SMR SIGNED

Project "SMR" data sheet

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 Project objective

During a seismic-geodynamic process, frictional heating and pressure are generated on sediments fragments resulting in deformation and alteration of minerals contained in them. The luminescence signal enclosed in minerals crystal lattice can be affected and even zeroed during such an event. This has been breakthrough in geochronological studies as it could be utilized as a chronometer for the previous seismic activity of a tectonically active area. Although the employment of luminescence dating has in some cases been successfully described, a comprehensive study outlining and defining protocols for routine luminescence dating applied to neotectonic studies has not been forthcoming. This is due to the fact that the required resetting mechanism of minerals luminescence signal under the influence of friction caused by the relative motion of a fault has been poorly investigated. The proposed project is the experimental investigation, recording and parameterization of the effects of tectonic phenomena on minerals luminescence signal and the development of detailed protocols for the standardization of the luminescence methodology for directly dating deformed geological formations, so that the long-term temporal behaviour of seismically active faults could be reasonably understood and modeled. This will be achieved by: a) identifying and proposing brittle fault zone materials suitable for luminescence dating using a multi-analytical approach which combines Petrological, Mineralogical and Chemical analyses, b) investigating the “zeroing” potential of the luminescence signal of minerals contained in fault zone materials by employing experimental simulations of tectonic processes in the laboratory, combined with luminescence measurements on samples collected from real fault zones (not subject to laboratory simulations). The proposed project will provide new tools for geo-hazards evaluations, adding to the efforts for “Securing societies” and contributing to EU sustainability.

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