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From: Julie Roberge <roberge@xxxxxxxxxxxxxxxxx>
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Dear All
Last chance to submit your abstract to one of these two special sessions:
V09:
Towards Integrated Studies on Volatiles in Magmas: from the Mantle to the
Atmosphere
The session will focus on volatiles which are an essential concern of
volcanology. Understanding their behavior and influence on a wide variety
of geological phenomena is crucial. Processes of deep or shallow degassing
are important to identify processes and monitor/forecast changes in eruption
style (explosive to dome building), which in turn is essential for hazard
evaluation and risk assessment. Degassing at volcanoes is currently measured
by several remote sensing techniques including COSPEC, DOAS, FTIR and
satellite imagery (TOMS, MODIS, ASTER, etc.), and the techniques are
improving rapidly. On the other end, new analytical techniques to measure
pre-eruptive volatile content in volcanic rocks combined with laboratory
experiments on volatile solubility and thermodynamic modeling contribute to
advances in our understanding of volatile fluxes from magmatic systems.
Consequently, the goal of this session is to integrate information on
volatiles exsolution, movement, their role in fragmentation processes, and
injection into the atmosphere or oceans. It is also hoped that this session
will stimulate collaboration between the different fields of study
concerning volatiles in magmas.
AND
V05:
Processes and Hazards of Monogenetic Volcanoes: Are they what everyone
thinks they are?
Description:
Monogenetic volcanic fields consisting of cinder and scoria cones are common
in many places around the world. Small to large human settlements are
frequently built close to or on the products from these cones. The most
common interpretation about the eruptive style of these small cones is that
they are characterized by strombolian eruptions accompanied by lava flows.
In other words, the most common idea, from the hazards point of view, is
that these small cones are characterized by mild eruptive styles and
therefore the related hazards are relatively minor. However, the deposits
from these cones indicate a wide range of explosive behavior from weak
strombolian to subplinian. This session will address the real explosive
potential of this kind of volcanism, including the formation and
characteristics of magma in the deep source region, the processes during
ascent through the crust, the eruption of lava flows and explosive products,
and the likely range of hazards.
Remember: Abstracts submitted via the Online Submission Form must be
received no later than 1 March 2007 at 2359 UT (Universal Time).
Hope to see you in Acapulco!
Julie Roberge and Hugo Delgado
Julie Roberge
Laboratorio Universitario de Petrologia
Instituto de Geofisica, UNAM
Circuito Cientifico, C.U.
Coyoacan, 04510
Mexico, D.F.
Tel: 5255-5622-4225
roberge@xxxxxxxxxxxxxxxxx
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