P31F:
Nature and Evolution of Climate and Water on Early Mars I

Submit an Abstract to this Session



Session ID#: 32317

Session Description:
Major outstanding questions in the study of ancient Mars and its potential habitability include the abundance of water (oceans?); its distribution and state (liquid or solid); the manner in which impact, volcanic and spin-axis/orbital processes redistributed/sequestered water; the nature of the cryosphere and the role of groundwater; and the provenance of diverse water-related mineralogies. These questions are all related to the nature of the climate in early Mars history (Noachian). New perspectives from surface exploration of ancient playas and lakes by Spirit, Opportunity and Curiosity, remote sensing of clays and their geologic context, new assessments of water and atmospheric abundances by MAVEN, as well as refined atmospheric general circulation models all offer new insights into the conundrum of whether ancient Mars was “warm and wet” or “cold and icy”. Contributions are invited that bring new perspectives to the fundamental question of the nature and evolution of climate on Early Mars.
Primary Convener:  James W Head III, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, United States
Conveners:  Robin Wordsworth, Harvard University, School of Engineering and Applied Sciences, Cambridge, MA, United States, Laura Kerber, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States and Ashwin R Vasavada, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States
Chairs:  Robin Wordsworth, Harvard University, School of Engineering and Applied Sciences, Cambridge, MA, United States, Laura Kerber, NASA Jet Propulsion Laboratory, Pasadena, CA, United States and James W Head III, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, United States
OSPA Liaison:  Ashwin R Vasavada, Jet Propulsion Laboratory, Pasadena, CA, United States

Cross-Listed:
  • A - Atmospheric Sciences
  • B - Biogeosciences
  • C - Cryosphere
  • H - Hydrology
Index Terms:

5405 Atmospheres [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
5415 Erosion and weathering [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
5416 Glaciation [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
5419 Hydrology and fluvial processes [PLANETARY SCIENCES: SOLID SURFACE PLANETS]

Abstracts Submitted to this Session:

History of Martian Atmosphere and Volatiles Derived From MAVEN Observations (Invited) (286448)
Bruce Martin Jakosky, University of Colorado Boulder, Boulder, CO, UNITED STATES and The MAVEN Science Team
A massive hydrogen-rich Martian greenhouse recorded in D/H (263283)
Kaveh Pahlevan, SETI Institute, Mountain View, United States, Laura Schaefer, Arizona State University, School of Earth & Space Exploration, Tempe, United States, Steven J Desch, Arizona State University, School of Earth and Space Exploration, Tempe, United States and Linda T Elkins-Tanton, Arizona State University, School of Earth & Space Exploration, Tempe, AZ, United States
Atmospheric mass and the record of liquid water on Mars (238907)
Itay Halevy, Weizmann Institute of Science, Earth and Planetary Sciences, Rehovot, Israel and James W Head III, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, United States
Implications of Martian Phyllosilicate Formation Conditions to the Early Climate on Mars (214800)
Janice L Bishop, SETI Institute, Carl Sagan Center, Mountain View, United States, Leslie Baker, University of Idaho, Moscow, ID, United States, Alberto G. Fairén, Centro de Astrobiología, Madrid, Spain, Joseph R Michalski, University of Hong Kong, Department of Earth Sciences, Hong Kong, China, Luis Gago-Duport, Universidad de Vigo, Vigo, Spain, Michael Anthony Velbel, Michigan State University, Earth & Environmental Sciences, East Lansing, MI, United States, Christoph Gross, Free University of Berlin, Berlin, Germany and Elizabeth B Rampe, NASA Johnson Space Center, Houston, TX, United States
Noachian impact basins: Transient high-temperature silicate condensate deposition, hot rainfall and surface alteration. (297165)
Ashley Margaret Margaret Palumbo, Brown University, Providence, RI, United States
Climate Implications of an Ancient Lake Basin in Gale Crater, Mars (300399)
Ashwin R Vasavada, Jet Propulsion Laboratory, Pasadena, CA, United States, Ray E Arvidson, Washington University in St Louis, Department of Earth and Planetary Sciences, St. Louis, MO, United States, Kenneth S Edgett, Malin Space Science Systems, San Diego, CA, United States, Alberto G. Fairén, Center of Astrobiology, Unidad Asociada UVa-CSIC-CAB, Valladolid, Spain, Christopher Fedo, University of Tennessee, Department of Earth and Planetary Sciences, Knoxville, TN, United States, John P Grotzinger, California Institute of Technology, Pasadena, CA, United States, Sanjeev Gupta, Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, Christopher H House, Pennsylvania State University, Geosciences and Environmental Systems Institute, University Park, United States, Kevin W Lewis, Johns Hopkins University, Earth and Planetary Sciences, Baltimore, MD, United States, Dr. Frances Rivera-Hernandez, PhD, University of California Davis, Davis, CA, United States, Roger C Wiens, CNRS, Paris Cedex 16, France and The Mars Science Laboratory Science Team
Magnetite Authigenesis and the Ancient Martian Atmosphere (223901)
Nicholas James Tosca1, Imad A. Ahmed2, Alice Ashpitel2 and Joel Hurowitz3, (1)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom, (2)University of Oxford, Earth Sciences, Oxford, United Kingdom, (3)Stony Brook University, Geosciences, Stony Brook, NY, United States

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