V43F:
Flood and Hotspot Volcanism, and Relationships to Mass Extinctions and Ocean Biogeochemistry III

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Session ID#: 18234

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:  Wendy A Bohrson, Central Washington University, Ellensburg, WA, United States
Conveners:  Millard F Coffin, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, Robert A Duncan, Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, OR, United States and Michael R Rampino, New York University, New York, NY, United States
Chairs:  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, Michael R Rampino, New York University, New York, NY, United States and Robert A Duncan, Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, OR, United States
OSPA Liaison:  Wendy A Bohrson, Central Washington University, Ellensburg, WA, United States

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

3037 Oceanic hotspots and intraplate volcanism [MARINE GEOLOGY AND GEOPHYSICS]
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
8137 Hotspots, large igneous provinces, and flood basalt volcanism [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Seeking a paleontological signature for mass extinctions caused by flood basalt eruptions (Invited) (123910)
Jonathan Payne, Stanford University, Department of Geological Sciences, Stanford, CA, United States, Andrew M. Bush, Stanford University, Ecology & Evolutionary Biology, Storrs Mansfield, CT, United States, Ellen T. Chang, Stanford University, School of Medicine, Stanford, CA, United States, Noel A. Heim, Tufts University, Earth and Ocean Sciences, Medford, MA, United States, Matthew L. Knope, University of Hawaii at Hilo, Biology, Hilo, HI, United States and Sara B Pruss, Smith College, Geosciences, Northampton, MA, United States
Mass extinctions, large-body impacts and flood-basalt eruptions: Correlation suggests cataclysms from above or below (150111)
Michael R Rampino, New York University, New York, NY, United States
Volatiles and the tempo of flood basalt magmatism (128692)
Benjamin A Black, CUNY City College of New York, New York, NY, United States; CUNY Graduate Center, New York, NY, United States and Michael Manga, University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States
Submarine Flood Basalt Eruptions and Flows of Ontong Java Plateau, Nauru Basin and East Mariana Basin (190009)
Peter J Michael1, Stacy Rose Trowbridge2, Jie Zhang1 and Avery L Johnson1, (1)University of Tulsa, Geosciences, Tulsa, OK, United States, (2)Laredo Petroleum, Inc., Tulsa, OK, United States
U-Pb Zircon Geochronology of the Columbia River Basalt (199222)
Jennifer Kasbohm, Princeton University, Department of Geosciences, Princeton, United States and Blair Schoene, Princeton University, Department of Geosciences, Princeton, NJ, United States
Volcanism, Iron, and Phytoplankton in the Heard and McDonald Islands Region, Southern Indian Ocean (130623)
Millard F Coffin1, Richard J Arculus2, Prof. Andrew R Bowie1, Zanna Chase1, Robin Robertson3, Thomas W Trull4 and The HEOBI IN2016_V01 Shipboard Party5, (1)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, (2)Australian National University, Research School of Earth Sciences, Canberra, Australia, (3)UNSW at AFDA, Canberra, Australia, (4)Univ Tasmania, Hobart, Australia, (5)University of Tasmania, Hobart, Australia
Submarine geology and geomorphology of active Sub-Antarctic volcanoes: Heard and McDonald Islands (Invited) (146092)
Fynn Warnke1, Millard F Coffin2, Joanne M Whittaker2, Vanessa Lucieer3, Jodi M Fox4, Rebecca Carey5, Richard J Arculus6, Prof. Andrew R Bowie2, Zanna Chase2, Robin Robertson7, Tara Martin8 and Frances Cooke8, (1)National Institute of Water and Atmospheric Research, Ocean Geology, Wellington, New Zealand, (2)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, (3)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, Australia, (4)University of Tasmania, Hobart, Australia, (5)University of Tasmania, School of Natural Sciences, Hobart, TAS, Australia, (6)Australian National University, Research School of Earth Sciences, Canberra, Australia, (7)UNSW at AFDA, Canberra, Australia, (8)CSIRO Marine and Atmospheric Research Hobart, Hobart, Australia

See more of: Volcanology, Geochemistry and Petrology