*********************************************************************** From: James White <james.white@xxxxxxxxxxxxxxxxxxxx> *********************************************************************** This note solicits contributions to a session, on explosive subaqueous eruptions, at the upcoming IAVCEI Reykjavik meeting. We're interested in anything that breaks up magma in water, so send us your studies of primary subaqueous volcaniclastic deposits and of the processes that form them. Sub-marine, sub-lacustrine, or in water under glaciers, we want to know how water is affecting your eruption! The session description at http://www.jardvis.hi.is/page/I08-SYM3 is: Conveners: J.D.L. White, University of Otago, Dunedin, New Zealand, james.white@xxxxxxxxxxx Sveinn Jacobsson, Icelandic Institute of Natural History, Reykjavik, Iceland, sjak@xxxxx W Chadwick, Oregon State University, Newport Oregon, USA, bill.chadwick@xxxxxxxx Kazuhiko Kano, Geological Survey of Japan, Tsukuba, Japan, kazu.kano@xxxxxxxxxx Explosive subaqueous volcanism occurs in marine, lacustrine and englacial settings, and the resulting deposits are of greater volume and economic significance than those of more intensely studied subaerial eruptions. Eruptions can involve any magma composition. Styles of eruption are incompletely understood, and many studies focus on identification of similarities with better-known subaerial eruption styles. This session aims to bring together research on modern subaqueous eruptions, emergent eruptions that represent the shallowest but only visible part of subaqueously initiated eruptions, and deposits of ancient subaqueous eruptions. Eruptions initiated beneath glaciers form their own bodies of water into which eruption continues, and their deposits exposed as a result of glacial retreat offer accessible study targets for many aspects of explosive subaqueous eruptions. This session will focus on: - Fragmentation processes in explosive submarine, subglacial and emergent eruptions - Geophysical and other observations of subaqueous to emergent eruptions - Dispersal characteristics of subaqueous eruptions - Processes of particle transport and deposition from subaqueous eruptions - Interpretation of heat-retention features in deposits of subaqueous eruptions - Role of steam in subaqueous plumes, currents, and deposits - Relationships of deposit mineralization to processes of subaqueous eruptions - Review papers integrating interpretation of deposit features with observed processes during eruptions are particularly welcomed Commissions: CEV, VII, CEV ________________________________________ James White, Associate Professor Sedimentology & Volcanology Geology Department, Leith Street, PO Box 56 University of Otago, Dunedin, NZ 9054 ph: +64 3 479-9009; fax +64 3 479-7527 http://www.otago.ac.nz/geology/jdlw.htm ============================================================== 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. ==============================================================
