************************************************************* From: Alison Shaw <ashaw@xxxxxxxx> ************************************************************* Dear Colleagues, Please consider submitting an abstract to the following Union session at this Fall's AGU meeting (15-19 December). This session will bring together researchers from a diverse set of backgrounds who study the role of fluids at convergent margins. All the best, Alison Shaw Please not that the abstract deadline is September 10. U20: Fluids at Convergent Margins: Synthesis of Observations, Experiments and Models Conveners: Peter van Keken (University of Michigan), Alison Shaw (WHOI,Demian Saffer (Penn State), Kaj Hoernle (IFM-Geomar) Invited speakers: Karen Fisher (Brown University), Gray Bebout (Lehigh University), Ikuko Wada (Pacific Geoscience Centre), Cesar Ranero (Instituto de Ciencias del Mar) Water and other fluids play defining roles in subduction zone processes over a wide range of depths and scales. At shallow levels these processes include diagenesis and alteration, fault zone stability and seismogenesis, and coupling of deformation between subducting and overriding plate. Fluids likely play an important role in controlling shallow seismic events at the plate interface. Deeper in the subduction zone fluids control dehydration and metamorphic reactions, magma formation and migration, rheology and dynamics of the mantle wedge, and generation of intermediate-depth seismicity. Characterizing the role of fluids and volatiles has been a key component of international and collaborative subduction zone research projects, that include the Seismogenic Zone Experiment (SEIZE) and Subduction Factory (Subfac) initiatives of the NSF MARGINS program, the Japanese IFREE program, the German SFB574 collaborative research center and the Russian-German KALMAR collaborative project, with focus sites at Nankai, Central America, Central Chile, Kamchatka, and Izu-Bonin-Marianas. These efforts have led to unprecedented advances in our understanding of the role of fluids in the formation and maintenance of the seismogenic zone and the connection between the inputs and outputs of the subduction factory. In-situ observations of fluids in subduction zones remains difficult, but the additional use of indirect observations coupled with integrated experimental and theoretical work has allowed for significant progress. This session will further the synthesis of observational, theoretical and experimental research on the role of fluids in subduction zones. This session is intended to bring together researchers from various fields with interests that cut across traditional discipline boundaries. We invite contributions from a wide range of disciplines including geodesy, ocean drilling, hydrology, volcanology, seismology, petrology, geodynamics, and geochemistry. ============================================================== 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. ==============================================================
