T23H:
Structure, Evolution, and Influence of the Antarctic and Arctic Lithosphere

Submit an Abstract to this Session



Session ID#: 31520

Session Description:
Understanding the structure and evolution of the lithosphere at the poles is important in order to comprehend its influence on the overlying ice sheets and to determine the role of the Antarctic and Arctic continents in the evolution of the global plate tectonic jigsaw.

The international community has made remarkable progress in investigating several polar frontiers over the last decade. Airborne and marine geophysical surveys, new regional and continental-scale data compilations, global satellite missions, seismic and GPS networks, and geological studies are helping transform our knowledge of the Antarctic and Arctic regions.

We solicit contributions from studies describing: crustal and lithospheric architecture; the tectonic processes responsible for the evolution of the polar regions and -broader linkages with Gondwana, Rodinia and Columbia; the processes responsible for oceanic gateway evolution; and the influence of lithospheric structure on ice sheet dynamics.

Primary Convener:  Fausto Ferraccioli, NERC British Antarctic Survey, Cambridge, United Kingdom
Conveners:  Douglas Wiens, Washington University in St Louis, Department of Earth, Environmental, and Planetary Sciences, St. Louis, United States, Richard Saltus, NOAA Boulder, Boulder, CO, United States and Joachim Jacobs, University of Bergen, Department of Earth Science, Bergen, Norway
Chairs:  Fausto Ferraccioli, NERC British Antarctic Survey, Cambridge, United Kingdom and Richard Saltus, University of Colorado at Boulder, Boulder, CO, United States
OSPA Liaison:  Joachim Jacobs, University of Bergen, Department of Earth Science, Bergen, Norway

Cross-Listed:
  • C - Cryosphere
  • G - Geodesy
  • GP - Geomagnetism, Paleomagnetism and Electromagnetism
  • S - Seismology
Index Terms:

0726 Ice sheets [CRYOSPHERE]
8110 Continental tectonics: general [TECTONOPHYSICS]
9310 Antarctica [GEOGRAPHIC LOCATION]
9315 Arctic region [GEOGRAPHIC LOCATION]

Abstracts Submitted to this Session:

Seismic tomography of the Arctic region: inferences for the thermal structure and evolution of the lithosphere and its influence on intraplate volcanism (231319)
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, Complutense University of Madrid, Physics of the Earth and Astrophysics, Madrid, Spain and Victoria Pease, Stockholm University, Stockholm, Sweden
Constraints on the lithosphere in and surrounding the Arctic basin from combined ambient noise and earthquake tomography (290069)
Julia E Krogh1, Colleen A Dalton2 and Zhitu Ma1, (1)Brown University, Department of Earth, Environmental, and Planetary Sciences, Providence, RI, United States, (2)Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, RI, United States
Crustal Structure of the Northeast Greenland Shelf from Regional 3D Gravity Modeling on the Basis of Sparse Seismic Data (249502)
Claudia Haase, Geological Survey of Norway, Trondheim, Norway, Joerg Ebbing, University of Kiel, Kiel, Germany, Thomas Funck, Geological Survey of Denmark and Greenland, Copenhagen K, Denmark and Wolfram H. Geissler, Alfred-Wegener-Institut, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
The complex Chukchi Borderland region as part of the Arctic Alaska extended margin (288441)
Richard Saltus, NOAA Boulder, Boulder, CO, United States, Deborah R Hutchinson, US Geological Survey, Woods Hole, MA, United States and Elizabeth L Miller, Stanford University, Stanford, CA, United States
Chukchi Borderland | Crustal Complex of the Amerasia Basin, Arctic Ocean (298709)
Ibrahim Ilhan, University of Alaska Fairbanks, Fairbanks, AK, United States, Bernard Coakley, Univiversity of Alaska Fairbanks, Fairbanks, United States and David W Houseknecht, USGS Headquarters, Reston, VA, United States
TopoGreenland: Lithospheric structure and topography in Central-Eastern Greenland (279621)
Hans Thybo, SinoProbe, CAGS, Beijing, China, Alexey Shulgin, University of Oslo, CEED, Oslo, Norway, Helene Anja Kraft, University of Copenhagen, København K, Denmark and Lev P Vinnik, Institute of Physics of the Earth, Moscow, Russia
Imaging the Iceland Hotspot Track Beneath Greenland with Seismic Noise Correlations (238732)
Aurélien Mordret, Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States

See more of: Tectonophysics