********************************************************* From: Rosanna Smith <rosanna.smith@xxxxxxxxx> ********************************************************* Dear all, We would like to invite contributions to the session described below for the AGU Fall meeting in San Francisco on 10-14th December 2007. Abstract submission is now open at http://submissions3.agu.org/submission/entrance.asp until the deadline on 6th September 2007. Session V07: Magma fracture in lava domes and conduits http://www.agu.org/meetings/fm07/?content=search <http://www.agu.org/meetings/fm07/?content=search&show=detail&sessid=101> Sponsor: Volcanology, Geochemistry and Petrology Co Sponsors: Mineral and Rock Physics Near Surface Geophysics Description: The fracture of silicic magma plays a key role in controlling conduit dynamics, eruption styles and the growth, deformation and stability of lava domes. In this session, we hope to draw together field observations and measurements, laboratory experiments, and modeling studies to improve understanding of how fracturing influences conduit processes and lava dome emplacement. Submissions may include models of conduit dynamics and lava dome growth that consider the effects of strain localisation and fracturing. Studies linking geophysical data such as seismicity and edifice deformation to magma fracture are also welcome, as are analyses of the geological signature of fracturing in silicic magma, such as gouge zones and tuffisite veins. We also encourage presentation of experimental work that addresses the fracture mechanics and fragmentation of magma, particularly at temperatures close to the brittle ductile transition. Conveners: Rosanna Smith, Department of Earth Sceinces, UCL, Gower Street, London, WC1E 6BT, UK. <mailto:rosanna.smith@xxxxxxxxx> rosanna.smith@xxxxxxxxx John S. Pallister, USGS Cascades Volcano Observatory, 1300 SE Cardinal Court, Suite 100, Vancouver, WA, USA, 98683 Peter R. Sammonds Department of Earth Sceinces, UCL, Gower Street, London, WC1E 6BT, UK. ============================================================== 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. ==============================================================
