Fluids migration and dynamics of a blocks-and-faults system

We explore the impact of fluids migrating through a fault network on the dynamics of lithosphere, both on slow movements and seismicity. For that purpose fluids in the fault zones are incorporated into modelling of blocks-and-faults systems, which takes into account driving forces and the system...

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Bibliographic Details
Published in:Tectonophysics 2007-01, Vol.429 (3), p.229-251
Main Authors: Gabrielov, A.M., Keilis-Borok, V.I., Pinsky, V., Podvigina, O.M., Shapira, A., Zheligovsky, V.A.
Format: Article
Language:English
Subjects:
Fault network
Fluids migration
Lithosphere dynamics
Seismicity
Tectonic blocks
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Summary:We explore the impact of fluids migrating through a fault network on the dynamics of lithosphere, both on slow movements and seismicity. For that purpose fluids in the fault zones are incorporated into modelling of blocks-and-faults systems, which takes into account driving forces and the system's geometry. Simulations have been performed for two-dimensional models: an idealised “brick wall” structure, and a coarse image of Sinai Subplate. Migrating fluids originating in different locations are considered, as well as fluids trapped in closed pockets. Basic features of the modelled and observed seismicity are in good accord, as shown by comparison with the earthquake catalog compiled by Geophysical Institute of Israel.
ISSN:0040-1951
1879-3266
DOI:10.1016/j.tecto.2006.09.011