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EGS-AGU-EUG Joint Assembly Nice, France, 06 - 11 April 2003

MG15 Experimental Rheology at Extreme Conditions
http://www.cosis.net/members/meetings/sessions/information.php?session=867

Natural rock deformations usually occur at extremes conditions of temperature, pressure, fluid fugacity, at extremely low (mantle convection) or extremely high (earthquake) strain rates, inducing often large strain in generally very complex materials that can be fractured, partially molten or experiencing phase transformations. Most natural deformation conditions cannot be reproduced experimentally.

Significant progress, however, has been achieved over the past decade in our ability to reproduce and/or simulate natural deformation conditions. Breakthroughs in experimental techniques, which extended dramatically the domain of condition achievable during deformation experiments, as well as the development of powerful computations for extrapolating experimental results to natural extreme conditions, allow today new experimental approaches and simulations of natural deformation processes.

The focus of this session is to give a broad view of current experimental and computational developments aiming to reducing the gap between experimental and natural deformation conditions. We particularly encourage contributions dealing with:

• Extremely high-pressure deformation experiments.
• Low strain rate or large strain experiments.
• The impact of partial melt and/or fluid fugacity on rocks deformation.
• The effect of phase transformations on rocks deformation.
• The simulation of processes involving simultaneously several deformation mechanisms.
• The study of heterogeneities leading to localized deformation and/or instability in rocks.
• The scale gap between deformation processes (from the atomic to the continental scale).

More information on registration and abstract upload can be found on the EGS-AGU-EUG Joint Assembly website (http://www.copernicus.org/egsagueug/index.html).

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