http://www.cnr.it/ontology/cnr/individuo/prodotto/ID273239
Evolution of large-scale gravitational deformations in tectonically-controlled mountain slopes (Abstract/Poster in atti di convegno)
- Type
- Label
- Evolution of large-scale gravitational deformations in tectonically-controlled mountain slopes (Abstract/Poster in atti di convegno) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Alternative label
BUCCI F., CARDINALI M., FIORUCCI F., GUZZETTI F., SANTANGELO M. (2013)
Evolution of large-scale gravitational deformations in tectonically-controlled mountain slopes
in 8th International conference (AIG) on Geomorphology, 2013, Parigi
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- BUCCI F., CARDINALI M., FIORUCCI F., GUZZETTI F., SANTANGELO M. (literal)
- Note
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- CNR IRPI, VIa della Madonna Alta 126, 06128 Perugia, Italy (literal)
- Titolo
- Evolution of large-scale gravitational deformations in tectonically-controlled mountain slopes (literal)
- Abstract
- Evidences of large-scale gravitational movements evolving close to Quaternary faults have been recognized in
the north eastern Sicily (south Italy) through the visual inspection of multi-scale and multi-temporal aerial
photographs. Geomorphological and photo-geological survey have defined the relationship between the
gravitational displacements and the tectonically-controlled landscape modifications conditioned by the presence
of fault planes crossing the mountain slopes. In most cases the faults played, or are playing, an active role in
increasing the local relief. Furthermore their activity represents the main geomorphic factor conditioning the
gravitational movements. These mass movements may have developed in response to the slope weakening
subsequent to multiple earthquake events, thus they occurred in the same time period of the Quaternary fault
activity. In other cases the faults have also played a passive role by forming the boundary of the sliding masses
and coincide with the slip surfaces. In both cases the evolution of the large-scale mass movements is
conditioned by the incision of the hydrographic network in response to regional Quaternary uplift. The related
erosion causes modifications of the slope morphology and the exhumation of weak discontinuities which may
lead to slope instability. The spatial association of Quaternary faulting and large-scale gravitational movements
greatly increases the hazard in fault-controlled mountain front landscapes. The evolution of tectonic displacement
by coseismic offset may represent a potential cause for the sudden and catastrophic evolution of the gravitational
movements. After their emplacement, the large-scale landslide bodies are deeply dismantled by the recent
morphogenesis, including recent and present-day landslides that can propagate without any evidence of tectonic
displacement and further increase the local landslide hazard. (literal)
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