tu, V., Yen, A. S., Horgan, B., Castle, N., Craig, P. I., Des Marais, D. J., Farmer, J., Gellert, R., McAdam, A. C., Morookian, J. M., Sarrazin, P. C., Treiman, A. H.

“…Curiosity investigated active eolian sands near linear dunes during Phase 2 of the Bagnold Dunes campaign in Gale crater, Mars. Ogunquit Beach, a sample…”
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Jarosite and Hematite at Meridiani Planum from Opportunity's Mössbauer Spectrometer by Klingelhöfer, G., Morris, R. V., Bernhardt, B., Schröder, C., Rodionov, D. S., de Souza, P. A., Yen, A., Gellert, R., Evlanov, E. N., Zubkov, B., Foh, J., Bonnes, U., Kankeleit, E., Gütlich, P., Ming, D. W., Renz, F., Wdowiak, T., Squyres, S. W., Arvidson, R. E.

“…Mössbauer spectra measured by the Opportunity rover revealed four mineralogical components in Meridiani Planum at Eagle crater: jarosite- and hematite-rich…”
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Detection of Silica-Rich Deposits on Mars by Squyres, S.W, Arvidson, R.E, Ruff, S, Gellert, R, Morris, R.V, Ming, D.W, Crumpler, L, Farmer, J.D, Marais, D.J. Des, Yen, A, McLennan, S.M, Calvin, W, Bell, J.F. III, Clark, B.C, Wang, A, McCoy, T.J, Schmidt, M.E, de Souza, P.A. Jr

“…Mineral deposits on the martian surface can elucidate ancient environmental conditions on the planet. Opaline silica deposits (as much as 91 weight percent…”
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Ground-based all-sky mid-infrared and visible imagery for purposes of characterizing cloud properties by Klebe, D. I, Blatherwick, R. D, Morris, V. R

“…This paper describes the All Sky Infrared Visible Analyzer (ASIVA), a multi-purpose visible and infrared sky imaging and analysis instrument whose primary…”
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Geochemical and mineralogical indicators for aqueous processes in the Columbia Hills of Gusev crater, Mars by Ming, D. W., Mittlefehldt, D. W., Morris, R. V., Golden, D. C., Gellert, R., Yen, A., Clark, B. C., Squyres, S. W., Farrand, W. H., Ruff, S. W., Arvidson, R. E., Klingelhöfer, G., McSween, H. Y., Rodionov, D. S., Schröder, C., de Souza Jr, P. A., Wang, A.

“…Water played a major role in the formation and alteration of rocks and soils in the Columbia Hills. The extent of alteration ranges from moderate to extensive…”
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Geochemical properties of rocks and soils in Gusev Crater, Mars: Results of the Alpha Particle X-Ray Spectrometer from Cumberland Ridge to Home Plate by Ming, D. W., Gellert, R., Morris, R. V., Arvidson, R. E., Brückner, J., Clark, B. C., Cohen, B. A., d'Uston, C., Economou, T., Fleischer, I., Klingelhöfer, G., McCoy, T. J., Mittlefehldt, D. W., Schmidt, M. E., Schröder, C., Squyres, S. W., Tréguier, E., Yen, A. S., Zipfel, J.

“…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…”
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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 Spirit Mars Exploration Rover by Morris, R. V., Klingelhöfer, G., Schröder, C., Fleischer, I., Ming, D. W., Yen, A. S., Gellert, R., Arvidson, R. E., Rodionov, D. S., Crumpler, L. S., Clark, B. C., Cohen, B. A., McCoy, T. J., Mittlefehldt, D. W., Schmidt, M. E., de Souza Jr, P. A., Squyres, S. W.

“…Spirit's Mössbauer (MB) instrument determined the Fe mineralogy and oxidation state of 71 rocks and 43 soils during its exploration of the Gusev plains and the…”
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Coupled Ferric Oxides and Sulfates on the Martian Surface by Bibring, J.-P, Arvidson, R.E, Gendrin, A, Gondet, B, Langevin, Y, Le Mouelic, S, Mangold, N, Morris, R.V, Mustard, J.F, Poulet, F, Quantin, C, Sotin, C

“…The Mars Exploration Rover (MER), Opportunity, showed that layered sulfate deposits in Meridiani Planum formed during a period of rising acidic ground water…”
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Mineralogy, petrology, chronology, and exposure history of the Chelyabinsk meteorite and parent body by Righter, K., Abell, P., Agresti, D., Berger, E. L., Burton, A. S., Delaney, J. S., Fries, M. D., Gibson, E. K., Haba, M. K., Harrington, R., Herzog, G. F., Keller, L. P., Locke, D., Lindsay, F. N., McCoy, T. J., Morris, R. V., Nagao, K., Nakamura‐Messenger, K., Niles, P. B., Nyquist, L. E., Park, J., Peng, Z. X., Shih, C.‐Y., Simon, J. I., Swisher, C. C., Tappa, M. J., Turrin, B. D., Zeigler, R. A.

