Dear Colleague,
as the submission deadline draws closer, we would like to draw your
attention to the session:
"Explosive activity at basaltic volcanoes"
to be held at the EGU 2007 meeting, , Vienna, Austria, 15-20 April, 2007.
Please find below more information on the session we propose.
Most sincerely yours,
Jacopo Taddeucci & Oliver Spieler
http://www.cosis.net/members/meetings/sessions/information.php?p_id=240&s_id=4227
Basaltic explosive activity differs from its more felsic counterpart for
several, specific aspects. From a physico-chemical point of view, for
instance, an extended range of ductile deformation and faster kinematics
of magma open the way to peculiar explosive processes, such as surface
bursting of buoyant gas slugs, annular gas flow, simultaneous effusive
and explosive activity, and multifarious interaction of magma with
external water. From an observational and monitoring point of view,
basaltic explosive activity is relatively accessible, and an important
challenge for the future is how multiparametric records from
well-observed basaltic explosions may provide a basis for volcanic
explosion theories that apply also to less accessible eruptions.
Finally, from an hazard-related point of view, specific hazards are
associated with low-intensity basaltic activity, with harmful events
like the fallout of ballistic ejecta, paroxysmal explosions, and violent
magma-water interaction that often, and unexpectedly, punctuate
relatively harmless and prolonged low-level Strombolian and lava flow
activity. Here we propose an interdisciplinary session to cover the
above (and possibly other) aspects proper of explosive activity at
basaltic volcanoes, with particular emphasis to works that integrate
different field, experimental, and analytical approaches as well as
novel technologies.
Jacopo Taddeucci
Istituto Nazionale di Geofisica e Vulcanologia
Dept. of Seismology and Tectonophysics
HP-HT Lab. of Experimental Volcanology and Geophysics
Via di Vigna Murata 605, 00143, Roma, Italy
Tel. +39-06-51-860-502, Fax. +39-06-51-860-507
http://www.ingv.it/%7eroma/profilo/fondazione/sezioni/romauno/LabHP-HT/index.html
http://web.genie.it/utenti/j/j.taddeucci/index.html
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