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Organic sedimentary deposits in Titan’s dry lakebeds: Probable evaporite
Authors:Jason W Barnes  Jacob Bow  Jacob Schwartz  Robert H Brown  Jason M Soderblom  Alexander G Hayes  Graham Vixie  Stéphane Le Mouélic  Sebastien Rodriguez  Christophe Sotin  Ralf Jaumann  Katrin Stephan  Laurence A Soderblom  Roger N Clark  Bonnie J Buratti  Kevin H Baines  Philip D Nicholson
Institution:aDepartment of Physics, University of Idaho, Moscow, ID 83844-0903, USA;bUniversity of California Los Angeles, Los Angeles, CA 90095, USA;cLunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA;dDepartment of Astronomy, Cornell University, Ithaca, NY 14853, USA;eDivision of Geological and Planetary Sciences, Caltech, Pasadena, CA 91125, USA;fLaboratoire de Planétologie et Géodynamique, CNRS UMR6112, Université de Nantes, France;gLaboratoire AIM, Centre d’e˜tude de Saclay, DAPNIA/Sap, Centre de l’orme des Mérisiers, bât. 709, 91191 Gif/Yvette Cedex, France;hJet Propulsion Laboratory, Caltech, 4800 Oak Grove Drive, Pasadena, CA 91109, USA;iDLR, Institute of Planetary Research, Rutherfordstrasse 2, D-12489 Berlin, Germany;jAstrogeology Division, United States Geological Survey, Flagstaff, AZ 86001, USA;kUnited States Geological Survey, Denver, CO 80225, USA;lSpace Science and Engineering Center, University of Wisconsin-Madison, Madison, WI 53706, USA
Abstract:We report the discovery of organic sedimentary deposits at the bottom of dry lakebeds near Titan’s north pole in observations from the Cassini Visual and Infrared Mapping Spectrometer (VIMS). We show evidence that the deposits are evaporitic, making Titan just the third known planetary body with evaporitic processes after Earth and Mars, and is the first that uses a solvent other than water.
Keywords:Keyword: Titan
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