Fall AGU 1999 Announcement
On the Geochemical Earth Reference Model
The GERM Initiative will be presented at the Fall AGU meeting in two sessions:
Please consider contributing to these sessions! If you have questions, please contact the conveners!
The GERM Session Program and Abstract Volume in PDF form
U06 The Solid Earth's Chemistry: Global Inventories and Fluxes
Significant advances with the identification of recycled components in the mantle, with metal-silicate elemental fractionation at high pressure, and with flux inventories at ridge crest and subduction zones mirror the progress accomplished by mantle seismic tomography. Time has now come to integrate these new findings into a global model of the solid Earth and to summarize what we are learning about the composition of reservoirs otherwise inaccessible and their exchange of material. Using the results of the GERM and REM initiatives as background, a strong priority will be given to the integration of the chemical and physical properties of the major terrestrial reservoirs into an optimum reference model. Geochemical messages from the geological record and the modern chemical differentiation of the Earth will also be analyzed with reference to the long-term geochemical dynamics and with emphasis on mantle convective regimes.
Conveners
Francis Albarede
Ecole Normale Superieure de Lyon
46 Allee d'Italie
69364 Lyon cedex 7 France
Phone: 33 472 728 414
Fax: 33 472 728 677
Erik Hauri
Department of Terrestrial Magnetism
Carnegie Institute of Washington
5241 Broad Branch Road NW
Washington DC 20015 USA
Phone: 1 202 686 4391 or 202 686 4370 ext. 4391
Fax: 1 202 364 8726
V09 The Geochemical Earth Reference Model (Joint with OS)
The Geochemical Earth Reference Model special session solicits papers that help us understand the Earth as a complex, dynamic chemical system. How do the major chemical Earth reservoirs (core, mantle, crust, ocean, atmosphere) interact? By what processes and over what time-scales are fluxes between these reservoirs mediated, and how have these fluxes affected Earth evolution through time? The sessions will reach across Earth science disciplines, including, but not limited to, low- and high-temperature geochemistry, biogeochemistry, geochemical evolution, petrology, experimental and theoretical Earth sciences, as well as geophysics. We hope to attract papers that improve our understanding of processes, geochemical inventories, and fluxes on a range of time-scales. This session will be coordinated with a Union session on integrated physical and chemical models of the deep Earth.
Conveners
Hubert Staudigel
Scripps Institution of Oceanography and Institute of Geophysics and Planetary Physics
San Diego, CA 92093-0225 USA
Phone: 1 619 534 8764
Fax: 1 619 534 8090
Louis A. Derry
Cornell University
Department of Geological Sciences
Ithaca, NY 14853-1504 USA
Phone: 1 607 255 9354
Fax: 1 607 254 4780