Chercheurs

Sciences de la Terre / SCHELLART, WOUTER PIETER

wouter.schellart

Position

Research Fellow in the Geophysical Fluid Dynamics Group [Earth Physics], Research School of Earth Sciences, Australian National University, Australia.

Thèmes de recherche

* Subduction kinematics and dynamics.
* Subduction-induced mantle flow.
* Arc - back-arc system evolution and dynamics.
* Geodynamic modelling (physical and numerical).
* Physical properties of analoge modelling materials.
* Large-scale tectonic reconstructions.
* Mountain building and mountain destruction.
* Mesoscale structural geology.

Current research activities:

* Fluid dynamic simulations of subduction, slab rollback and subduction induced flow in the mantle. The simulations take place in the Fluid Dynamics Laboratory at the Research School of Earth Sciences from the Australian National University in Canberra.
* Building a Cenozoic reconstruction of the Southwest Pacific region between Australia, New Zealand and Fiji. The reconstructions make use of the Platyplusplus reconstruction software. The region has experienced multiple episodes of rifting and back-arc extension, possibly related to eastward rollback of the Pacific slab.
* Numerical simulations of subduction with the SNARK numerical code, which has been specifically designed to model geodynamic processes in three-dimensional space.

Prix et récompenses

* Best overall poster award at the 14th Victorian Universities Earth Sciences Conference held at Monash University in Melbourne, Australia, in September 2000.
* Best poster award for the structure/tectonics session at the 16th Victorian Universities Earth Sciences Conference held at Melbourne University in Melbourne, Australia, in September 2002.
* Best overall poster award at the 16th Victorian Universities Earth Sciences Conference held at Melbourne University in Melbourne, Australia, in September 2002.
* Molly Holman Doctoral Medal for the best PhD-thesis in the Faculty of Science at Monash University in the year 2003.

Publications

Papers:

Schellart, W.P., Shear test results for cohesion and friction coefficients for different granular materials: scaling implications for their usage in analogue modelling. Tectonophysics 324 , 1-16, 2000.

Schellart, W.P., Analogue modelling of large-scale tectonic processes: An introduction. In: Analogue modelling of large-scale tectonic processes, edited by W.P. Schellart and C. Passchier. Journal of the Virtual Explorer 7, 1-6, 2002.

Schellart, W.P., G.S. Lister and M.W. Jessell, Analogue modeling of arc and backarc deformation in the New Hebrides arc and North Fiji Basin. Geology 30 , 311-314, 2002.

Schellart, W.P., G.S. Lister and M.W. Jessell, Analogue modelling of asymmetrical back-arc extension. In: Analogue modelling of large-scale tectonic processes, edited by W.P. Schellart and C. Passchier. Journal of the Virtual Explorer 7, 25-42, 2002.

Schellart, W.P., G.S. Lister and M.W. Jessell, Some experimental insights into arc formation and back-arc extension. Bollettino di Geofisica Teorica ed Applicata 42 (suppl. 1/2), 85-91, 2002.

Schellart, W.P., Alpine deformation at the Western Termination of the Axial Zone, Southern Pyrenees. In: Reconstruction of the evolution of the Alpine-Himalayan orogeny, edited by G. Rosenbaum and G.S. Lister. Journal of the Virtual Explorer 8, 35-56, 2002.

Schellart, W.P. and D.A. Nieuwland, 3D evolution of a pop-up structure above a double basement strike-slip fault: Some insights from analogue modelling. Geological Society Special Publications 212 , 169-179, 2003.

Schellart, W.P., M.W. Jessell and G.S. Lister, Asymmetric extension in the backarc region of the Kuril Arc, Northwest Pacific: Some insights from analogue modelling. Tectonics 22 (5), 1047, doi:10.1029/2002TC001473, 2003.

Schellart, W.P., Quantifying the net slab pull force as a driving mechanism for plate tectonics. Geophysical Research Letters 31 , L07611, doi:10.1029/2004GL019528, 2004.

Schellart, W.P. and G.S. Lister, Tectonic models for the formation of arc-shaped convergent zones and backarc basins. In: Orogenic Curvature: integrating paleomagnetic and structural analyses, edited by A.J Sussman and A.B. Weil, Geological Society of America - Special Paper 383 , 237-258, 2004.

Schellart, W.P., Kinematics of subduction and subduction-induced flow in the upper mantle. Journal of Geophysical Research 109 , B07401, doi:10.1029/2004JB002970, 2004.

Sandiford, M., D. Coblentz, and W. P. Schellart, Evaluating slab-plate coupling in the Indo-Australian plate. Geology (in press).

Schellart, W.P., Influence of the horizontal velocity of the subducting plate on the hinge-migration of the slab. Earth and Planetary Science Letters (in press).

Papers (in review/submitted):

Schellart, W.P., G.S. Lister and V. Toy, A Cenozoic tectonic reconstruction of the Southwest Pacific region. (in review).

Schellart, W.P. and G.S. Lister, The role of the East Asian active margin in widespread extensional and strike-slip deformation in East Asia. (in review).

