Dienstag, 6. Januar 2009

(EGU): Complex processes in metamorphic and magmatic environments: experiments, theory, and modelling

there is one week left to submit your contributions for the EGU General
Assembly in Vienna, April 19-24.
I like to draw your attention to our session
Complex processes in metamorphic and magmatic environments: experiments,
theory, and modelling
Convener Ralf Milke, co-conveners John Wheeler, Leonid Aranovich, Andrew
Putnis

Session abstract:
There is recently great progress in the understanding of the mechanisms
behind metamorphic processes and the rates at which they perform. One
reason lies the advancement in experimental techniques and
microanalytical capabilities that allow chemical and structural analysis
on ever smaller scale. This development is paralleled by the advent of
theoretical tools that clear the way for a realistic computation of
complex reaction and deformation processes in multicomponent systems. It
has become feasible to combine the driving forces determined by
thermodynamics (phase equilibria, phase transitions) and rheology
(chemical-mechanical feedback) with reaction kinetics (e.g. diffusion,
nucleation, crystal growth) in a way applicable to natural rocks.
Examples include texture evolution, chemical and isotopical zoning in
crystals and the migration and chemical nature of grain boundaries. Due
to computational opportunities, insight on small-scale is now with high
resolution applied to big-scale metamorphic processes in the broadest
sense (e.g. tectonics, chemical mass transport in crust and mantle).
Contributions are welcome that address advances in any of these topics.
http://meetingorganizer.copernicus.org/EGU2009/session/392
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