******************************************************************** From: Fidel Costa <fcosta@xxxxxxxxxxx> ******************************************************************** Dear All, we would like to draw your attention to the session ''Geochronology of igneous processes (GMPV30)'' which will happen at the European Geosciences Union General Assembly, in Vienna 13 – 18 April 2008. Please see URL link and session description below (http://meetings.copernicus.org/egu2008/). Abstract deadline is 14th of January 2008. Please note there is financial support available to attend the meeting (mainly for students) in which case your abstract needs to be submitted before the 7th of December 2007. http://meetings.copernicus.org/egu2008/financial_support.html We hope to see you all there! best regards, Paul Renne (prenne@xxxxxxx; Berkeley Geochronology Center, USA) Fidel Costa (fcosta@xxxxxxxxxxx; ITJA, CSIC, Spain) Session description: Single crystal Ar/Ar dating and ion microprobe U-Th/Pb multiple age determination in a single crystal show that magma residence times may vary from a few thousand years to more than several hundred thousands of years. Complementary time information obtained from modeling the reequilibration of the chemical zoning of crystals shows that magmatic assimilation or magma mixing can be much shorter, a few decades or less. This session wants to expose the recent geochronological findings on magmatic systems and move towards establishing a hierarchy of processes according to their duration and the size of the system. We welcome abstracts that use any geochronological tool to constrain the rates of igneous processes. Topics may range from the time involved for the construction of a large igneous province or plutonic complex, the rates of magmatic differentiation, to the duration of processes necessary for triggering a single eruption. ************************************************************ Fidel Costa Rodriguez Institut de Ciences de la Terra Jaume Almera, CSIC c/ LLuis Sole i Sabaris s/n Barcelona 08028 SPAIN phone: + 34 93 4095410 (ext. 265) fax: + 34 93 4110012 email: fcosta@xxxxxxxxxxx web: www.gvb-csic.es ************************************************************* ============================================================== To unsubscribe from the volcano list, send the message: signoff volcano to: listserv@xxxxxxx, or write to: volcano-request@xxxxxxxx To contribute to the volcano list, send your message to: volcano@xxxxxxxx Please do not send attachments. ==============================================================
