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Coupled thermo-hydro-mechanical processes in fault zones during rapid slip
| Content Provider | Semantic Scholar |
|---|---|
| Author | Navier, Cermes-Ur |
| Copyright Year | 2011 |
| Abstract | The physical processes which occur during an ear thquake exhibit several coupled phenomena as large variations of stress, pore pressure and tempe ratur take place in the slip zone. Thermo-poro-mec hanical couplings due to shear heating can be associated to phase transition such as vaporization of the pore fluid, melting of fault gouge and to chemical effects such as dehydration of minerals or decarbonation of cal cite. Different competing effects may influence dynamic s l p and affect the weakening of the shear stress. I n this paper, we show how thermal pressurization of the po r fluid and thermal decomposition of minerals indu ced by shear heating limit the co-seismic temperature r ise which may explain the lack of pronounced heat o utflow, and the lack of shallow frictional melting, along m ajor tectonic faults. ha l-0 05 62 45 7, v er si on 1 3 Fe b 20 11 Author manuscript, published in "Rock Mechanics in Civil and Environmental Engineering, EUROCK 2010, Lausanne : Switzerland (2010)" |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://hal-enpc.archives-ouvertes.fr/docs/00/56/24/57/PDF/Sulem-keynote-lecture-EUROCK2010-HAL.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
