Abstract
Some well known seismic reflectivity patterns of continental crusts characterize specific tectonic terranes. The role of fluids in enhancing or destroying such structures is studied. Seismicity is strongly dependent on the different pore pressure of fluids. In intraplate settings, in strike slip or extensional areas hydrostatic pore pressure seems to be approached, in accordance with standard rheological models and standard seismicity-depth distributions. In suture zones or zones of developing loads, possibly also along zones of near-horizontal normal faults, extremely high pore pressure develops which approaches lithostatic values. They are accompanied by a number of weakening processes with enhanced shear and reduced viscosity (η). These values correlate with low seismic velocities V p in accordance with an empirical V p-η relationship.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
