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Dear colleague,<br>
<br>
we would like to invite you to submit an abstract to our session at
EGU 2016 (Vienna, Austria 17-22 April 2016) with the topic:<br>
<br>
<big><b>Variation of crustal stresses in space and time (TS8.4)</b></big><br>
<br>
The main goal of the session is to bring together researchers from
various geo-disciplines to contribute to a thorough understanding of
crustal stress sources, spatial stress variability, stress
variability during the seismic cycle and relation of observed strain
with crustal stresses, which leads to the observed complex stress
pattern.<br>
<br>
<u>Invited Talks:</u> Thierry Camelbeeck (Royal Observatory of
Belgium) and <br>
David Coblentz (Los Alamos National
Laboratory)<br>
<br>
<u>Abstract deadline:</u> <b>13 January 2016</b> 13:00 CET<br>
<br>
<u>Abstract submission:</u> <a class="moz-txt-link-freetext"
href="http://meetingorganizer.copernicus.org/EGU2016/session/22035">http://meetingorganizer.copernicus.org/EGU2016/session/22035</a><br>
<br>
<u>Description:</u><br>
The 3D stress state of Earth’s crust and its spatio-temporal changes
is of key importance for industrial applications (e.g. hydraulic
fracturing, borehole stability, induced seismicity) and scientific
questions (e.g. earthquake cycle, slip tendency analysis) likewise.
The amount of crustal stress information has increased substantially
in the past decade indicating a more complex stress pattern related
to regional/local variability due to crustal structures, fault
zones, earthquake cycles or man-made stress changes from production
or injection of fluids. 4D geomechanical-numerical models allow to
quantify the contribution of natural and anthropogenic processes,
rock properties, constitutive laws, inhomogeneities and
anisotropies. However, to constrain such models, stress data from
both, orientation and magnitude with a good spatial and time
resolution are essential.<br>
<br>
The main goal of the session is to bring together researchers from
various geo-disciplines to contribute to a thorough understanding of
crustal stress sources, stress variability during the seismic cycle
and relation of observed strain with crustal stresses which leads to
the observed complex stress pattern. The emphasis is on (1) stress
data analysis and description of the spatio-temporal evolution of
the stress field from geological and borehole data as well as
seismological studies of earthquake focal mechanism solution and
stress inversions, (2) application of stress information for
geo-reservoir characterization in terms of productivity and safety
aspects such as the re-activation of sealing faults and induced
seismicity and (3) stress/strain accumulation and release within the
seismic cycle and the role of Coulomb Failure Stress. Furthermore
the focus of this session is also on (4) the plate-scale crustal
stress pattern and its relation to mantle convection and the gravity
field, (5) hydro-thermal-geomechanical models which provide a better
process understanding and (6) the progress in paleo-stress
measurements.<br>
<br>
We hope to see you in Vienna next year!<br>
<br>
Best wishes,<br>
Oliver Heidbach, Francois Cornet, Mark Tingay and Karsten Reiter
<pre class="moz-signature" cols="72">
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Dr. Oliver Heidbach
Head of the World Stress Map Project
Helmholtz Centre Potsdam
GFZ German Research Centre for Geosciences
Section 2.6 Seismic Hazard and Stress Field
Telegrafenberg
14473 Potsdam
Germany
phone: +49(0)331 288-2814
fax: +49(0)331 288-1127
e-mail: <a class="moz-txt-link-abbreviated" href="mailto:heidbach@gfz-potsdam.de">heidbach@gfz-potsdam.de</a>
web: <a class="moz-txt-link-freetext" href="http://www.gfz-potsdam.de">http://www.gfz-potsdam.de</a>
<a class="moz-txt-link-freetext" href="http://www.world-stress-map.org">http://www.world-stress-map.org</a>
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