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Browsing Ed Cloutis by Issue Date

Browsing Ed Cloutis by Issue Date

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  • Cloutis, Edward A.; Gaffey, Michael J.; Jackowski, Timothy L.; Reed, Kevin L. (American Geophysical Union, 1986-10-10)
    Spectral reflectance measurements of characterized (phase abundance, particle size) mixtures of olivine and orthopyroxene were utilized to define the correlations between spectral and albedo parameters of such assemblages ...
  • Cloutis, Edward A.; Gaffey, Michael J.; Smith, Dorian G.W.; St. J. Lambert, Richard (Journal of Geophysical Research, 1990-01-10)
    The 0.3- to 2.6-μm reflectance spectra of meteoritic enstatite (nearly pure MgSiO3), iron meteorite metal, magnetite and amorphous carbon, and various mixtures of these materials with mafic silicates have been measured in ...
  • Cloutis, Edward A.; Gaffey, Michael J.; Smith, Dorian G. W.; St. J. Lambert, Richard (Journal of Geophysical Research, 1990-06-10)
    The reflectance spectra of combinations of olivine, orthopyroxene, and iron meteorite metal show systematic variations in spectral properties which can be used to constrain many of the physical and chemical properties of ...
  • Cloutis, Edward A.; Gaffey, Michael J. (Journal of Geophysical Research, 1991-12-25)
    Pyroxene reflectance and transmittance spectra have been examined in a search for systematic relationships between spectral features and compositional variations and to assess the applicability of reflectance spectroscopy ...
  • Cloutis, Edward A. (Journal of Geophysical Research, 1997-11-25)
    Reflectance spectra of manganese-rich olivines were examined to determine which spectral features allow these minerals to be distinguished from forsteritic-fayalitic olivines. The results indicate that manganese-rich ...
  • Cloutis, Edward A; Bell, James F. III (Journal of Geophysical Research, 2000-03-25)
    Differences in spectral reflectance properties (0.3-26 μm) of a suite of metal hydroxides (gibbsite, böhmite, diaspore, goethite, and manganite) have been found to be a function of both structural and compositional differences ...
  • Cloutis, Edward A. (Journal of Geophysical Research, 2002-06-13)
    Reflectance spectra of a suite of compositionally diverse pyroxenes exhibit variable spectral properties which are associated with various elemental substitutions. Those associated with transition series elements, such as ...
  • Attas, Michael; Cloutis, Edward; Collins, Catherine; Goltz, Douglas; Majzels, Claudine; Mansfield, James R.; Mantscha, Henry H. (Leonardo Electronic Archive, 2002-09)
  • Cloutis, Edward A.; Asher, Pranoti M.; Mertzman, Stanley A. (Journal of Geophysical Research, 2002-09-25)
    The 0.3- to 26-μm reflectance spectra of a suite of 28 zeolites were measured and analyzed to derive spectral-compositional-structural relationships. Below ~7 μm, the spectra are largely dominated by absorption features ...
  • Attas, Michael; Cloutis, Edward; Collins, Catherine; Goltz, Douglas; Majzels, Claudine; Mansfield, James R.; Mantsch, Henry H. (The MIT Press, 2003-08-01)
  • Johnson, J. R.; Bell, J. F. III; Cloutis, E.; Staid, M.; Farrand, W. H.; McCoy, T.; Rice, M.; Wang, A.; Yen, A. (Geophysical Research Letters, 2007-07-06)
    The Mars Exploration Rover (MER) Spirit excavated sulfur-rich soils exhibiting high albedo and relatively white to yellow colors at three main locations on and south of Husband Hill in Gusev crater, Mars. The multispectral ...
  • Cloutis, Edward A.; Craig, Michael A.; Mustard, John F.; Kruzelecky, Roman V.; Jamroz, Wes R.; Scott, Alan; Bish, David L.; Poulet, François; Bibring, Jean-Pierre; King, Penelope L. (Geophysical Research Letters, 2007-10-20)
    The validity of recent identification of various hydrated minerals (kieserite, gypsum, hexahydrite, nontronite, chamosite, and montmorillonite) on Mars was assessed by exposing these minerals to simulated Martian surface ...
