T24B:
Multidisciplinary Perspectives on the Continental Mantle Lithosphere and Lithosphere-Asthenosphere Boundary III Posters

Submit an Abstract to this Session

Session ID#: 6097

Session Description:
In the last several decades, multi-disciplinary programs (e.g., Lithoprobe, Earthscope) have provided new insights into the structure of the continental lithosphere and the nature of the lithosphere-asthenosphere boundary (LAB). Instead of being a homongenous region of stable lithosphere, continental mantle lithosphere exhibits internal layering, lateral variations in composition and thickness, episodic destabilization, and often has a complex lower boundary. The nature of this lower boundary—the LAB—remains elusive despite numerous studies utilzing various geophysical, geochemical, and petrological techniques. Such studies have demonstrated the LAB likely consists of a boundary (or gradient) in composition, temperature, anisotropy, resistivity, hydration and/or small volumes of melt.

In this session we invite abstracts which address the structure, evolution, and dynamics of the continental lithosphere, and the nature of the LAB, dervied from a range of geophysical and geological perspectives, including seismology, geodynamic modelling, electromagnetics, geochemistry, and petrology.

OSPA Liaison:  Andrew J Schaeffer, Dublin Institute for Advanced Studies, Dublin, Ireland
Chairs:  Andrew J Schaeffer, Dublin Institute for Advanced Studies, Dublin, Ireland and Claire A Currie, University of Alberta, Department of Physics, Edmonton, AB, Canada
Primary Convener:  Andrew J Schaeffer, Dublin Institute for Advanced Studies, Dublin, Ireland
Conveners:  Claire A Currie1, Yu Jeffrey Gu1 and Christy B. Till2, (1)University of Alberta, Department of Physics, Edmonton, AB, Canada(2)Arizona State University, School of Earth & Space Exploration, Tempe, AZ, United States
Index Terms:

7218 Lithosphere [SEISMOLOGY]
8103 Continental cratons [TECTONOPHYSICS]
8120 Dynamics of lithosphere and mantle: general [TECTONOPHYSICS]
8124 Earth's interior: composition and state [TECTONOPHYSICS]
Co-Sponsor(s):
  • S - Seismology
  • SE - Solid Earth
  • VGP - Volcanology, Geochemistry, and Petrology

Abstracts Submitted to this Session:

 
T24B-0384
Glacial erosion during orogenesis: A study of the intraplate Eurekan Orogeny of Ellesmere Island. (34416)
Joseph Michael Housam, University of Toronto, Earth Sciences, Toronto, ON, Canada, Russell Pysklywec, University of Toronto, Department of Earth Sciences, Toronto, ON, Canada, Philip Heron, University of Toronto, Physical and Environmental Sciences, Toronto, ON, Canada and Randell Stephenson, University of Aberdeen, Aberdeen, United Kingdom
 
T24B-0385
Computational Modelling of the Continental Collision near South Island, New Zealand (35912)
Lev Karatun1, Russell Pysklywec1 and Cedric Thieulot2, (1)University of Toronto, Department of Earth Sciences, Toronto, ON, Canada, (2)Utrecht University, Utrecht, Netherlands
 
T24B-0387
The Gravity and Magnetic Field Characteristics of North China Area and Its Tectonic Significance. (33237)
Zhaoxi Chen1, Xiaohong Meng1 and Changli Yao2, (1)China University of Geosicences(Beijing), Beijing, China, (2)China University of Geosciences Beijing, School of Geophysics and Information Technology, Beijing, China
See more of: Tectonophysics