PP022
Marine Sediment Drifts as Paleo Archives: Opportunities, Successes, and Challenges

Session ID#: 82155

Session Description:
Created through the interaction of ocean currents with topography, sediment drifts often contain some of the most rapidly accumulating marine sediments. Paleo-records derived from them may be of extremely high-resolution and because their formation, maintenance, and structure is strongly dependent upon the strength and position of ocean currents they can provide unique information on the history of ocean circulation. However, challenges remain as these environments are often dynamic and non-steady-state systems that do not always deliver, integrate, and deposit sediments in a continuous fashion idealized for paleo-reconstructions. We solicit contributions that address: improved understanding of drift development, numerical simulations of sediment transport, seismic observations, advances in chronological control within and of drift formation, and new proxies and paleo-records. We particularly welcome proxy-model syntheses that explore the physical mechanisms behind drift formation and the information they contain.
Index Terms:

3022 Marine sediments: processes and transport [MARINE GEOLOGY AND GEOPHYSICS]
3025 Marine seismics [MARINE GEOLOGY AND GEOPHYSICS]
4512 Currents [OCEANOGRAPHY: PHYSICAL]
4962 Thermohaline [PALEOCEANOGRAPHY]

Primary Convener:  Robert G Hatfield, Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, OR, United States
Conveners:  Joseph Stephen Stoner, Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, OR, United States and Alexander M Piotrowski, University of Cambridge, Cambridge, United Kingdom
Primary Liaison:  Robert G Hatfield, Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, OR, United States
 
Hydrodynamic Influences on Proxy Records in Marine Sediment Drifts: Challenges, Opportunities and Implications for Paleoclimate Reconstruction (Invited) (488063)
Blanca Ausin Gonzalez1, Negar Haghipour2, Clayton Magill3, Álvaro Fernández4, Elena Bruni5, David A Hodell6, Caroline Welte7, Stefano M Bernasconi8, Lukas Wacker9, Karl-Heinz Baumann10 and Timothy I Eglinton2, (1)ETH Zurich, Zurich, Switzerland, (2)ETH Swiss Federal Institute of Technology Zurich, Geological Institute, Zurich, Switzerland, (3)Heriot-Watt University, Edinburgh, United Kingdom, (4)University of Bergen, Bergen, Norway, (5)ETH Zurich, Geological Institute, Zurich, Switzerland, (6)University of Cambridge, Godwin Laboratory for Palaeoclimate Research, Cambridge, United Kingdom, (7)ETH Swiss Federal Institute of Technology Zurich, Laboratory of Ion Beam Physics, Zürich, Switzerland, (8)ETH Zurich, Department of Earth Sciences, Zurich, Switzerland, (9)ETH Swiss Federal Institute of Technology Zurich, Laboratory for Ion Beam Physics, Department of Physics, Zurich, Switzerland, (10)MARUM - University of Bremen, Bremen, Germany
 
Sorting of silt by bottom currents part I: Laboratory experiments (494931)
Kyle Strom, Virginia Tech, Blacksburg, VA, United States, Jeffrey Parker Culp, Virginia Tech, Civil Engineering, Blacksburg, VA, United States, Andrew Parent, Blacksburg, VA, United States and Brian Romans, Virginia Tech, Geosciences, Blacksburg, United States
 
Sorting of silt by bottom currents part II: Grain-size metrics and applicability to paleoceanography (507330)
Andrew Parent1, Brian Romans2, Jeffrey Parker Culp3 and Kyle Strom3, (1)Virginia Tech, Geosciences, Blacksburg, VA, United States, (2)Virginia Tech, Geosciences, Blacksburg, United States, (3)Virginia Tech, Civil Engineering, Blacksburg, VA, United States
 
Geochemistry and provenance study of recent deep-water sediments around Taiwan (514480)
Kalyani Nayak, Zhongli, Taiwan and Andrew T Lin, NCU National Central University of Taiwan, Jhongli, Taiwan
 
A sub-decadal record of East Antarctic biological productivity, and ocean-ice interactions over the Holocene from an ultra-expanded continental shelf sediment drift. (Invited) (532880)
Robert M Mckay1, Katelyn M Johnson2, Kate Newton3, Albot B Anya1, James A Bendle4, Francisco J Jimenez5, Johan Etourneau6, Xavier Crosta7, Christina R Riesselman8, Huw Joseph Horgan2, Nancy A.N. Bertler9, Carlota Escutia10 and Robert B Dunbar11, (1)Victoria University of Wellington, Wellington, New Zealand, (2)Victoria University of Wellington, Antarctic Research Centre, Wellington, New Zealand, (3)University of Birmingham, Birmingham, United Kingdom, (4)University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, United Kingdom, (5)University of Granada, Granada, Spain, (6)Instituto Andaluz de Ciencias de la Tierra, CSIC-Universidad Granada, Granada, Spain, (7)Université de Bordeaux, Environnements et Paléoenvironnements Océaniques et Continentaux, Bordeaux, France, (8)University of Otago, Departments of Geology and Marine Science, Dunedin, New Zealand, (9)Victoria University of Wellington and GNS Science, Antarctic Research Centre, Wellington, New Zealand, (10)I Andaluz de Ciencias Tierra, Armilla, Granada, Spain, (11)Stanford University, School of Earth Sciences, Stanford, CA, United States
 
Tectonic, Oceanographic, and Climatic Controls on the Cretaceous-Cenozoic Sedimentary Record of the Australian-Antarctic Basin (573830)
Isabel Sauermilch, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, Australia, Joanne M Whittaker, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, Peter Bijl, Utrecht University, Utrecht, Netherlands, Jennifer Totterdell, Geoscience Australia, Canberra, Australia and Wilfried Jokat, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany
 
Interaction of Southern Ocean Water Masses along the Argentine Margin during the Cenozoic (594807)
James D Wright, Rutgers University New Brunswick, Earth and Planetary Sciences, New Brunswick, NJ, United States and Niall C. Slowey, Texas A&M University, Oceanography, College Station, TX, United States
 
Identifying the Poisoned Chalice: Using Particle-Size Specific Magnetic Properties to Deconvolve Source from Transport on the Eirik Ridge, Labrador Sea (IODP Sites U1305 and U1306) (608007)
Benjamin Freiberg1, Robert G Hatfield2, Joseph S Stoner1, Bernard A Housen3 and Brendan T Reilly4, (1)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (2)Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, OR, United States, (3)Western Washington University, Geology, Bellingham, WA, United States, (4)CEOAS, Corvallis, OR, United States
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