V23C:
Flood and Hotspot Volcanism, and Relationships to Mass Extinctions and Ocean Biogeochemistry I Posters

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Session ID#: 18231

Session Description:
Flood Basalts are catastrophic, voluminous magmatic events that punctuate Earth History. We invite papers that address a range of questions that contribute to an integrated view of flood basalt magmatism from eruption dynamics to mantle source characteristics. What volcanic processes distinguish flood basalts? How do the erupted products change with time, and what is the character of the feeder systems? What is the duration of magmatism? What is the role of crustal modulation, including the location and size of magma reservoirs? What is the balance between crustal (e.g., assimilation, crystal accumulation) and mantle input, and does this balance change with time? What mantle sources are involved, and what distinguishing characteristics allow these source contributions to be resolved? Studies that document the petrological, geochemical, geochronological, volcanological and geophysical attributes of flood basalts and associated crust and mantle are encouraged, to ultimately assemble a temporal and spatial synthesis of these extraordinary events.
Primary Convener:  Millard F Coffin, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia
Conveners:  Wendy A Bohrson, Central Washington University, Ellensburg, WA, United States, Anita Grunder, Oregon State University, CEOAS, Corvallis, OR, United States and Michael R Rampino, New York University, New York, NY, United States
Chairs:  Anita Grunder, Oregon State University, CEOAS, Corvallis, OR, United States, Millard F Coffin, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, Wendy A Bohrson, Central Washington University, Ellensburg, WA, United States and Michael R Rampino, New York University, New York, NY, United States
OSPA Liaison:  Millard F Coffin, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia

