************************************************************ Volcanic sector collapse at IAVCEI Iceland Conference 18th to 25th August 2008 From: Benjamin van Wyk de Vries, Laboratoire Magmas et Volcans, OPGC, Clermont-Ferrand, FRANCE ************************************************************ I would like to invite contributions to a session about volcano sector collapse that is fully described below. We would like to draw a wide range of contributions for a good broad discussion on volcano sector collapse. Full information about the conference is found at: http://www.jardvis.hi.is/page/ We look forward to seeing you there. ……………………………………………………………………………………………… 2-k Volcanic sector collapse: Origin, transformation to debris flows and tsunami Conveners: B. van Wyk de Vries, Magma and Volcanoes Laboratory, Clermont Ferrand, b.vanwyk@xxxxxxxxxxxxxxxxxxxxxxx A. M. Lagmay, National Institute of Geological Sciences, Manilla, mlagmay@xxxxxxxxxxxxxxx J. Clavero, SERNAGEOMIN, Santiago, jclavero@xxxxxxxxxxxxxx L. Siebert, GVP, Smithsonian Institution, Washington, siebertl@xxxxxx Sector collapse is common at all types of volcano and is a major hazard. The origin and trigger of collapse is a growing field of study and more field data and physical models are becoming available. Collapse generally generates a rockslide-debris avalanche, which is also the subject of intense field study and modelling. Such events are important as they are highly destructive, and can spawn even more hazardous debris flows and tsunamis. In this session we wish to integrate discussion on studies starting before collapse origin, going though to the far- field effects. A broad mix of research from field studies and laboratory studies to modelling of collapse and associated effects is welcomed. This session will focus on: - The evidence: field and laboratory description of volcanoes, deposits and their significance, failure mechanics and transport processes - Volcano-tectonic interactions leading to slope failure - The role of the magmatic and hydrothermal system in developing failure - Mechanisms in the transformation from unstable slope to rockslide-avalanche - Mechanisms in the transformation from rockslide-avalanche to debris flow - Rockslide-avalanche and tsunami relationships - Numerical and analogue modelling of initiation, transport and transformation ============================================================== 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. ==============================================================
