Brittle-viscous deformation cycles in the dry lower continental crust

• Main Authors: Menegon, Luca, PENNACCHIONI, GIORGIO
• Other Authors: Pennacchioni, Giorgio
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2015
• Subjects: pseudotachylyte; mylonite; earthquake; anorthosite; dry lower continental crust; Lofoten (Norway); Lofoten; Norway; Nusfjord; Northern Norway
• Online Access: http://hdl.handle.net/11577/3235361; http://meetingorganizer.copernicus.org/EGU2015/EGU2015-8946.pdf

Many rheological models of the lithosphere (based on “strength envelopes”) predict a weak aseismic lower crust below the strong brittle upper crust. An alternative view, based on the distribution of crustal seismicity, is that the lower crust could also be strong and seismic. It has been suggested t...