  • Wang, Alian; Bell, J. F. III; Li, Ron; Johnson, J. R.; Farrand, W. H.; Cloutis, E. A.; Arvidson, R. E.; Crumpler, L.; Squyres, S. W.; McLennan, S. M.; Herkenhoff, K. E.; Ruff, S. W.; Knudson, A. T.; Chen, Wei; Greenberger, R. (Journal of Geophysical Research, 2008-12-19)
    Light-toned soils were exposed, through serendipitous excavations by Spirit Rover wheels, at eight locations in the Columbia Hills. Their occurrences were grouped into four types on the basis of geomorphic settings. At ...
  • Horgan, B. H.; Bell, J. F. III; Noe Dobrea, E. Z.; Cloutis, E. A.; Bailey, D. T.; Craig, M. A.; Roach, L. H.; Mustard, J. F. (Journal of Geophysical Research, 2009-01-28)
    The previous discovery of extensive deposits of hydrated minerals in Olympia Planum in the north polar region of Mars by the Mars Express OMEGA instrument raises important questions about the origin and subsequent ...
  • Rice, M. S.; Bell, J. F. III; Cloutis, E. A.; Wray, J. J.; Herkenhoff, K. E.; Sullivan, R.; Johnson, J. R.; Anderson, R. B (Journal of Geophysical Research, 2011-01-27)
    The Mars Exploration Rover Spirit has discovered bright soil deposits in its wheel tracks that previously have been confirmed to contain ferric sulfates and/or opaline silica. Repeated Pancam multispectral observations ...
  • Olsen, K. S.; Cloutis, E.; Strong, K. (Geophysical Research Letters, 2012-10-11)
    Intense interest in the characteristics of a methane source on Mars has been spurred by recent observations of a plume structure. The current NASA Mars Science Laboratory and future landers and orbiters will be tasked with ...
  • Goltz, Douglas M.; Piniuta, Brent; Huebner, Erwin; Attas, Michael; Cloutis, Edward; Broomhead, John (International Journal of Conservation Science, 2013-01-01)
    In this study we describe the application of X-ray fluorescence, variable pressure scanning electron microscopy and visible (420-720 nm) hyperspectral imaging to assess the surface properties of a wood tally stick that was ...
  • Vandaele, Ann C.; Willame, Yannick; Depiesse, Cédric; Thomas, Ian R.; Robert, Séverine; Bolsée, David; Patel, Manish R.; Mason, Jon P.; Leese, Mark; Lesschaeve, Stefan; Antoine, Philippe; Daerden, Frank; Delanoye, Sofie; Drummond, Rachel; Neefs, Eddy; Ristic, Bojan; Lopez-Moreno, José-Juan; Bellucci, Giancarlo; NOMAD Team, NOMAD Team (Optics Express, 2015-11-09)
    The NOMAD instrument has been designed to best fulfil the science objectives of the ExoMars Trace Gas Orbiter mission that will be launched in 2016. The instrument is a combination of three channels that cover the UV, ...
  • Greenberger, Rebecca N.; Mustard, John F.; Ehlmann, Bethany L.; Blaney, Diana L.; Cloutis, Edward A.; Wilson, Janette H.; Green, Robert O.; Fraeman, Abigail A. (GSA Today, 2015-12-01)
    Imaging spectroscopy is a powerful, non-destructive mineralogic tool that provides insights into a variety of geological processes. This remote measurement technique has been used for decades from orbital or aerial platforms ...
  • Li (李荐扬), Jian-Yang; Reddy, Vishnu; Nathues, Andreas; Le Corre, Lucille; Izawa, Matthew R. M.; Cloutis, Edward A.; Sykes, Mark V.; Carsenty, Uri; Castillo-Rogez, Julie C.; Hoffmann, Martin; Jaumann, Ralf; Krohn, Katrin; Mottola, Stefano; Prettyman, Thomas H.; Schaefer, Michael; Schenk, Paul; Schröder, Stefan E.; Williams, David A.; Smith, David E.; Zuber, Maria T.; Konopliv, Alexander S.; Park, Ryan S.; Raymond, Carol A.; Russell, Christopher T. (The Astrophysical Journal Letters, 2016-01-29)
    Previous observations suggested that Ceres has active, but possibly sporadic, water outgassing as well as possibly varying spectral characteristics over a timescale of months. We used all available data of Ceres collected ...

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