P33B:
Mars Underground: Subsurface Waters, Diagenesis, Hydrothermal/Metamorphic Processes, and Their Importance for Planetary Evolution II Posters

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Session ID#: 26952

Session Description:
Observations from orbiting and landed missions and hydrological modeling point to abundant water underground on early Mars over most parts of the planet. Orbital data indicate a wealth of mineralogic evidence for groundwater-fed lakes and playas, subsurface fluid circulation, and hydrothermal or metamorphic processes. In situ data at the MER and MSL landing sites provide evidence of multiple episodes of diagenesis and underground aqueous alteration of sedimentary rocks. Moreover, hydrological modeling predicts that subsurface water played an important role in the hydrological cycle, and geophysical modeling predicts this underground circulation could have affected early heat flow. Underground aquifers are also important as stable, long-lived habitable environments on early Mars. Here we seek contributions that describe the nature of water flow through underground aquifers as well as the consequences of such flow as preserved in the martian geologic record. Contributions from modeling or observations from missions and meteorite study are welcome.
Primary Convener:  Bethany L Ehlmann, California Institute of Technology, Geological and Planetary Sciences, Pasadena, CA, United States
Conveners:  Jeffrey C Andrews-Hanna, Colorado School of Mines, Golden, United States and Marion Nachon, University of California Davis, Davis, CA, United States
Chairs:  Marion Nachon, University of California Davis, Davis, CA, United States, Bethany L Ehlmann, California Institute of Technology, Geological and Planetary Sciences, Pasadena, CA, United States and Jeffrey C Andrews-Hanna, Colorado School of Mines, Golden, United States
OSPA Liaison:  Bethany L Ehlmann, California Institute of Technology, Geological and Planetary Sciences, Pasadena, CA, United States

Cross-Listed:
  • B - Biogeosciences
  • H - Hydrology
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

0450 Hydrothermal systems [BIOGEOSCIENCES]
5220 Hydrothermal systems and weathering on other planets [PLANETARY SCIENCES: ASTROBIOLOGY]
5419 Hydrology and fluvial processes [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
8424 Hydrothermal systems [VOLCANOLOGY]

Abstracts Submitted to this Session:

Poás volcano in Costa Rica as a hydrothermal analog for Mars (292659)
M. Ramy Elmaarry, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States and Brian M Hynek, Univ Colorado, Boulder, CO, United States
Implications of Earth analogs to Martian sulfate-filled Fractures (266451)
Robert M Holt and Dennis W Powers, University of Mississippi, Geology and Geological Engineering Department, University, MS, United States
HEAVY METAL ENRICHMENTS IN THE KIMBERLEY BEDROCKS: EVIDENCE OF AN ORE DEPOSIT AT THE SOURCE? (238764)
Valerie Payre1, Cecile Fabre1, Violaine Sautter2, Nicolas Mangold3, Agnes Cousin4, Laetitia Le Deit3, Walter Goetz5, Olivier Forni4, Olivier Gasnault6, Roger C Wiens7 and Sylvestre Maurice8, (1)University of Lorraine Nancy, Nancy Cedex, France, (2)MNHN, CNRS, Paris Cedex 16, France, (3)LPGN Laboratoire de Planétologie et Géodynamique de Nantes, Nantes Cedex 03, France, (4)Institut de Recherche en Astrophysique et Planétologie (IRAP), Toulouse, France, (5)Max Planck Institute for Solar System Research (MPS), Gottingen, Germany, (6)IRAP, Toulouse, France, (7)CNRS, Paris Cedex 16, France, (8)IRAP, CNRS, Université de Toulouse, UPS-OMP, Toulouse, France
Elevated Zinc and Germanium Discovered by Curiosity’s APXS in the Murray Formation of Gale Crater, Mars, Indicate Hydrothermal Enrichment and Possible Diagenetic Fractionation (281680)
Jeff A. Berger1, Ralf Gellert2, Mariek E Schmidt3, Nicholas Boyd2, Elstan Desouza2, Douglas W Ming4, Catherine O'Connell-Cooper5, Elizabeth B Rampe4, Lucy M Thompson5, Scott VanBommel6 and Albert Yen7, (1)University of Guelph, Department of Physics, Guelph, ON, Canada, (2)University of Guelph, Guelph, ON, Canada, (3)Brock University, St Catharines, ON, Canada, (4)NASA Johnson Space Center, Houston, TX, United States, (5)University of New Brunswick, Fredericton, NB, Canada, (6)University of Guelph, Guelph, Canada, (7)NASA Jet Propulsion Laboratory, Pasadena, CA, United States
The Role of Subsurface Properties on Transport of Water and Trace Gases: 1D Simulations at Selected Mars Landing Sites. (279979)
Elodie Gloesener, Ozgur Karatekin and Veronique M A Dehant, Royal Observatory of Belgium, Brussels, Belgium
The Role of Subsurface Water in Carving Hesperian Amphitheater-Headed Valleys (264196)
Mathieu Gaetan Andre Lapotre, Stanford University, Earth and Planetary Sciences, Stanford, CA, United States; Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States and Michael P Lamb, California Institute of Technology, Geological and Planetary Sciences, Pasadena, United States
­­Clastic Pipes on Mars: Evidence for a Near Surface Groundwater System (220975)
David Fairchild Wheatley, University of Utah, Salt Lake City, UT, United States, Marjorie A Chan, Univ Utah, Salt Lake City, United States and Chris H Okubo, U.S. Geological Survey, Astrogeology Science Center, Flagstaff, United States
Visible and Near-Infrared Spectroscopy of Hephaestus Fossae Cratered Cones, Mars (253006)
Angela Dapremont, Georgia Institute of Technology Main Campus, Atlanta, GA, United States and James J Wray, Georgia Institute of Technology, Atlanta, GA, United States
Feldspathic Rocks and Associated Mineral Phases on Mars: Evidence for Metamorphism? (264703)
Alexander Michael Sessa, Georgia Institute of Technology, Atlanta, GA, United States and James J Wray, Georgia Institute of Tech., Atlanta, GA, United States
Consequences of Groundwater-Driven Alteration on the Cycling of Martian Volatiles (292625)
Bethany L Ehlmann, California Institute of Technology, Geological and Planetary Sciences, Pasadena, CA, United States
Emplacement of Widespread Fe/Mg Phyllosilicate Layer in West Margaritifer Terra, Mars (300980)
Kimberly D Seelos1, Dr. Rachel Elise Maxwell, PhD2, Frank P Seelos3, Debra Buczkowski3 and Christina E Viviano1, (1)Johns Hopkins Applied Physics Laboratory, Laurel, MD, United States, (2)University of California Santa Cruz, Santa Cruz, United States, (3)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States

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