PP43A:
Geochemistry and Microbiology of Oxic and Suboxic Deep-Sea Pelagic Sediments II Posters


Session ID#: 8401

Session Description:
Recent deep sea coring and drilling expeditions have determined that substantial portions of pelagic sediments are wholly oxic or suboxic.  What are the implications of this geochemical regime for the subseafloor biosphere and for paleoceanographic reconstruction? This session constrains the links between chemistry and biology that underpin subseafloor microbial activity and modify paleoceanographic records. Pursuit of these objectives require identifying the controlling factors that dictate sediment and porewater chemical composition and redox gradients. We encourage contributions that analyze samples from recent expeditions, utilize empirical or modeled data to predict properties of the subseafloor biosphere or past oceans, and explore the link between sediment chemistry and microbial life in these oxic and suboxic regions.
Primary Convener:  Emily R Estes, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Conveners:  Chloe H Anderson, Boston University, Earth and Environment, Boston, United States, Ann G Dunlea, NIRVANA Laboratories, Woods Hole Oceanographic Institution, Woods Hole, MA, United States and Claire Cecelia McKinley, Texas A & M University, College Station, TX, United States
Chairs:  Ann G Dunlea, NIRVANA Laboratories, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Emily R Estes, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Chloe H Anderson, Boston University, Earth and Environment, Boston, United States and Claire Cecelia McKinley, Texas A & M University College Station, College Station, TX, United States
OSPA Liaison:  Emily R Estes, Woods Hole Oceanographic Institution, Woods Hole, MA, United States

Cross-Listed:
  • B - Biogeosciences
  • OS - Ocean Sciences
Index Terms:

4840 Microbiology and microbial ecology [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4851 Oxidation/reduction reactions [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4912 Biogeochemical cycles, processes, and modeling [PALEOCEANOGRAPHY]
4924 Geochemical tracers [PALEOCEANOGRAPHY]

Abstracts Submitted to this Session:

