***************************************************************************** Fall AGU Session: Breaking the Container: The Role of Solid Rock Surrounding Volcanic Systems ***************************************************************************** From: Diana C. Roman <droman@xxxxxxxxxxx> Dear Colleagues, We welcome your contributions to the following Fall AGU session. The abstract deadline is September 7. V18: Breaking the Container: The Role of Solid Rock Surrounding Volcanic Systems Before an eruption can occur, the solid rock surrounding a magmatic system must be broken to provide a pathway to the surface. As a result, the physical properties and stress state of the host rock play a significant role in determining the likelihood and timing of eruptions, as well as the structure of emplaced magma bodies. Conversely, changes in the state of the host rock (e.g., changes in stress magnitude or orientation, changes in the extent of fault slip or brittle failure) reflect processes occurring within the magmatic system and at the magma-rock interface. Indications of rock failure (e.g., high frequency seismicity) or changes in the stress state of the solid rock may be measured, providing a basis for forecasts of the likelihood and timing of eruptions. Overall, a thorough understanding of how magma interacts with its host rock will clarify the conditions that lead to the formation of magmatic conduits and will identify physical controls on magma ascent and eruption. This session aims to synthesize new insights and observations on the relations between processes within magmatic systems and changes in the state of the surrounding host rock, as well as on the influence of the host rock on the structure of the magmatic system and the likelihood and timing of eruption. We invite in particular theoretical studies of the physical mechanisms driving failure of the rock around an active magmatic system, observational studies of systematic patterns of mechanical failure at active volcanoes (e.g., microearthquake studies, studies of stress change, studies of volcano-fault interactions, analog experimental studies), and presentations of new approaches to eruption forecasting based on quantifiable observations of changes in the state of rock surrounding magmatic systems. Conveners: Diana C. Roman University of South Florida 4202 E. Fowler Avenue SCA 528 Tampa, FL, USA 33620 1 (813) 974-2236 droman@xxxxxxxxxxx Christopher Kilburn University College London UCL Benfield Hazard Research Centre, Department of Earth Sciences, Gower Street London, GBR WC1E 6BT +44 (0)20 7679 7194 c.kilburn@xxxxxxxxx ============================================================== 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. ==============================================================
