S007
Combining potential field data and seismology to elucidate the structure, composition and evolution of Earth's lithosphere and mantle
Session ID#: 81186
Session Description:
Seismology is presently the most important tool for imaging the deep interior of our planet. Many subsurface structures depend, however, on variations in rheological parameters and temperature that are not always easily detectable with seismic techniques since seismology is not necessarily sensitive to such variations. Gravity and magnetic measurements, from e.g. GOCE and Swarm satellites, provide information on the mass density, magnetization and electrical conductivity of Earth’s interior, thereby greatly improving our knowledge on the 3D Earth and adding crucial constraints on its structure and composition.
We invite contributions that make innovative use of geophysical data, applying an integrated approach based on gravity, (electro-)magnetics, seismology, in combination with mineral physics data and models for imaging the 3D Earth. Focus is on 3D Earth studies that are guided by the different discontinuities in the Earth and corresponding changes in temperature, pressure, and composition: crust, lithospheric mantle, sub-lithospheric mantle and lower mantle.
Co-Organized:
Index Terms:
1219 Gravity anomalies and Earth structure [GEODESY AND GRAVITY]
1236 Rheology of the lithosphere and mantle [GEODESY AND GRAVITY]
7205 Continental crust [SEISMOLOGY]
8124 Earth's interior: composition and state [TECTONOPHYSICS]
Primary Convener: Mark van der Meijde, University of Twente, Enschede, 7500, Netherlands
Conveners: Joerg Ebbing, University of Kiel, Kiel, Germany and Juan Carlos Afonso, Macquarie University, Sydney, NSW, Australia
Primary Liaison: Mark van der Meijde, University of Twente, Enschede, 7500, Netherlands
The Deep Lithospheric Structure of the Junggar Terrane, NW China: Implications for Its origin and Tectonic evolution (487855)
Anqi Zhang1,2, Juan Carlos Afonso2, Shucheng Wu3, Yixian Xu4 and Yingjie Yang2, (1)China University of Geosciences (Wuhan), Institute of Geophysics and Geomatics, Marsfield, China, (2)Macquarie University, ARC Centre of Excellence for Core to Crust Fluid Systems and GEMOC, Sydney, Australia, (3)Nanyang Technological University, Division of Mathematical Sciences, School of Physical and Mathematical Sciences, Singapore, Singapore, (4)Zhejiang University, School of Earth Sciences, Hangzhou, China
On the joint inversion of seismic waveforms and gravimetric anomalies – Application to the Pyrenees (499262)
Nian Wang1, Roland Martin1, Plazolles Bastien1, Sebastien Chevrot1 and Dmitry Borisov2, (1)GET Géosciences Environnement Toulouse, Toulouse, France, (2)University of Kansas, Kansas Geological Survey, Lawrence, KS, United States
Joint Gravity and Full-wave Seismic Inversion Towards Self-Consistent Wave Speed and Density Models (501971)
Xueyang Bao, Southern University of Science and Technology, Department of Earth and Space Sciences, Shenzhen, China, Lianghui Guo, China University of Geosciences (Beijing), School of Geophysics and Information Technology, Beijing, China and Yang Shen, University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States
Refined Imaging and Modelling of the Ivrea Geophysical Body Through New Gravity Data, Anomaly Products and Seismic Constraints (516258)
Matteo Scarponi1, György Hetényi1, Theo Berthet2, Ludovic Baron1, Jaroslava Plomerova3, Stefano Solarino4 and AlpArray-Ivrea Working Group, (1)University of Lausanne, Lausanne, Switzerland, (2)Uppsala University, Uppsala, Sweden, (3)Institute of Geophysics, Prague, Czech Republic, (4)INGV, Genova, Italy
The Lithospheric Density Structure of the Antarctic Continent from Integrated 3D Gravity and Petrological Modelling (531591)
Folker Pappa1, Joerg Ebbing1, Fausto Ferraccioli2, Wouter van der Wal3 and Adam P. Martin4, (1)University of Kiel, Kiel, Germany, (2)NERC British Antarctic Survey, Cambridge, United Kingdom, (3)Delft University of Technology, Faculty of Aerospace Engineering (AE), Delft, Netherlands, (4)GNS Science, Lower Hutt, New Zealand
Deciphering the petrophysics and petrology of the Ivrea Geophysical Body (Alps) by combining laboratory data and thermodynamic modelling (537021)
Mattia Pistone1, Luca Ziberna2, György Hetényi1, Matteo Scarponi1, Alberto Zanetti3 and Othmar Müntener1, (1)University of Lausanne, Lausanne, Switzerland, (2)Bayerisches Geoinstitut, Bayreuth, Germany, (3)CNR, Pavia, Italy
