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Cryovolcanism on Ceres.
Ruesch, O; Platz, T; Schenk, P; McFadden, L A; Castillo-Rogez, J C; Quick, L C; Byrne, S; Preusker, F; O'Brien, D P; Schmedemann, N; Williams, D A; Li, J-Y; Bland, M T; Hiesinger, H; Kneissl, T; Neesemann, A; Schaefer, M; Pasckert, J H; Schmidt, B E; Buczkowski, D L; Sykes, M V; Nathues, A; Roatsch, T; Hoffmann, M; Raymond, C A; Russell, C T.
Affiliation
  • Ruesch O; NASA Goddard Space Flight Center/Universities Space Research Association (USRA), Greenbelt, MD, USA. ottaviano.ruesch@nasa.gov.
  • Platz T; Max Planck Institute for Solar System Research, Göttingen, Germany.
  • Schenk P; Lunar and Planetary Science Institute, Houston, TX, USA.
  • McFadden LA; NASA Goddard Space Flight Center, Greenbelt, MD, USA.
  • Castillo-Rogez JC; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA.
  • Quick LC; Planetary Science Institute, Tucson, AZ, USA.
  • Byrne S; Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, USA.
  • Preusker F; German Aerospace Center (DLR), Berlin, Germany.
  • O'Brien DP; Planetary Science Institute, Tucson, AZ, USA.
  • Schmedemann N; Institute of Geosciences, Freie Universität Berlin, Berlin, Germany.
  • Williams DA; School of Earth and Space Exploration, Arizona State University, Tempe, AZ, USA.
  • Li JY; Planetary Science Institute, Tucson, AZ, USA.
  • Bland MT; U.S. Geological Survey, Astrogeology Science Center, Flagstaff, AZ, USA.
  • Hiesinger H; Institut für Planetologie, Westfälische Wilhelms-Universität, Münster, Germany.
  • Kneissl T; Institute of Geosciences, Freie Universität Berlin, Berlin, Germany.
  • Neesemann A; Institute of Geosciences, Freie Universität Berlin, Berlin, Germany.
  • Schaefer M; Max Planck Institute for Solar System Research, Göttingen, Germany.
  • Pasckert JH; Institut für Planetologie, Westfälische Wilhelms-Universität, Münster, Germany.
  • Schmidt BE; Georgia Institute of Technology, Atlanta, GA, USA.
  • Buczkowski DL; Johns Hopkins Applied Physics Laboratory, Laurel, MD, USA.
  • Sykes MV; Planetary Science Institute, Tucson, AZ, USA.
  • Nathues A; Max Planck Institute for Solar System Research, Göttingen, Germany.
  • Roatsch T; German Aerospace Center (DLR), Berlin, Germany.
  • Hoffmann M; Max Planck Institute for Solar System Research, Göttingen, Germany.
  • Raymond CA; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA.
  • Russell CT; Department of Earth and Space Sciences, University of California, Los Angeles, CA, USA.
Science ; 353(6303)2016 09 02.
Article in En | MEDLINE | ID: mdl-27701087
ABSTRACT
Volcanic edifices are abundant on rocky bodies of the inner solar system. In the cold outer solar system, volcanism can occur on solid bodies with a water-ice shell, but derived cryovolcanic constructs have proved elusive. We report the discovery, using Dawn Framing Camera images, of a landform on dwarf planet Ceres that we argue represents a viscous cryovolcanic dome. Parent material of the cryomagma is a mixture of secondary minerals, including salts and water ice. Absolute model ages from impact craters reveal that extrusion of the dome has occurred recently. Ceres' evolution must have been able to sustain recent interior activity and associated surface expressions. We propose salts with low eutectic temperatures and thermal conductivities as key drivers for Ceres' long-term internal evolution.
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Collection: 01-internacional Database: MEDLINE Language: En Journal: Science Year: 2016 Document type: Article Affiliation country: United States
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Collection: 01-internacional Database: MEDLINE Language: En Journal: Science Year: 2016 Document type: Article Affiliation country: United States