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Postdoctoral Research Position in Clermont-Ferrand - ClerVolc
From: Thierry Menand <
t.menand@xxxxxxx>
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Clermont-Ferrand Centre for
Volcano Research
Seeking
a world-class post-doctoral research fellow in
the field of magmatic systems
We are seeking a candidate for a
post-doctoral project investigating the
mechanics governing the growth, evolution and
eruption of large silicic magma bodies (http://clervolc.univ-bpclermont.fr).
Volcano observatories monitor
volcanoes for signals that might
indicate a forthcoming eruption.
However, this requires accurate
knowledge of the subsurface processes
causing the signals observed and
recorded at the surface. Ground-surface
displacement measurements are a common
volcano-monitoring tool, but the links
between surface displacements and
eruption remain enigmatic, and the
ability to distinguish signals that will
precede an eruption from those which
will not is lacking. Much progress has
been made in the interpretation of
volcanic geodetic signals over the last
decade. The use of Finite Element
Analysis (FEA) allows for more realistic
models that incorporate viscoelastic
effects, which in turn strongly
influence whether a magma reservoir
tends towards eruption or continued
magma storage, through viscous
accommodation of the growing reservoir
in the host-rock. To date models have
relied on steady-state temperature
distributions to assign the viscosity
distribution within the crust a priori. In
reality, the subsurface temperature
distribution is a function of the crust
intrusive history, hence of both time
and space. Consequently, the mechanical
properties of the host-rock will also be
altered, and this will have important
impacts on the eruption or storage
potential of a magma reservoir as well
as the spatial and temporal distribution
of associated surface deformation. The
goal of the project is a model framework
that accounts for time-dependent thermal
and mechanical properties resulting from
repeated magmatic intrusions. This will
allow for better quantification of the
links between magma supply, surface
displacements and eruption potential,
and improved constraints on geodetic
eruption precursors.
Applicants
must hold a PhD degree in Volcanology
or closely related fields and should
have a strong background in continuum mechanics and numerical
modelling applied to earth-science
problems. Experience with COMSOL
Multiphysics would also be
appreciated.
Applicants
are requested to send a CV, a letter
of motivation, the names of two
referees, and the pdfs of up to five
publications to the ClerVolc
administration manager, Socheata Sean
(Socheata.SEAN@xxxxxxxxxxxxxxxxxx).
Applications will be accepted until 15 November 2015.
Applicants
do not need to speak French.
The ClerVolc (Clermont-Ferrand Centre for Volcano
Research) consortium involves six laboratories of Blaise Pascal
University in Clermont-Ferrand, France (Collaboratrices of Earth Science
‘Magmas et Volcans’, Particle Physics, Physical Meteorology, Social and
Cognitive Psychology, Mathematics, Computer Science), the Observatoire
de Physique du Globe at Clermont-Ferrand, and the French Geological
Survey (BRGM). The consortium, which is led by P. Schiano director, T.
Druitt scientific coordinator, has received funding for a collaborative
research programme from the French government ‘Laboratories of
Excellence’ initiative. The programme addresses fundamental questions in
the field of magma generation, volcano dynamics, volcanic hazards and
volcanic risk.
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