T52A:
Integrating Multiple Geo-observables to Robustly Constrain Crust and Uppermost Mantle Structure and Dynamics at Global and Continental Scales III

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Session ID#: 16601

Session Description:
Global lithosphere-uppermost mantle models based on different geo-observables often lead to differing images of the Earth. Established methods of seismic tomography, gravity, topography, EM and geodynamic modelling constrain physical properties, dependent upon temperature and composition within the Earth; theoretical and experimental petrology, geochemistry and mineral physics provide a basis to study in-situ properties of rocks from atomic to centimetric scales. The availability of high-resolution global geophysical datasets (terrestrial and satellite) combined with new computational petrology methods and laboratory studies offers an excellent opportunity to consistently image lithospheric structure and dynamic evolution. Modelling and interpreting multiple datasets enables multifaceted imaging of the thermochemical structure and dynamic state of the Earth; however, linking crust and upper mantle structure with geodynamic models at a global scale remains challenging.

We invite contributions focusing on crust and uppermost mantle properties and dynamic state from all solid Earth science disciplines at a global and continental scales.

Primary Convener:  Javier Fullea, Complutense University of Madrid, Physics of the Earth and Astrophysics, Madrid, Spain
Conveners:  Andrew J Schaeffer, University of Ottawa, Department of Earth and Environmental Sciences, Ottawa, ON, Canada, Sergei Lebedev, Dublin Institute for Advanced Studies, Dublin, Ireland and Joerg Ebbing, University of Kiel, Geosciences, Kiel, Germany
Chairs:  Javier Fullea, Complutense University of Madrid, Physics of the Earth and Astrophysics, Madrid, Spain and Joerg Ebbing, University of Kiel, Geosciences, Kiel, Germany
OSPA Liaison:  Joerg Ebbing, University of Kiel, Geosciences, Kiel, Germany
Co-Organized with:
Tectonophysics, and Seismology

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

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

8120 Dynamics of lithosphere and mantle: general [TECTONOPHYSICS]
8124 Earth's interior: composition and state [TECTONOPHYSICS]
8159 Rheology: crust and lithosphere [TECTONOPHYSICS]
8164 Stresses: crust and lithosphere [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Global Electromagnetic Imaging of Lithosphere and Upper Mantle from Space and Ground. Recent Results and Challenges (Invited) (143398)
Alexey V Kuvshinov, ETH Zurich, Institute of Geophysics, Zurich, Switzerland
High–Resolution Lithosphere Viscosity and Dynamics Revealed by Magnetotelluric Imaging (135451)
Lijun Liu, University of Illinois at Urbana Champaign, Geology, Urbana, United States and Derrick P Hasterok, University of Adelaide, Dept of Earth Sciences, Adelaide, SA, Australia
Inferring Crustal Viscosity Structure from Seismic Velocity Data (139231)
William Joseph Shinevar, Woods Hole Oceanographic Institution, Woods Hole, United States, Mark D Behn, Woods Hole Oceanographic Institution, Geology and Geophysics, Woods Hole, MA, United States, Greg Hirth, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, RI, United States and Oliver E Jagoutz, MIT Lincoln Laboratory, Lexington, MA, United States
Effect of Upper Mantle Heterogeneities on Lithosphere Stresses and Topography (150843)
Anthony Osei Tutu1, Bernhard Steinberger1, Irina Rogozhina2 and Stephan V Sobolev3, (1)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Geodynamic modelling, Potsdam, Germany, (2)MARUM - Center for Marine Environmental Sciences, University of Bremen, Geosystem modelling, Bremen, Germany, (3)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Geodynamic Modelling Section, Potsdam, Germany
Residual Topography at the Edges of the Icelandic Plume (156451)
Charlotte Schoonman1, Nicky White2, Richard Luckett3 and Brian Baptie3, (1)University of Cambridge, Scott Polar Research Institute, Cambridge, United Kingdom, (2)University of Cambridge, Bullard Laboratories, Cambridge, United Kingdom, (3)British Geological Survey, Edinburgh, United Kingdom
A magmatic probe linking mantle temperature and dynamic topography beneath western North America (135089)
Marthe Klöcking1, Nicholas J White2, John Maclennan2 and J Godfrey Fitton3, (1)University of Cambridge, Bullard Laboratories, Cambridge, United Kingdom, (2)University of Cambridge, Cambridge, United Kingdom, (3)University of Edinburgh, School of GeoSciences, Edinburgh, United Kingdom
Crust and mantle structure under Botswana - the new key-player in African geodynamics? (154603)
Mark van der Meijde, University of Twente, Earth Systems Analysis, Enschede, Netherlands, Islam Fadel, University of Twente, Earth System Analysis, Enschede, 7500, Netherlands and Hanneke Paulssen, Utrecht University, Dept. of Earth Sciences, Utrecht, Netherlands
Geophysical Investigations of Crustal and Upper Mantle Structure of Oceanic Intraplate Volcanoes (OIVs) (138300)
Adam Hackett Robinson1, Christine Peirce1, Matthew James Funnell1, Anthony Brian Watts2 and Ingo Grevemeyer3, (1)University of Durham, Durham, United Kingdom, (2)University of Oxford, Earth Sciences, Oxford, United Kingdom, (3)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany

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