Dear All,
As the deadline for the submission of abstracts to the Goldschmidt
Conference approaches (Jan 15), we would like to remind you of the sessions
on Diffusion-reaction at the meeting and encourage you to present your work
at one of these sessions. We have an impressive and very international set
of invited contributions that promise to make this a very exciting session.
We would also like to draw your attention to the fact that this is the 100th
anniversary of the Einstein-Schmoluchowski formulation of the random walk
diffusion equations, and the 150th anniversary of Fick's Law. More reason to
consider participating in the sessions.
The session descriptions are appended below. The list of Keynote and invited
speakers for the Diffusion- Reaction session are:
Keynote: Prof. Bjorn Jamtveit (Oslo, Norway), Prof. Bernard Boudreau
(Dalhousie, Canada).
Invited: Dr. Eric Sonnenthal (Lawrence Berkeley Laboratories, U.S.A.), Dr.
Edward Bolton (Yale University, U.S.A.), Dr. Yan Liang (Brown University,
U.S.A.), Dr. Josep Soler (Barcelona, Spain), Dr. Bernhard Wehrli (ETH,
Switzerland), Dr. Qinjun Kang (Los Alamos, U.S.A.), Dr. Parisa Jourabchi
(Utrecht, Netherlands) and Dr. Max Tirone (Cornell University, U.S.A.).
Thanks,
Sumit
for:
Carl Steefel, Philippe van Capellen and Sumit Chakraborty, Convenors
********* Session Descriptions ********************
***************** Diffusion – Reaction Session *****************
Intergranular diffusion-reaction systems are extremely important in
influencing and even controlling elemental and nutrient fluxes and
water-rock interaction in a large range of geologic settings. Such
seemingly diverse processes as microbially-mediated biogeochemical reaction
networks in marine sediments, contaminant transport in aquifers, chemical
weathering, water-rock interaction processes in deep crystalline rocks, and
extraction of melts from the deep Earth all can be described partly or
wholly as diffusion-reaction systems. The purpose of this special session
is to explore new and innovative characterization, experimental, and
modeling approaches to unravel the dynamics of the diffusion-reaction
systems in a variety of geologic environments. Special emphasis will be on
integrated studies that illuminate the fundamental, cross-cutting aspects of
diffusion-reaction systems as they are manifested in the diverse branches of
the geosciences.
******************** Diffusion Grain Boundary Session ***************
The goal of this symposium is to bring together mineralogists, petrologists,
geochemists, experimental petrologist/mineralogists, and even geophysicists
in order to first describe and then interpret various examples of
interactions between minerals along their common grain boundaries. Such
comparisons allow for a common understanding to be developed as to the
physics and chemistry of how such interactions occur and what role P-T
conditions may play; how the creation or consumption of space affects the
reaction rate between two adjoining
mineral grains as well as fluid flow; how fluids may aid or hinder mineral
grain boundary interactions; and what implications mineral grain boundary
interactions may have on the rock
fabric as a whole with respect to ist permeability, response to deformation,
and various geophysical effects such as conductivity.
********************
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