Descrizione del progetto
Verso una migliore comprensione in merito alla geodinamica del Mediterraneo centrale
I margini delle placche sono sensibili a terremoti, tsunami ed eruzioni vulcaniche. Contribuendo alla nostra comprensione in merito a tali fenomeni, il progetto GEOMED, finanziato dall’UE, approfondirà la questione dell’evoluzione dei margini delle placche nel caso in cui molteplici processi tettonici interagiscano in un’area di piccole dimensioni. A tal fine, GEOMED studierà l’arco calabriano prestando particolare attenzione alla zona di frattura del canale di Sicilia, che si estende per più di 600 km di lunghezza dal largo della costa meridionale della Sardegna alla parte sud-orientale di Malta. I risultati dello studio, che sarà integrato in un modello regionale analogico, consentiranno al progetto di caratterizzare dettagliatamente l’evoluzione dei margini delle placche nei sistemi di retroarco, nonché di fornire altre informazioni in merito.
Obiettivo
The objective of this research proposal is to understand the evolution of plate margins when multiple tectonic processes (e.g. plate convergence, subduction, and backarc extension) interact within a small area (e.g. the Calabrian arc in the Central Mediterranean). These margins are prone to catastrophic earthquakes, tsunami and volcanic eruptions, and are all linked to long-term dynamic tectonic processes. Various models explain the evolution of these plate margins, however, lack detail on the extension and rifting that takes place along the arcs. The earthquakes in these areas have a strong dependence on their location along the arc, and hence in any effort aimed at mitigating seismic risk, it is crucial to have a complete understanding of how plate tectonics work when multiple tectonic processes act.
We propose a multidisciplinary geophysical and geodynamic investigation of seismic data with additional physical constraints and analogue modelling to improve our understanding on this important aspect of plate tectonics. This will be accomplished by studying the Calabrian Arc, with a special attention on the Sicily Channel Rift Zone. We will incorporate the results into a regional analogue model to understand the nature and role of these processes, which can then be exported for studying other regions. This will allow us to characterise the evolution of plate margins along backarc systems in unprecedented detail, and to investigate the link between plate convergence, subduction, and backarc extension with the tectonics along and at the front of the arc, thus providing a new insight on the evolution of our planet.
The study will ultimately contribute to the mitigation of seismic risk by improving the seismic hazard assessment of the countries affected. Some of these places are highly inhabited areas, home to millions of citizens, a destination to millions of tourists, and have strong commercial activity off shore.
Campo scientifico
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Programma(i)
Argomento(i)
Meccanismo di finanziamento
MSCA-IF-EF-ST - Standard EFCoordinatore
00154 Roma
Italia