*************************************************************************** From: John Smellie <JLSM@xxxxxxxxx> *************************************************************************** Dear Colleagues, we are writing to update you on the Special Session at the 2008 General Assembly of IAVCEI titled "Glaciovolcanism (session 3b)". Glaciovolcanism is defined as all types of volcano interactions with ice in all its forms (including snow and firn) and, by implication, any meltwater derived from that ice by volcanic heating. The session is one of five special IAVCEI sessions included under the general banner "Volcano-ice-water interaction" (http://www.jardvis.hi.is/page/I08-SYM3). We encourage you and your colleagues to consider submitting abstracts to the glaciovolcanism session. The IAVCEI General Assembly will be held in Reykjavik, Iceland, from 18 to 25 August. More information on the meeting generally can be obtained at http://www.jardvis.hi.is/page/I08-intro. The abstract deadline is 1 April 2008. Instructions for abstract submission can be found at http://www.jardvis.hi.is/page/I08-absub. We hope our session will showcase current glaciovolcanic research in all its guises. It is planned be as broad as possible within the field and we particularly encourage interdisciplinary contributions and radical ideas. Feel free to inform your colleagues who may be interested in submitting an abstract for session 3b, and whom we may not have contacted directly. We look forward to seeing you at IAVCEI. Best wishes from the convenors, John Smellie, Dave McGarvie, Magnus Gudmundsson and Jennie Gilbert. _______________________________________________________________ Session 3b: Glaciovolcanism Abstract submissions deadline: 1 April 2008. Conveners: J.L. Smellie, British Antarctic Survey, jlsm@xxxxxxxxx D.W. McGarvie, The Open University, d.mcgarvie@xxxxxxxxxx M.T. Gudmundsson, Institute of Earth Sciences, University of Iceland, mtg@xxxxxxxxxxxxx J.S. Gilbert, Lancaster University, j.s.gilbert@xxxxxxxxxxxxxxx Sponsoring Commission: Volcano - Ice Interactions Glaciovolcanism is distinct from subaqueous volcanism because of the various forms of interaction between ice and magma. Ice often confines the eruptive products and a proportion of the meltwater. Rapid heat transfer from magma to ice causes large scale melting leading to jokulhlaups and lahars that can be a major hazard in volcanic areas with ice-covered volcanoes. These various interactions between magma and ice result in added complexity and the opportunity for the construction of distinctive landforms. During past glacial periods many volcanic areas were heavily glaciated and interaction of magma and ice was much more widespread than at present. Glaciovolcanism typically provides the only physical record of the thickness of ancient land-based ice sheets. This session will focus on: - Glaciovolcanic landforms and the way in which these relate to the properties of magma and ice (e.g. magma rheology, eruption rate, ice hydrology, ice rheology and glacier dynamics). - Observations of volcano-ice interaction. - Hazards from glaciovolcanic eruptions. - The physics of glaciovolcanic eruptions: Experimental and theoretical investigations. - Links between glaciovolcanism and climate. - Studies of ancient glaciovolcanic products, diagnostic criteria for palaeoeruption environments. - Microbial activity in glaciovolcanic environments (e.g. subglacial lakes, alteration of glass). - Palaeoenvironmentally-diagnostic proxies in glaciovolcanic sequences (e.g. stable isotope studies; volatile contents). - Hydraulics of glaciovolcanic outburst floods. ________________________________________________________________________ ============================================================== 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. ==============================================================
