S32A:
Seismic Structure and Dynamics of the North American Cordillera I

Submit an Abstract to this Session

Session Title - en français: Structure sismique et dynamique de la Cordillère Nord-Américaine

Session ID#: 6785

Session Description:
The North American Cordillera extends from Mexico to the Arctic coast and Alaska and is characterized by a large variety of tectonic environments, from active convergent and transform plate boundaries to crustal- and lithospheric-scale tectonic sutures. Recent efforts to increase geophysical instrumentation and monitoring have improved our understanding of these tectonic structures and their interactions from the surface to the mantle. This session aims to bring together Earth scientists who work on deciphering the seismic structure and processes associated with the evolution and current deformation of the North American Cordillera. We seek contributions from seismology, geodynamics, tectonics and related fields that yield constraints on the thermal and compositional structure as well as active deformation of the crust and mantle through field observations, laboratory studies and numerical modeling.
OSPA Liaison:  Stephane Mazzotti, Géosciences Montpellier, Montpellier Cedex 05, France
Chairs:  Pascal Audet, University of Ottawa, Department of Earth and Environmental Sciences, Ottawa, ON, Canada and Stephane Mazzotti, Géosciences Montpellier, Montpellier Cedex 05, France
Primary Convener:  Stephane Mazzotti, Géosciences Montpellier, Montpellier Cedex 05, France
Convener:  Pascal Audet, University of Ottawa, Department of Earth and Environmental Sciences, Ottawa, ON, Canada
Index Terms:

7218 Lithosphere [SEISMOLOGY]
7230 Seismicity and tectonics [SEISMOLOGY]
8120 Dynamics of lithosphere and mantle: general [TECTONOPHYSICS]
8123 Dynamics: seismotectonics [TECTONOPHYSICS]
Co-Sponsor(s):
  • SE - Solid Earth
  • T - Tectonophysics

Abstracts Submitted to this Session:

S32A-01
Lower Crustal Detachment in the Cordillera and Other Hot Backarcs (Invited) (33930)
Roy D Hyndman, Geological Survey of Canada Sidney, Sidney, BC, Canada
S32A-02
The role of a sharp cratonic keel edge for lithospheric delamination and rapid orogenic plateau uplift, Canadian Cordillera (Invited) (34493)
David W S Eaton, University of Calgary, Department of Earth, Energy, and Environment, Calgary, AB, Canada, Xuewei Bao, University of Calgary, Geoscience, Calgary, AB, Canada and Bernard Guest, University of Calgary, Calgary, AB, Canada
S32A-03
Lithospheric Structure Across the Northern Canadian Cordillera from Teleseismic Receiver Functions (33829)
Azadeh Ashoori Pareshkoohi and Pascal Audet, University of Ottawa, Earth Sciences, Ottawa, ON, Canada
S32A-04
Strain transfer and partitioning across the Yakutat collision in SW Yukon – SE Alaska: Indentor corner dynamics (34168)
Stephane Mazzotti, Géosciences Montpellier, Montpellier Cedex 05, France, Anaïs Marechal, Organization Not Listed, Washington, DC, United States, Jean-Francois Ritz, University of Montpellier II, Montpellier Cedex 05, France, Matthieu Alexis Ferry, University of Montpellier - CNRS, Geosciences Montpellier, Montpellier, France and Jeffrey Todd Freymueller, Michigan State University, Earth and Environmental Sciences, East Lansing, MI, United States
S32A-05
The Development of Flat-Slab Subduction: Implications for the Laramide Orogeny (35177)
Claire A Currie, University of Alberta, Department of Physics, Edmonton, AB, Canada and Sibiao Liu, University of Alberta, Edmonton, AB, Canada
S32A-06
Seismic structure of the Haida Gwaii region using tomography and multiple migration of OBS data (36006)
Subbarao Yelisetti1, Michael Riedel1,2 and George Spence1, (1)University of Victoria, Victoria, BC, Canada, (2)Natural Resources Canada, Sidney, BC, Canada
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