Dear Isotope Geochemists,
We hope that everyone working on isotopes as tracers of mass transport and related geochemical processes will consider sharing their recent work in Goldschmidt session 06h (see detailed description below).
The abstract deadline is 30 March 2018.
Thank you from the conveners!
--Chloe Bonamici, Elias Bloch, Christy Till, Katharina Marquardt, Michael Jollands
Diffusion and Reaction in Minerals and Melts: Small Scale Processes with Large Scale Implications
Keynote Speaker: Thomas Shea (University of Hawai'i Manoa)
The closely-related processes of diffusion and reaction occur at the angstrom scale, yet can control large scale phenomena including mantle viscosity, electrical conductivity, and the timescales and efficiency of equilibration, magmatic processes and metamorphism. Diffusive and reactive transport of elements, isotopes, and molecules through solids and fluids can significantly affect the chemical composition and evolution of earth materials, the significance of dates obtained by geochronology and the pressures and temperatures retrieved from thermobarometry, for example. The last decade has seen simultaneous advancements in micro- to nano-scale analytical geochemistry, experimentally-determined diffusivities, and quantitative approaches for modeling diffusive mass transfer, such that it has seen an explosion of diffusion-related studies. In this session we invite all contributions discussing the nature and geochemical role of diffusive and reactive transport phenomena. This may include field observations, laboratory/experimental measurements, and theoretical and computational studies. We encourage contributions that bridge the gap between the micro- and macroscale, those that study the various timescales over which diffusion and reactive transport occur, and studies employing new experimental and analytical techniques, as well as innovative applications of existing approaches.