The 1:25.000 scale geological map of the central area of Catena Costiera is aimed to provide a picture of the tectonic setting of the metamorphic units belonging to the alpine collisional belt of the Northern Calabria, Italy. The exposed successions of the study area have been investigated by structural analyses, petrographical, petrological and geochemical studies whose results are summarized in the geological map. In this area, two HP-LT metamorphic, oceanic-derived units, referred as the Mongrassano and Cozzo Cervello units, have been distinguished on the base of their stratigraphic and tectono-metamorphic evolution. Both the oceanic-derived units show a polyphase deformation history developed under retrograde metamorphism regarded as achieved in a subduction zone by underplating and exhumation into an accertionary wedge. These units are thrust by continental-derived units, referred as the Sila and Castagna units, consisting of medium and high-grade metamorphic rocks. Whereas the Castagna unit display an alpine HP/LT metamorphic overprint, the Sila unit escaped any subduction-related metamorphism.

Geology map of the central area of Catena Costiera: insights into the tectono-metamorphic evolution of the Alpine belt in Northern Calabria

PANDOLFI, LUCA;MARRONI, MICHELE;
2015-01-01

Abstract

The 1:25.000 scale geological map of the central area of Catena Costiera is aimed to provide a picture of the tectonic setting of the metamorphic units belonging to the alpine collisional belt of the Northern Calabria, Italy. The exposed successions of the study area have been investigated by structural analyses, petrographical, petrological and geochemical studies whose results are summarized in the geological map. In this area, two HP-LT metamorphic, oceanic-derived units, referred as the Mongrassano and Cozzo Cervello units, have been distinguished on the base of their stratigraphic and tectono-metamorphic evolution. Both the oceanic-derived units show a polyphase deformation history developed under retrograde metamorphism regarded as achieved in a subduction zone by underplating and exhumation into an accertionary wedge. These units are thrust by continental-derived units, referred as the Sila and Castagna units, consisting of medium and high-grade metamorphic rocks. Whereas the Castagna unit display an alpine HP/LT metamorphic overprint, the Sila unit escaped any subduction-related metamorphism.
2015
Filice, Francesco; Liberi, Francesca; Cirillo, Daniele; Pandolfi, Luca; Marroni, Michele; Piluso, Eugenio
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/777767
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