B24A:
(Bio)geochemical Cycles in Extreme Environments III

Tuesday, 16 December 2014: 4:00 PM-6:00 PM
Chairs:  Eric S Boyd, Montana State University, Bozeman, MT, United States and Mark Alexander Lever, Aarhus University, Center for Geomicrobiology, Department of Bioscience, Aarhus, Denmark
Primary Conveners:  Brandon R Briggs, Miami University, Oxford, OH, United States
Co-conveners:  Eric S Boyd, Montana State University, Bozeman, MT, United States
OSPA Liaisons:  Aude Picard, Harvard University, Cambridge, MA, United States

Abstracts Submitted to this Session:

4:00 PM
B24A-01
 
A SIMPLE Perspective on Europa's Habitability
Britney E Schmidt, Georgia Institute of Technology Main Campus, Atlanta, GA, United States
4:15 PM
B24A-02
 
Exploring the Habitability of Ice-covered Waterworlds: The Deep-Sea Hydrothermal System of the Aurora Mount at Gakkel Ridge, Arctic Ocean (82°54’ N, 6°15W, 3900 m)
Antje Boetius1,2, Wolfgang Bach2, Christian Borowski3, Alexander Diehl2, Christopher R German4, Norbert E Kaul2, Janna Koehler5, Yann Marcon1,2, Christian Mertens6, Massimiliano Molari3, Vera S N Schlindwein1, Andreas Tuerke2 and Gunter Wegener2,3, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (2)MARUM Center for Marine Environmental Research, University Bremen, Germany, (3)Max Planck Institute for Marine Microbiology, Bremen, Germany, (4)WHOI, Woods Hole, MA, United States, (5)University of Bremen, Bremen, Germany, (6)Institut für Umweltphysik, University Bremen, Germany
4:30 PM
B24A-03
 
Potential Physiologies of Deep Branches on the Tree of Life with Deep Subsurface Samples from IODP Leg 347: Baltic Sea Paleoenvironment
Karen G Lloyd, Jordan T Bird and Alexander Shumaker, University of Tennessee, Knoxville, TN, United States
4:45 PM
B24A-04
 
Silicate Weathering and Pervasive Authigenic Carbonate Precipitation Coupled to Methanogenesis in the Krishna-Godavari Basin, Offshore India
Evan A Solomon, Univ Washington, Seattle, WA, United States, Arthur J Spivack, University of Rhode Island, Narragansett, RI, United States, Miriam Kastner, Scripps Institution of Oceanography, La Jolla, CA, United States and Marta E Torres, Oregon State Univ, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
5:00 PM
B24A-05
 
Evidence for a Methane-Fueled Ecosystem within Anchialine Caves of the Yucatan Peninsula, Mexico
David Brankovits1, John Pohlman1,2, Helge Niemann3, Mary Beth Leigh4, Moritz F Lehmann3 and Thomas M. Iliffe1, (1)Texas A & M University at Galveston, Galveston, TX, United States, (2)Coastal and Marine Science Center Woods Hole, USGS, Woods Hole, MA, United States, (3)University of Basel, Department of Environmental Sciences, Basel, Switzerland, (4)University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States
5:15 PM
B24A-06
 
Biological Sources of Branched Glycerol Dialkyl Glycerol Tetraethers (brGDGTs) in Terrestrial Hot Springs: A Possible Link Between Nitrogen-cycling Bacteria and brGDGT Production
Jin-Xiang Wang1,2, Wei Xie2, Eric S Boyd3, Brian P Hedlund4 and Chuanlun Zhang2, (1)University of Georgia, Athens, GA, United States, (2)Tongji University, Shanghai, China, (3)Montana State University, Bozeman, MT, United States, (4)University of Nevada Las Vegas, Las Vegas, NV, United States
5:30 PM
B24A-07
 
Experimental Evolution of UV-C Radiation Tolerance: Emergence of Adaptive and Non-Adaptive Traits in Escherichia coli Under Differing Flux Regimes
Amy Moffet1, Alexis Okansinski2, Camilla Sloan3, Joseph M Grace4, Ivan G Paulino-Lima5, Diana Gentry6, Lynn J Rothschild6 and Manel Camps7, (1)University of California Santa Cruz, Biomolecular Engineering, Santa Cruz, CA, United States, (2)College of San Mateo, San Mateo, CA, United States, (3)Cañada College, Redwood City, CA, United States, (4)NASA Ames Research Center, Education Associates Program, Moffett Field, CA, United States, (5)NASA Ames Research Center, Oak Ridge Associated Universities, Moffett Field, CA, United States, (6)NASA Ames Research Center, Biospheric Science Branch, Moffett Field, CA, United States, (7)University of California Santa Cruz, Microbiology & Environmental Toxicology, Santa Cruz, CA, United States
5:45 PM
B24A-08
 
High Pressures and Preserving the Records of Life.
Wren Montgomery1, Jonathan S. Watson1 and Mark A Sephton2, (1)Imperial College London, Department of Earth Science & Engineering, London, United Kingdom, (2)Imperial College London, London, United Kingdom
 
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