On-site isotopic analysis of dissolved inorganic carbon using an isotope ratio infrared spectrometer (81733)
Tim Stoltmann1,2, H.J. Hansjuerg Jost3, Nils Stöbener4, Eric Wapelhorst4, Magda Mandic4, Rebecca Aepfler1, Kai-Uwe Hinrichs5, Heidi Taubner6 and Marcus Elvert1, (1)MARUM - University of Bremen, Bremen, Germany, (2)Laboratoire Interdisciplinaire des Sciences du Climat et de l'Environnement, C.N.R.S, Gif-sur-Yvette, France, (3)Thermo Fisher Scientific, Hilterfingen, Switzerland, (4)Thermo Fisher Scientific, Bremen, Germany, (5)MARUM - Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany, (6)MARUM – Center for Marine Environmental Sciences and Faculty of Geosciences, University of Bremen, Bremen, Germany
Size and Carbon Content of Sub-seafloor Microbial Cells (72190)
Stefan Braun1, Yuki Morono2, Sten Littmann3, Bo Barker Jørgensen1 and Bente Aagaard Lomstein1, (1)Aarhus University, Aarhus C, Denmark, (2)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (3)Max Planck Institute for Marine Microbiology, Bremen, Germany
Biogeochemical Insights into B-Vitamins in the Coastal Marine Sediments of San Pedro Basin, CA (82730)
Danielle Potocek1, William Berelson1, J. Jotautas Baronas1 and Sergio A Sanudo-Wilhelmy2, (1)University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States, (2)University of Southern California, Marine and Environmental Biology, Los Angeles, CA, United States
Human-associated fungi in deep subseafloor sediment? (66203)
Victoria Madison Fulfer, University of Rhode Island Narragansett Bay, Narragansett, RI, United States, John B Kirkpatrick, University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States and Steven D'Hondt, University of Rhode Island, Narragansett, RI, United States
Disentangling the fossil world from the deep biosphere in marine sediment (77416)
John B Kirkpatrick1, Emily A Walsh2 and Steven D'Hondt2, (1)University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States, (2)University of Rhode Island, Narragansett, RI, United States
Sedimentary Catalysis of Radiolytic H2 Production, and Implications for Subseafloor Life (70529)
Justine Sauvage1, Arthur J Spivack1, Ann G Dunlea2, Richard W Murray3, David L Bish4 and Steven D'Hondt5, (1)University of Rhode Island - GSO, Oceanography, Narragansett, RI, United States, (2)NIRVANA Laboratories, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (3)Boston University, Earth and Environment, Boston, MA, United States, (4)Indiana University - Bloomington, Department of Chemistry, Bloomington 47405 IN, United States, (5)University of Rhode Island, Narragansett, RI, United States
Iron Cycling in Sediment of the North Atlantic: Preliminary Results from R/V Knorr Expedition 223 (79328)
Chloe H Anderson, Boston University, Earth and Environment, Boston, United States, Emily R Estes, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Melinda Darby Dyar, Mount Holyoke College, Department of Astronomy, South Hadley, United States, Richard W Murray, Boston University, Earth and Environment, Boston, MA, United States, Arthur J Spivack, University of Rhode Island - GSO, Oceanography, Narragansett, RI, United States, Justine Sauvage, University of Rhode Island - GSO, Narragansett, RI, United States, Claire Cecelia McKinley, Texas A & M University College Station, College Station, TX, United States, Theodore Present, California Institute of Technology, Pasadena, CA, United States, Kira Homola, University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, United States, Robert A Pockalny, Univ Rhode Island, Narragansett, RI, United States and Steven D'Hondt, University of Rhode Island, Narragansett, RI, United States
Elucidating Geochemical Controls on the Concentration and Composition of Organic Carbon in Deep Pelagic Sediments (74332)
Emily R Estes, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Colleen Hansel, Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, MA, United States, Chloe H Anderson, Boston University, Earth and Environment, Boston, United States, Richard W Murray, Boston University, Earth and Environment, Boston, MA, United States, Melinda Darby Dyar, Mount Holyoke College, Department of Astronomy, South Hadley, United States, Dennis Nordlund, Stanford Synchrotron Radiation Lightsource, Menlo Park, CA, United States, Scott D Wankel, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States, Dana Johnson, Northwestern University, Evanston, IL, United States, Arthur J Spivack, University of Rhode Island - GSO, Oceanography, Narragansett, RI, United States, Justine Sauvage, University of Rhode Island - GSO, Narragansett, RI, United States, Claire Cecelia McKinley, Texas A & M University College Station, College Station, TX, United States, Kira Homola, University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, United States, Theodore Present, California Institute of Technology, Pasadena, CA, United States, Robert A Pockalny, Univ Rhode Island, Narragansett, RI, United States and Steven D'Hondt, University of Rhode Island, Narragansett, RI, United States
Correlating organic carbon concentration and composition with mineralogy in deep-sea pelagic sediments (83565)
Dana Johnson, Northwestern University, Evanston, IL, United States, Emily R Estes, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Colleen Hansel, Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, MA, United States, Chloe H Anderson, Boston University, Earth and Environment, Boston, United States, Richard W Murray, Boston University, Earth and Environment, Boston, MA, United States, Melinda Darby Dyar, Mount Holyoke College, Department of Astronomy, South Hadley, United States, Dennis Nordlund, Stanford Synchrotron Radiation Lightsource, Menlo Park, CA, United States, Scott D Wankel, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States, Arthur J Spivack, University of Rhode Island - GSO, Oceanography, Narragansett, RI, United States, Justine Sauvage, University of Rhode Island - GSO, Narragansett, RI, United States, Claire Cecelia McKinley, Texas A & M University College Station, College Station, TX, United States, Kira Homola, University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, United States, Theodore Present, California Institute of Technology, Pasadena, CA, United States and Steven D'Hondt, University of Rhode Island, Narragansett, RI, United States
Preformed Nitrate in the Glacial North Atlantic (81785)
Kira Homola, University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, United States, Arthur J Spivack, University of Rhode Island - GSO, Oceanography, Narragansett, RI, United States, Steven D'Hondt, University of Rhode Island, Narragansett, RI, United States, Emily R Estes, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Tania Lado Insua, Ocean Networks Canada, Victoria, BC, Canada, Claire Cecelia McKinley, Texas A & M University College Station, College Station, TX, United States, Richard W Murray, Boston University, Earth and Environment, Boston, MA, United States, Robert A Pockalny, Univ Rhode Island, Narragansett, RI, United States, Rebecca S Robinson, University of Rhode Island, Graduate School of Oceanography, Narragansett, United States and Justine Sauvage, University of Rhode Island - GSO, Narragansett, RI, United States
Ventilation History of the Intermediate Western North Atlantic During the Last Deglaciation (77780)
Ning Zhao, Woods Hole Oceanographic Inst., Woods Hole, MA, United States; MIT-WHOI Joint Program, Woods Hole, MA, United States and Lloyd D Keigwin, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Down Core Fidelity of Authigenic Oxyhydroxide Coatings: Tracing Paleogene Water Mass Evolution (64870)
Claire Cecelia McKinley, Texas A & M University College Station, College Station, TX, United States, Deborah Jane Thomas, Texas A & M University College Station, Oceanography, College Station, TX, United States, Ann G Dunlea, NIRVANA Laboratories, Woods Hole Oceanographic Institution, Woods Hole, MA, United States and Richard W Murray, Boston University, Earth and Environment, Boston, MA, United States
Dust, Volcanic Ash, and the Evolution of the South Pacific Gyre through the Cenozoic (85594)
Ann G Dunlea, NIRVANA Laboratories, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Richard W Murray, Boston University, Earth and Environment, Boston, MA, United States, Justine Sauvage, University of Rhode Island - GSO, Narragansett, RI, United States, Arthur J Spivack, University of Rhode Island - GSO, Oceanography, Narragansett, RI, United States, Robert N Harris, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, Steven D'Hondt, University of Rhode Island, Narragansett, RI, United States and John A Higgins, Princeton University, Department of Geosciences, Princeton, NJ, United States
Influence of sea level change on sediment provenance variations since the last glaciation in the southern South China Sea (76412)
Thanakorn Jiwarungrueangkul1, Zhifei Liu2 and Yulong Zhao2, (1)Tongji University, Shanghai, China, (2)Tongji University, State Key Laboratory of Marine Geology, Shanghai, China

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