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

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
3037 Oceanic hotspots and intraplate volcanism [MARINE GEOLOGY AND GEOPHYSICS]
8137 Hotspots, large igneous provinces, and flood basalt volcanism [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Enhanced methane emission during carbonaceous sediment-basalt interactions as a mechanism for mass extinction (125502)
Allison Irene Kubo, University of California San Diego, La Jolla, CA, United States, James M Day, University of California San Diego, La Jolla, United States, Viktor V Ryabov, V.S. Sobolev Institute of Geology and Mineralogy SB RAS, Novosibirsk, Russia and Lawrence A Taylor, University of Tennessee, Knoxville, TN, United States
Global Ni anomaly generated by Siberian Traps volcanism at the Permian Triassic boundary (149397)
Sedelia Rodriguez, Barnard College, Department of Environmental Science, New York, NY, United States, Michael R Rampino, New York University, New York, NY, United States and Eva Baransky, Barnard College, New York, NY, United States
Developing a Methodology to Connect the Siberian Flood Basalts and the Permian-Triassic Extinction Through LA-ICP-MS (151262)
Eva Baransky, Barnard College, New York, NY, United States, Sedelia Rodriguez, Barnard College, Department of Environmental Science, New York, NY, United States and Michael R Rampino, New York University, New York, NY, United States
CO2 and Amplification of Orbitally Forced Changes in the Hydrological Cycle across the end-Triassic extinction (176339)
Jessica Hope Whiteside, University of Southampton, Southampton, United Kingdom, Morgan F Schaller, Rensselaer Polytechnic Institute, Earth and Environmental Sciences, Troy, NY, United States, Martin Palmer, University of Southampton, Ocean and Earth Sciences, Southampton, United Kingdom, James Andy Milton, University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom and Paul E Olsen, Lamont-Doherty Earth Observatory, Palisades, NY, United States
Selective nature of end-Triassic tetrapod extinctions consistent with scenarios of extreme volcanic winters not a super-greenhouse (157455)
Paul E Olsen, Lamont-Doherty Earth Observatory, Palisades, NY, United States
Hg concentrations from Late Triassic and Early Jurassic sedimentary rocks: first order similarities and second order depositional and diagenetic controls (196825)
A. Joshua West1, Joyce Ann Yager2, Bridget A Bergquist3, Alyson M Thibodeau4, Frank A Corsetti5, William Berelson5, David J Bottjer5 and Silvia Rosas6, (1)University of Southern California, Los Angeles, CA, United States, (2)University of Southern California, Los Angeles, United States, (3)University of Toronto, Department of Earth Sciences, Toronto, ON, Canada, (4)University of Toronto, Toronto, ON, Canada, (5)University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States, (6)Pontifical Catholic University of Peru, Mining Engineering, Lima, Peru
The role of climate and vegetation on woolly mammoth extinction on St. Paul Island, Alaska and megafauna extinction in North America in the late Quaternary (165272)
Yue Wang1, Warren Porter1, Paul A Miller2, Russell W Graham3 and John W Williams4, (1)University of Wisconsin Madison, Madison, WI, United States, (2)Lund University, Department of Physical Geography and Ecosystem Science, Lund, Sweden, (3)Penn State, University Park, PA, United States, (4)University of Wisconsin-Madison, Department of Geography & Center for Climatic Research, Madison, United States
Constraints on the Chief Joseph Dike Swarm of the Columbia River Flood Basalts from the legacy dataset of William H. Taubeneck (167278)
Morgan W Nasholds1, Leif Karlstrom2 and Matthew Connor Morriss1, (1)University of Oregon, Department of Earth Sciences, Eugene, OR, United States, (2)University of Oregon, Eugene, OR, United States
Miocene Basaltic Lava Flows and Dikes of the Intervening Area Between Picture Gorge and Steens Basalt of the CRBG, Eastern Oregon (187955)
Emily Bogdan Cahoon, Isotopx Ltd, Middlewich, CW10, United Kingdom and Martin J Streck, Portland State University, Geology, Portland, OR, United States
Widespread depletion of platinum group elements in the continental flood basalts of the Early Permian Tarim Large Igneous Province (NW China) (137319)
Yinqi Li1, Zilong Li2, Yali Sun3, Hanlin Chen2 and Shufeng Yang4, (1)Zhejiang University, Center for Hypergravity Experimental and Interdisciplinary Research, Hangzhou, China, (2)Zhejiang University, School of Earth Sciences, Hangzhou, China, (3)ITP Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China, (4)School of Earth Sciences, Zhejiang University, Hangzhou, China
Trace Elements in the Dullstroom Volcanics Provide Insight for the Origin of the Bushveld Igneous Complex (167114)
Jordan Alexander Krcmaric, University of Arizona, Tucson, AZ, United States, Maureen D Feineman, Pennsylvania State University, Department of Geosciences, University Park, United States, Grant Michael Bybee, University of Witwatersrand, Wits, South Africa and Mihai Nicolae Ducea, University of Arizona, Geosciences, Tucson, United States
Widespread Neogene and Quaternary Volcanism on Central Kerguelen Plateau, Southern Indian Ocean (139199)
Robert A Duncan, Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, OR, United States, Trevor Falloon, University of Tasmania, Centre of Ore Deposits and Earth Sciences, Hobart, Australia, Patrick G Quilty, University of Tasmania, Hobart, TAS, Australia and Millard F Coffin, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia
Heard Island and McDonald Islands Acoustic Plumes: Split-beam Echo sounder and Deep Tow Camera Observations of Gas Seeps on the Central Kerguelen Plateau (177205)
Erica A Spain1, Sally Joan Watson2, Millard F Coffin3, Joanne M Whittaker3, Jodi M Fox2 and Prof. Andrew R Bowie3, (1)University of Tasmania, Hobart, TAS, Australia, (2)University of Tasmania, Hobart, Australia, (3)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia
Mixing on the Heard Island Plateau during HEOBI (159236)
Robin Robertson, UNSW at AFDA, Canberra, Australia
Late summer distribution and stoichiometry of dissolved N, Si and P in the Southern Ocean near Heard and McDonald Islands on the Kerguelen Plateau (133668)
Zanna Chase1, Prof. Andrew R Bowie1, Stéphane Blain2, Thomas Holmes1,3, Mark Rayner4, Kendall Sherrin4, Manon Tonnard5,6 and Thomas W Trull3,4, (1)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, (2)Sorbonne Université, Laboratoire d'Océanographie Microbienne, Banyuls sur mer, France, (3)Antarctic Climate and Ecosystems Cooperative Research Centre (ACE CRC), Hobart, Australia, (4)CSIRO Marine and Atmospheric Research Hobart, Hobart, Australia, (5)IUEM Institut Universitaire Européen de la Mer, LEMAR, Plouzané, France, (6)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, Australia
Iron Speciation in Proximity to an Active Volcanic Hotspot, Kerguelen Plateau, Southern Ocean (Invited) (137606)
Thomas Holmes1, Kathrin Wuttig2, Zanna Chase3, Pier van der Merwe4, Ashley Townsend5 and Prof. Andrew R Bowie3, (1)Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, (2)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (3)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, (4)Antarctic Gateway Partnership, University of Tasmania, Hobart, Australia, (5)University of Tasmania, Central Science Laboratory, Hobart, TAS, Australia

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