“…Three masses of the Chelyabinsk meteorite have been studied with a wide range of analytical techniques to understand the mineralogical variation and thermal…”
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Hydrothermal processes at Gusev Crater: An evaluation of Paso Robles class soils by Yen, A. S., Morris, R. V., Clark, B. C., Gellert, R., Knudson, A. T., Squyres, S., Mittlefehldt, D. W., Ming, D. W., Arvidson, R., McCoy, T., Schmidt, M., Hurowitz, J., Li, R., Johnson, J. R.

“…The Mars Exploration Rover Spirit analyzed multiple occurrences of sulfur‐rich, light‐toned soils along its traverse within Gusev Crater. These hydrated…”
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Spectral Reflectance and Morphologic Correlations in Eastern Terra Meridiani, Mars by Arvidson, R. E, Poulet, F, Bibring, J.-P, Wolff, M, Gendrin, A, Morris, R. V, Freeman, J. J, Langevin, Y, Mangold, N, Bellucci, G

“…The Mars Express Observatoire pour la Minéralogie, l'Eau, les Glaces, et l'Activité (OMEGA) hyperspectral image data covering eastern Terra Meridiani…”
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Mineralogy at Gusev Crater from the Mössbauer Spectrometer on the Spirit Rover by Morris, R. V., Klingelhöfer, G., Bernhardt, B., Schröder, C., Rodionov, D. S., de Souza, P. A., Yen, A., Gellert, R., Evlanov, E. N., Foh, J., Kankeleit, E., Gütlich, P., Ming, D. W., Renz, F., Wdowiak, T., Squyres, S. W., Arvidson, R. E.

“…Mössbauer spectra measured on Mars by the Spirit rover during the primary mission are characterized by two ferrous iron doublets (olivine and probably…”
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Spectral and stratigraphic mapping of hydrated sulfate and phyllosilicate-bearing deposits in northern Sinus Meridiani, Mars by Wiseman, Sandra M., Arvidson, R. E., Morris, R. V., Poulet, F., Andrews-Hanna, J. C., Bishop, J. L., Murchie, S. L., Seelos, F. P., Des Marais, D., Griffes, J. L.

“…We present detailed stratigraphic and spectral analyses that focus on a region in northern Sinus Meridiani located between 1°N to 5°N latitude and 3°W to 1°E…”
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Synergistic Ground and Orbital Observations of Iron Oxides on Mt. Sharp and Vera Rubin Ridge by Fraeman, A. A., Johnson, J. R., Arvidson, R. E., Rice, M. S., Wellington, D. F., Morris, R. V., Fox, V. K., Horgan, B. H. N., Jacob, S. R., Salvatore, M. R., Sun, V. Z., Pinet, P., Bell, J. F., Wiens, R. C., Vasavada, A. R.

“…Visible/short‐wave infrared spectral data from the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) show absorptions attributed to hematite at Vera…”
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The detection of carbonate in the martian soil at the Phoenix Landing site: A laboratory investigation and comparison with the Thermal and Evolved Gas Analyzer (TEGA) data by Sutter, B., Boynton, W.V., Ming, D.W., Niles, P.B., Morris, R.V., Golden, D.C., Lauer, H.V., Fellows, C., Hamara, D.K., Mertzman, S.A.

“…► Phoenix-TEGA data consistent with carbonate detection in Mars soil. ► 3–6wt.% carbonate as calcite, dolomite, and/or ankerite. ► Magnesite and/or siderite…”
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Mineralogy of Terra Meridiani and western Arabia Terra from OMEGA/MEx and implications for their formation by Poulet, F., Arvidson, R.E., Gomez, C., Morris, R.V., Bibring, J.-P., Langevin, Y., Gondet, B., Griffes, J.

“…Analyses of Mars Express OMEGA hyperspectral data (0.4–2.7 μm) for Terra Meridiani and western Arabia Terra show that the northern mantled cratered terrains…”
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Alkaline volcanic rocks from the Columbia Hills, Gusev crater, Mars by McSween, H. Y., Ruff, S. W., Morris, R. V., Bell III, J. F., Herkenhoff, K., Gellert, R., Stockstill, K. R., Tornabene, L. L., Squyres, S. W., Crisp, J. A., Christensen, P. R., McCoy, T. J., Mittlefehldt, D. W., Schmidt, M.

“…Irvine, Backstay, and Wishstone are the type specimens for three classes of fine‐grained or fragmental, relatively unaltered rocks with distinctive thermal…”
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Effect of Solution pH and Chloride Concentration on Akaganeite Precipitation: Implications for Akaganeite Formation on Mars by Peretyazhko, T. S., Ming, D. W., Rampe, E. B., Morris, R. V., Agresti, D. G.

“…Akaganeite, a chloride‐bearing Fe(III) (hydr)oxide, has been reported on Mars in Yellowknife Bay in Gale crater by X‐ray diffraction (XRD), in Robert Sharp…”
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