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.
Bibliographical noteFunding Information:
The research was supported by the INTAS-RFBR grant IR-97-1914 (RFBR grant 97-05-71092). The study was also partly made possible by the US Civilian Research and Development Foundation for the Independent States in the Former Soviet Union (CRDF) grant RG2-2237. We acknowledge financial support from the grant EAR 9804859 of the National Science Foundation, USA. The authors are grateful to the referee Dr. T. Yamashita for his valuable comments, which were very useful for the improvement of the paper.
- Fault network
- Fluids migration
- Lithosphere dynamics
- Tectonic blocks
ASJC Scopus subject areas
- Earth-Surface Processes