[Geoqus] EGU 2016 Session TS8.4: Variation of crustal stresses in space and time

[Oliver Heidbach]

Dear colleague,

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:

*Variation of crustal stresses in space and time (TS8.4)*

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.

_Invited Talks:_ Thierry Camelbeeck (Royal Observatory of Belgium) and
                        David Coblentz (Los Alamos National Laboratory)

_Abstract deadline:_ *13 January 2016* 13:00 CET

_Abstract submission:_ 
http://meetingorganizer.copernicus.org/EGU2016/session/22035

_Description:_
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.

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.

We hope to see you in Vienna next year!

Best wishes,
Oliver Heidbach, Francois Cornet, Mark Tingay and Karsten Reiter




  
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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: heidbach at gfz-potsdam.de
web:    http://www.gfz-potsdam.de
         http://www.world-stress-map.org
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