T43F:
Geologic and Geodynamic Evolution of the Arctic Region I


Session ID#: 10722

Session Description:
Over the last quarter century, scientific and entrepreneurial agendas for the Arctic have expanded greatly as climate change, international politics and technological innovations have diminished logistical barriers and opened a modern frontier for scientific and resource exploration. Despite years of study, much of the framework geologic history of the Arctic Ocean and its surrounding landmasses is insufficiently constrained by existing data and is thus controversial.  Elucidating the multiphase plate tectonic history of the oceanic and surrounding continental realms through robust plate reconstructions and regional tectonic syntheses is a fundamental challenge. We seek research that addresses the challenging geology of the Arctic, especially submissions that integrate understanding of (1) age, lithology, structure, and/or paleo-(bio)geography of circum-Arctic lithosphere, (2) tectonic and geodynamic processes of lithosphere generation and modification, and (3) geologic and geophysical correlations across the oceanic realm and into better-studied regions of Eurasia, Laurentia and elsewhere.
Primary Convener:  Eric S Gottlieb, Stanford University, Stanford, CA, United States
Conveners:  Richard O Lease, USGS Alaska Science Center, Anchorage, AK, United States, Richard Saltus, US Geological Survey, Denver, CO, United States and Tim O'Brien, Stanford University, Stanford, CA, United States
Chairs:  Eric S Gottlieb, Stanford University, Stanford, CA, United States and Richard O Lease, USGS Alaska Science Center, Anchorage, AK, United States
OSPA Liaison:  Tim O'Brien, Stanford University, Stanford, CA, United States

Cross-Listed:
  • OS - Ocean Sciences
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

1199 General or miscellaneous [GEOCHRONOLOGY]
3040 Plate tectonics [MARINE GEOLOGY AND GEOPHYSICS]
8099 General or miscellaneous [STRUCTURAL GEOLOGY]
8110 Continental tectonics: general [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Seismic and Thermal Structure of the Arctic Lithosphere, From Waveform Tomography and Thermodynamic Modelling (63319)
Sergei Lebedev, Dublin Institute for Advanced Studies, Dublin, Ireland, Andrew J Schaeffer, University of Ottawa, Department of Earth and Environmental Sciences, Ottawa, ON, Canada, Javier Fullea, Institute of Geosciences (IGEO) CSIC-UCM, Madrid, Spain and Victoria Pease, Stockholm University, Stockholm, Sweden
Gridded Data in the Arctic; Benefits and Perils of Publicly Available Grids (75546)
Bernard Coakley1, Rene Forsberg2, Rose Gabbert3, James Beale4 and Steve C Kenyon3, (1)University of Alaska Fairbanks, Geosciences, Fairbanks, United States, (2)Technical University of Denmark, Space, Kgs. Lyngby, Denmark, (3)NGA, Arnold, MO, United States, (4)National Geospatial Intelligence Agency, St. Louis, United States
Circum-Arctic lithospheric transects from onshore to offshore (48404)
Victoria Pease1, Bernard Coakley2, Jan Inge Faleide3, Wilfried Jokat4, Elizabeth L Miller5, Randell Stephenson6 and Kristian E Meisling5, (1)Stockholm University, Stockholm, Sweden, (2)University of Alaska Fairbanks, Geosciences, Fairbanks, United States, (3)University of Oslo, Oslo, Norway, (4)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Geophysics, Bremerhaven, Germany, (5)Stanford University, Stanford, CA, United States, (6)University of Aberdeen, Department of Geology and Petroleum Geology, Aberdeen, United Kingdom
Laser Ablation Split Stream (LASS) U-Pb & Lu-Hf Isotope Analysis of Detrital Zircons from the Old Red Sandstone, NW Svalbard: Implications for Northern Caledonian Paleogeography (Invited) (58819)
Luke P. Beranek, Memorial University of Newfoundland, Department of Earth Sciences, St John's, NL, Canada, David G Gee, Uppsala University, Uppsala, Sweden and Christopher M Fisher, Washington State University, Pullman, WA, United States
Using Paleomagnetic, Geochemical and Structural Data to Recognize Post-metamorphic Tectonic Events in the Caledonide Terranes of Western Svalbard. (65990)
Krzysztof Michalski1, Geoffrey Manby2, Krzysztof Nejbert3, Justyna Domańska Siuda3 and Mariusz Burzyński4, (1)Institute of Geophysics Polish Academy of Sciences, Warsaw, Poland, (2)Natural History Museum, London, United Kingdom, (3)University of Warsaw, Department of Geology, Warsaw, Poland, (4)Institute of Geophysics, Polish Academy of Sciences - Centre for Polar Studies KNOW (Leading National Research Centre), Warsaw, Poland
Geologic constraints on kinematic models and age of formation of the Amerasia Basin of the Arctic (69319)
Elizabeth L Miller, Stanford University, Stanford, CA, United States
Wrench faulting in the Canada Basin, Arctic Ocean (78904)
Deborah R Hutchinson1, H. Ruth Jackson2, John Shimeld3, David W Houseknecht4, Deping Chian5, Qingmou Li2, Richard Saltus6 and Gordon N Oakey3, (1)USGS, Coastal and Marine Science Center Woods Hole, Woods Hole, MA, United States, (2)Geological Survey of Canada Atlantic, Dartmouth, NS, Canada, (3)Geological Survey of Canada (Atlantic), Natural Resources Canada, Dartmouth, NS, Canada, (4)USGS Headquarters, Reston, VA, United States, (5)Chian Consulting, Dartmouth, NS, Canada, (6)USGS, Baltimore, MD, United States
The Eocene Eurekan deformation in the Arctic – architecture and kinematics of a strange foldbelt (Invited) (69213)
Karsten Piepjohn1, Werner von Gosen2, Franz Tessensohn3 and Lutz Reinhardt1, (1)BGR Federal Institute for Geosciences and Natural Resources, Hannover, Germany, (2)Geo-Center of Northern Bavaria, Erlangen, Germany, (3)Geo-Center Adelheidsdorf, Adelheidsdorf, Germany

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