AGU session, V038
From: Guilherme Gualda <guigualda@xxxxxxxxx>
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Dear Colleagues,
We would like to call your attention to the session we are organizing for
the Fall AGU meeting, focusing on the importance of phase equilibria to the
evolution of silicic systems:
“V038: Quartz, Two Feldspars, and a Fluid Phase: Phase Equilibrium and
the Origin, Evolution and Eruptive Dynamics of Silicic Magmas” (see
description below, or online at: http://tinyurl.com/btqgntb)
We hope to attract people with diverse backgrounds and approaches (e.g.
experimental, computational, field-based) that can highlight the interplay
between phase equilibria and silicic magma evolution.
Please consider submitting to the session. And don't hesitate to let us
know if you have any questions. The deadline for submission is next Wednesday,
Aug 8, 23:59 US Eastern time (to submit, go to: http://agu-fm12.abstractcentral.com/).
Best,
Guil Gualda and Mark Ghiorso
V038: Quartz, Two Feldspars, and a Fluid Phase: Phase Equilibrium and the
Origin, Evolution and Eruptive Dynamics of Silicic Magmas
"The chemical properties and physical state of silica-rich magma bodies are
strongly influenced by the near invariant (or eutectoid) character of these
systems. Critical magma properties such as viscosity, density and
compressibility change dramatically after saturation in quartz, two feldspars
and a fluid phase. Analysis of natural materials, experimental data, and
numerical models shed light on the longevity, physical state, and eruptibility
of silica-rich magmas. This session will bring together field observers,
experimentalists and modelers to explore the critical connection between phase
relations, magmatic evolution and the eruptive potential of silicic
magmas."
Invited presenters:
Becky Lange, University of Michigan
Tom Sisson, USGS
Conveners:
Mark S Ghiorso, OFM Research, ghiorso@xxxxxxxxxxxxxxxx
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