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Colleagues: It's not too late to submit an abstract for AGU! Deadline is September 7. We welcome you to submit to V29, a special session that covers virtually anything related to "crustal geochemistry" to honor Bruce Watson's receipt of the 2006 Bucher Medal. More below.... >>V29: >>Applications of Geochemistry to Understanding the Origin and >>Evolution of Earth's Crust >> >>Description: >>With ongoing improvements in instrumentation, geoscientists >>routinely measure - with ever-increasing spatial resolution - >>vanishingly low element concentrations and miniscule differences in >>isotope ratios in phases within crustal rocks. These data must then >>be interpreted in the context of pressure and temperature controls >>on element distribution among fluid and solid phases, rates of >>diffusive transport through earth materials at different P-T >>conditions, and even the disequilibrium chemical processes that may >>be associated with crystal dissolution and growth. Well-designed >>experiments not only provide input for geochemical modeling and >>hypothesis testing but also insights into how natural processes >>operate. They provide the tools needed to interpret measurements >>made on natural samples and to understand the geologic processes >>that produced the end result. This session invites science >>contributions thematically linked to the innovative and lasting >>work of Bruce Watson, the 2006 Bucher Medalist, including the >>transport and distribution of chemical components in crystals, >>fluids, and melts; geochemical and petrologic studies of rocks and >>minerals from all levels of the crust; and novel design and >>application of laboratory experiments in geochemistry. -- _________________________________________________ David A. Wark Dept of Earth & Environmental Sciences 1C16 Science Center; Rensselaer Polytechnic Institute Troy, New York 12180 office: 518-276-2674 fax: 518-276-2012 http://www.rpi.edu/~warkd/wark.html _________________________________________________