T21F:
Characterizing the Evolution of Craton Margins II

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Session ID#: 15996

Session Description:
Cratonic lithosphere underlies the stable, largely un-deformed cores of most continents globally. Archean cratons are often assumed to have a relatively simple internal architecture, with more complex structure (Moho topography and deep crust) in slightly younger Proterozoic blocks. In a number of locations around the globe, these thick, rheologically strong lithospheric blocks are juxtaposed immediately adjacent to regions of ongoing or geologically recent upper mantle deformation, such as the Cordilleras of North and South America. This sharp contrast in physical properties (e.g., temperature, viscosity, composition) leads to relatively unique dynamic conditions which have significant impact on the evolution of both the stable cratonic lithosphere and deformation within the tectonically active margin.

We invite contributions from different domains (seismology, geodynamics, geodesy, petrology, geochemistry, etc) to share their results which examine the crustal and lithospheric evolution of craton margins, including both the craton itself and the neighbouring tectonically active region.

Primary Convener:  Andrew J Schaeffer, University of Ottawa, Department of Earth and Environmental Sciences, Ottawa, ON, Canada
Conveners:  Claire A Currie1, Yu Jeffrey Gu1 and Catherine M Cooper2, (1)University of Alberta, Department of Physics, Edmonton, AB, Canada(2)Washington State University, School of the Environment, Pullman, United States
Chairs:  Andrew J Schaeffer, University of Ottawa, Department of Earth and Environmental Sciences, Ottawa, ON, Canada and Yu Jeffrey Gu, University of Alberta, Department of Physics, Edmonton, AB, Canada
OSPA Liaison:  Andrew J Schaeffer, University of Ottawa, Department of Earth and Environmental Sciences, Ottawa, ON, Canada
Co-Organized with:
Tectonophysics, and Seismology

Cross-Listed:
  • DI - Study of the Earth's Deep Interior
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology

Proposed Co-Organized Session with:
  • S - Seismology
Index Terms:

7218 Lithosphere [SEISMOLOGY]
8103 Continental cratons [TECTONOPHYSICS]
8110 Continental tectonics: general [TECTONOPHYSICS]
8120 Dynamics of lithosphere and mantle: general [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Rifting an Archaean Craton: Insights from Seismic Anisotropy Patterns in E. Africa (161464)
Cynthia J Ebinger, Tulane University, School of Science & Engineering, New Orleans, United States, Christel Tiberi, University of Montpellier II, Montpellier Cedex 05, France, Claire A Currie, University of Alberta, Department of Physics, Edmonton, AB, Canada, Jolante van Wijk, New Mexico Institute of Mining and Technology, Earth & Environmental Science, Socorro, United States and Julie Albaric, NOSAR, Kjeller, Norway
Destroying a Craton by Plate Subduction, Small-scale Convection, and Mantle Plume: Comparison of the Wyoming Craton and the North China Craton (190824)
Aibing Li, University of Houston, EAS, Houston, TX, United States and Riddhi Dave, University of Houston, Houston, United States
Crustal structure of the late-Archean to Proterozoic Glenburgh Terrane in the Western Australian Craton: roles of a micro-continent in craton formation and reworking (Invited) (118686)
Dr. Huaiyu Yuan1,2, Simon Johnson1, Michael Charles Dentith3, Ruth Murdie1, Klaus Gessner4, Fawna J Korhonen5 and Thomas Bodin6, (1)Geological Survey of Western Australia, East Perth, WA, Australia, (2)Centre for Exploration Targeting, University of Western Australia, Perth, Australia, (3)University of Western Australia, Crawley, WA, Australia, (4)The University of Western Australia, Crawley, Australia, (5)Geological Survey of Western Australia, East Perth, Australia, (6)LGL-TPE, Université Claude Bernard, Lyon1, CNRS, ENS, Villeurbanne, France
Continental Growth Along the Proto-Pacific Margin of East Gondwana in Australia: Insights from Seismic Tomography (144579)
Nicholas Rawlinson, University of Aberdeen, Aberdeen, United Kingdom, Simone Pilia, Petroleum Institute, Abu Dhabi, United Arab Emirates, Michelle Salmon, Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia, Yingjie Yang, Macquarie University, ARC Centre of Excellence for Core to Crust Fluid Systems and GEMOC, Sydney, NSW, Australia and Mallory K Young, Australian National University, Canberra, Australia
Thick and thin: Crust and lithospheric structure of the Mid-Atlantic Margin from the MAGIC seismic array (Invited) (126158)
Margaret H Benoit, College of New Jersey, Ewing, NJ, United States, Maureen D Long, Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States, Rob L Evans, Woods Hole Oceanographic Institution, Marine Geology and Geophysics, Woods Hole, MA, United States, Heather A Ford, Yale University, New Haven, CT, United States and James Elsenbeck, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
A Tale of Two Orogens: Comparing Crustal Processes in the Proterozoic Trans-Hudson and Grenville Orogens, Eastern Canada (162039)
Fiona Ann Darbyshire, University of Quebec at Montreal UQAM, Centre de recherche GEOTOP, Montreal, QC, Canada, Ian D Bastow, Imperial College London, Department of Earth Science and Engineering, London, SW7, United Kingdom, Amy Gilligan, University of Cambridge, Cambridge, United Kingdom and Laura Petrescu, Imperial College London, London, United Kingdom
Dipping Upper Mantle Boundary Beneath Southeastern Superior Province - a Trace of Archean Subduction? (165568)
Vadim L Levin, Rutgers University, Earth and Planetary Sciences, Piscataway, United States, Andrew Hynes, McGill University, Earth and Planetary Sciences, Montreal, QC, Canada, Andrea Servali, Rutgers University New Brunswick, New Brunswick, NJ, United States and William H Menke, Lamont-Doherty Earth Observatory, Palisades, NY, United States
Uplifting the Stable Crust of the Colorado Plateau through Crustal Hydration and Warming (125491)
Ryan C Porter, Northern Arizona University, Flagstaff, AZ, United States and William E Holt, Stony Brook University, Department of Geosciences, Stony Brook, NY, United States

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