Dear colleagues,
We would like to bring the following session at the AGU Fall Meeting to
your attention and encourage you to submit an abstract:
T30: Progress in Subduction Modeling
Subduction zones display a wide range of slab morphologies, upper plate
deformation regimes, plate and trench motions and mantle flow patterns.
Models of varying degrees of complexity have been used to understand
natural subduction regimes and their variability in space and time.
Recent progress in models of subduction zone processes includes the
incorporation of slab petrology and phase changes, the evaluation of
effects of three-dimensionality, and an improving capability to model
the evolution of the slab and trench in a dynamically self-consistent
way. The aim of this session is to showcase the latest results of
numerical and analogue models of subduction and initiate discussion of
their current achievements and challenges. We also welcome studies that
describe how observations (e.g., seismic and gravity) and laboratory
measurements can be used to constrain which processes are most important
in natural subduction and what parameter values, particularly for
rheology, are applicable to the Earth. Topics that may be considered
include, but are not restricted to: the strength of slabs, the role of
pressure- and temperature-dependent rheologies (plasticity, grain-size
weakening), the depth extent of slabs, the effect of phase transitions,
and the role of the overriding plate.
Conveners:
Susanne Buiter (Geological Survey of Norway)
Saskia Goes (Imperial College London)
Peter van Keken (University of Michigan)
Sponsor: Tectonophysics
Co-sponsoring: Mineral and Rock Physics, Seismology, Study of Earth's
Deep Interior
General information:
AGU Fall Meeting, 10-14 December 2007, San Francisco, USA
website: http://www.agu.org/meetings/fm07//
Abstract deadline: 6 September 2007
We look forward to seeing you in San Francisco!
Susanne Buiter (susanne.buiter-at-ngu.no)
Saskia Goes (s.goes-at-imperial.ac.uk)
Peter van Keken (keken-at-umich.edu)
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