global plate tectonics and geodynamics · global plate tectonics . and geodynamics . center for...
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GLOBAL PLATE TECTONICS AND GEODYNAMICS
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CENTER FOR EARTH EVOLUTION AND DYNAMICS UNIVERSITY OF OSLO
DIRECTOR: TROND H. TORSVIK Assoc. DIRECTOR: CARMEN GAINA
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VISION: Develop an Earth model that explains how mantle processes drive plate tectonics and trigger massive volcanism and associated environmental and climate changes throughout Earth history
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Mission: To develop a model that links surface volcanism with processes in the deep mantle Main Hypothesis: Mantle plumes from the edges of the stable LLSVPs explain the surface distribution of most hotspots, LIPs and kimberlites.
1.1: Absolute reference frames and links to the deep mantle 1.2: Composition, mineral physics and origin of the LLSVPs 1.3: Plumes from the margins of the LLSVPs: Toward a geodynamic model
PROJECTS: BEYOND PLATE TECTONICS (T.H. Torsvik) –ERC Advanced Grant
Deep Earth: Materials, structure and dynamics
BRISTOL UNIVERSITY UTRECHT UNIVERSITY
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Seton et al, 2012; Torsvik et al., 2008
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Torsvik et al., 2010
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Mission: To explore the link between the lithosphere and the convecting mantle and quantify how palaeogeography and TPW have influenced the climate system. Main Hypothesis: Motion of tectonic plates is closely related to mantle dynamics and the mantle dynamics drives major changes in Earth’s life.
2.1: Supercontinents, Palaeogeography and Biogeography 2.2: Wilson Kickoff: Passive Margins and Break-up 2.3: Continents adrift and oceanic basin formation, true polar wander & climate changes 2.4: Terminal Wilson: Subduction and Collision
Dynamic Earth: Plate motions and Earth history
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Torsvik et al., 2012
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Torsvik, T.H., Van der Voo, R., Doubrovine, P.V., Burke, K., Steinberger, B., Ashwal, L.D., Trønnes, R., Webb, S.J., Bull, A.L., 2014. Deep mantle structure as a reference frame for move-ments in and on the Earth. Proc. Nat. Ac. Sci. (in review). Bull, A.L., Domeier, M., Torsvik, T.H., 2014. The effect of plate-motion history on the longevity of deep mantle heterogeneities. Earth Planet. Sci. Lett. (in review).
PLATE TECTONICS MODEL 0-450 Ma is ROBUST and can explain (and reproduce) LLSVP
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GPlates EUROPEAN Node
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SEDIMENTARY BASINS
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LARGE SCALE GEODYNAMICS
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MINERAL RESOURCES
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LARGE IGNEOUS PROVINCES
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DEVELOP A GPlates LIKE PLATFORM FOR THE EUROPEAN DRIVEN EARTH MODEL
So far we have published most of our global models together with Australian and American colleagues (in both countries data collected with public money has to become freely available)
Seton et al., 2014
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CENTER FOR EARTH EVOLUTION AND DYNAMICS UNIVERSITY OF OSLO
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GPlates software development MOSTLY financed by Australian, American And Norwegian Research Funding Agencies (ARC-AuSCOPE, NSF, NFR) and minor Industry funding ALTHOUGH many companies are now using this free software (and associated global models)
Check earthcube.org; www.auscope.org.au
FULLY COUPLED EARTH MODEL?
DEVELOP A GPlates LIKE PLATFORM FOR THE EUROPEAN DRIVEN EARTH MODEL
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