Edited books:

Schellart, W.P. and C. Passchier: Analogue modelling of large-scale tectonic processes .Journal of the Virtual Explorer 7.

Abstracts:

Schellart, W.P., G.S. Lister and M.W. Jessell, Analogue modelling of back-arc extension. Geological Society of Australia, Abstracts 59 , 442, 2000. (oral)

Schellart, W.P., Cohesion and friction coefficients of dry granular materials. Geological Society of Australia, Abstracts 59 , 441, 2000. (poster)

Schellart, W.P., G.S. Lister and M.W. Jessell, Physical modelling of back-arc extension. Geological Society of Australia, Abstracts 62 , 27, 2000. (poster)

Schellart, W.P., G.S. Lister and M.W. Jessell, Physical modelling of back-arc extension. Eos, Transactions, American Geophysical Union 81 (48), 1115, 2000. (poster)

Schellart, W.P. and M.W. Jessell, The role of potential energy in the collapse of mountain belts. Geological Society of Australia, Abstracts 63 ,163-164, 2001. (oral)

Schellart, W.P., M.W. Jessell and G.S. Lister, Kinematics and Dynamics of opening of the North Fiji back-arc Basin. Geological Society of Australia, Abstracts 66 , 30, 2001. (poster)

Schellart, W.P. and D.A. Nieuwland, 4D modelling of pop-up structures during strike-slip faulting: Some insights from analogue modelling. Geological Society of Australia, Abstracts 67 , 188, 2002. (poster)

Schellart, W.P., G.S. Lister and M.W. Jessell, Arc-perpendicular spreading ridges in the North Fiji Basin. Geological Society of Australia, Abstracts 67 , 92, 2002. (poster)

Schellart, W.P., M.W. Jessell and G.S. Lister, Back-arc deformation in the Kuril Basin and Sea of Okhotsk: Far field effect of India-Eurasia collision or the result of rollback of the Pacific slab? Geological Society of Australia, Abstracts 67 , 146, 2002. (oral)

Schellart, W.P., M.W. Jessell and G.S. Lister, Back-arc deformation in the Kuril Basin and Sea of Okhotsk, Northwest Pacific. Geological Society of Australia, Abstracts 69 , 47, 2002. (poster)

Schellart, W.P. and G.S. Lister, Fluid dynamical modelling of subduction in the upper mantle. Geological Society of Australia, Abstracts 69 , 49, 2002. (poster)

Schellart, W.P. and G.S. Lister, Modelling insights into the dynamics of subducting slabs in the upper mantle. Geological Society of Australia, Abstracts 72, 143, 2003. (poster)

Schellart, W.P., G.S. Lister, G. Rosenbaum and C. Duboz, Episodic opening of back-arc basins: a case study from the Southwest Pacific. Geological Society of Australia, Abstracts 72, 144, 2003. (poster)

Schellart, W.P., The role of the effective slab pull force in driving tectonic plates. Geological Society of Australia, Abstracts 73 , 211, 2004. (oral)

Schellart, W.P. and V. Toy, Reconstruction of the Southwest Pacific since 65 Ma. Geological Society of Australia, Abstracts 73 , 212, 2004. (poster)

Schellart, W.P., Kinematic aspects of slab subduction in the upper mantle. Geological Society of Australia, Abstracts 73 , 212, 2004. (poster)

Schellart, W.P., Three-dimensional fluid dynamic modeling of subduction and mantle flow. Eos Trans. AGU 85 (28), 153, West. Pac. Geophys. Meet. Suppl., Abstract T42A-02. (oral)

Freeman, J., and W.P. Schellart, Three-dimensional numerical simulations of subduction and subduction-induced mantle flow. Eos Trans. AGU 85 (28), 153, West. Pac. Geophys. Meet. Suppl., Abstract T42A-04. (oral)

Schellart, W.P., G.S. Lister, and V.G. Toy, Episodic migration of the Australian-pacific plate boundary during the Cenozoic. Eos Trans. AGU 85 (28), 151, West. Pac. Geophys. Meet. Suppl., Abstract T34A-01. (oral)

Stegman, D., J. Freeman, W.P. Schellart, L. Moresi, D. May and R. Turnbull, Reevaluating plate driving forces from 3-D models of subduction. Eos Trans. AGU 85 (47), Fall Meeting Suppl., Abstract T31A-1270, 2004. (poster)

Freeman, J., D.R. Stegman, W.P. Schellart, L. Moresi, D.A. May and R. Turnbull, Three-dimensional numerical simulations of subduction and subduction-induced mantle flow. Eos Trans. AGU 85 (47), Fall Meeting Suppl., Abstract T21B-0534, 2004. (poster)

Theses:

Schellart, W.P., Alpine deformation at the Western Termination of the Axial Zone, Southern Pyrenees. Doctoral Thesis, Vrije Universiteit, Amsterdam, 1998.

Schellart, W.P., Analogue modelling of basement involved strike-slip faulting. . thesis, Vrije Universiteit, Amsterdam, 1998.

Schellart, W.P., Subduction Rollback, Arc Formation and Back-Arc Extension. Ph.D. thesis, Monash University, Melbourne, 2003.