V11A:
Geology, Geophysics, Geochemistry, and Biology of Serpentinization Processes on Earth and Other Planets Posters


Session ID#: 8394

Session Description:
This session will focus on the most recent discoveries of the complex hydration reactions of ultramafic rocks in which olivine and pyroxene are reacted to form rocks that are dominated by serpentine, brucite, talc, magnetite and carbonates and are associated with H2 and/or CH4 seeps. Serpentinization involves volume expansion, exothermic heat release, and crustal deformation, coupled with changes in fluid chemistry and seismic properties of the host rock. New insights into how serpentinization reactions proceed and importance of serpentinization as an energy source for microorganisms have been developed from studies on ophiolites and hydrothermal systems.

We invite investigations that concern different aspects of serpentinization such as physical, chemical or biological processes, petrology, fluid-rock processes, mechanics, kinetics of the reactions, volatile transfer (CO2, H2O, O2, SO2), or studies on carbon sequestration and abiotic generation of methane on natural, experimental and numerically modeled systems on Earth and planetary environments.

Primary Convener:  Aida Farough, Virginia Polytechnic Institute and State University, Geosciences, Blacksburg, KS, United States
Conveners:  Robert P Lowell, Virginia Polytechnic Institute and State University, Geosciences, Blacksburg, VA, United States and Jeffrey Alt, University of Michigan Ann Arbor, Earth & Environmental Sciences, Ann Arbor, MI, United States
Chairs:  Aida Farough, Virginia Polytechnic Institute and State University, Geosciences, Blacksburg, KS, United States, Robert P Lowell, Virginia Polytechnic Institute and State University, Geosciences, Blacksburg, VA, United States and Jeffrey Alt, University of Michigan Ann Arbor, Earth & Environmental Sciences, Ann Arbor, MI, United States
OSPA Liaison:  Aida Farough, Virginia Polytechnic Institute and State University, Geosciences, Blacksburg, KS, United States

Cross-Listed:
  • B - Biogeosciences
  • EP - Earth and Planetary Surface Processes
  • OS - Ocean Sciences
  • P - Planetary Sciences
Index Terms:

0428 Carbon cycling [BIOGEOSCIENCES]
3035 Midocean ridge processes [MARINE GEOLOGY AND GEOPHYSICS]
3042 Ophiolites [MARINE GEOLOGY AND GEOPHYSICS]
8413 Subduction zone processes [VOLCANOLOGY]

Abstracts Submitted to this Session:

Exploring the Metabolic Potential of Microbial Communities in Ultra-basic Reducing Spring at The Cedars, CA: Evidence of Microbial Methanogenesis and Heterotrophic Acetogenesis (63423)
Lukas Kohl1, Emily Cumming2, Alison Cox2, Shino Suzuki3, Liam Morrrissey2, Susan Q Lang4, Andreas Richter5, Kenneth H Nealson6 and Penny L Morrill7, (1)Memorial University of Newfoundland, Department of Earth Science, St John's, NF, Canada, (2)Memorial University of Newfoundland, St John's, Canada, (3)JAXA, Institute of Space and Astronautical Science, Kanagawa, Japan, (4)University of South Carolina Columbia, Columbia, SC, United States, (5)University of Vienna, Department of Microbiology & Ecosystem Science, Vienna, Austria, (6)University of Southern California, Los Angeles, United States, (7)Memorial University of Newfoundland, St John's, ON, Canada
Biological Processes Related to Serpentinization: Expected vs Observed Patterns (Invited) (76414)
Dawn Cardace, University of Rhode Island, Geosciences, Narragansett, United States
Preserved Organic Matter in the Alpine Tethyan Ocean Continental Transition (Totalp unit, Eastern Swiss Alps) (58801)
Tsvetomila Mateeva1, George A Wolff2, Nick Kusznir2, John Wheeler3 and Gianreto Manatschal4, (1)University of Liverpool, Liverpool, L69, United Kingdom, (2)University of Liverpool, Liverpool, United Kingdom, (3)University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, L69, United Kingdom, (4)University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom
Ca-Mg Carbonate Cements in Ophiolite-Hosted Creek Waters of the Del Puerto Ophiolite, CA, and their Potential Significance as a Planetary Biosignature (Invited) (85057)
Jennifer G Blank, NASA Ames Research Center, Moffett Field, United States
Fast Abiotic Production of Methane at Temperatures Below 100°C (59408)
Giuseppe Etiope, National Institute of Geophysics and Volcanology, Rome, Italy and Artur Ionescu, Babeș-Bolyai University, Faculty of Environmental Science and Engineering, Cluj-Napoca, Romania
Serpentinization Rates at Slow-Spreading Mid-Ocean Ridges: From Sample Scale to Plate-Boundary (Invited) (73416)
Mathilde Cannat, CNRS-Institut de Physique du Globe, Paris, France and Stéphane Rouméjon, Institut de Physique du Globe de Paris, Paris, France
Pattern Formation and Reaction Textures during Dunite Carbonation (65215)
Harrison P Lisabeth, Lawrence Berkeley National Laboratory, Berkeley, CA, United States and Wenlu Zhu, University of Maryland, College Park, United States
An experimental study on evolution of fracture permeability and rate of water-rock reactions in ultramafic rocks at hydrothermal conditions (70455)
Aida Farough, Virginia Polytechnic Institute and State University, Geosciences, Blacksburg, KS, United States and Robert P Lowell, Virginia Polytechnic Institute and State University, Geosciences, Blacksburg, VA, United States
Silica metasomatism of peridotite: Insights from the "other half" of forsterite serpentinization (63532)
Benjamin M Tutolo, University of Calgary, Department of Geoscience, Calgary, AB, Canada, Andrew J Luhmann, University of Minnesota, Minneapolis, MN, United States and William E Seyfried Jr, University of Minnesota Twin Cities, Earth and Environmental Sciences, Minneapolis, United States
Scientific Drilling in the Samail Ophiolite, Sultanate of Oman (Invited) (61317)
Juerg Michael Matter1,2, Peter B Kelemen1 and Damon A H Teagle3, (1)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (2)University of Southampton, Southampton, United Kingdom, (3)University of Southampton, School of Ocean and Earth Science, National Oceanography Centre Southampton, Southampton, SO14, United Kingdom
Geochemistry and petrology of altered peridotite overlain by Maastrichtian to Miocene sediments in the SE Samail Ophiolite, Oman (76549)
Juan Carlos de Obeso, Lamont -Doherty Earth Observatory, Palisades, NY, United States and Peter B Kelemen, Columbia University of New York, Palisades, NY, United States
Numerical Modeling of Brine Formation and Serpentinization at the Rainbow Hydrothermal System (81349)
Pavithra Sekhar, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States and Robert P Lowell, Virginia Polytechnic Institute and State University, Geosciences, Blacksburg, VA, United States
The model of lithospheric thickness beneath China from gravity data (86460)
Henglei Zhang, China unversity of Geosciences, Geophysics, Wuhan, China and Dhananjay Ravat, University of Kentucky, Lexington, KY, United States

See more of: Volcanology, Geochemistry and Petrology