A Middle Miocene-Middle Pleistocene regional NW-SE left-lateral strike-slip fault system profoundly conditioned the evolutionof central Calabria, during the late tectonic phases which involved the Apulian block and the Calabrian Arc. This system dissectedan Oligocene-Early Miocene orogenic belt, made of Alpine nappes overthrusted the Apennine Chain.In the present study, three major faults, arranged in a right-hand en ´echelon pattern, have been identified within the mentionedstrike-slip system: the Falconara-Carpanzano Fault, the Amantea-Gimigliano Fault, and the Lamezia-Catanzaro Fault. A wideactive transtensional area (N-S-trending Crati Graben), developed since Late Pliocene, is located at the SE termination of theFalconara-Carpanzano Fault.In the sectors of overlapping of the faults, the transpressional regime induced tectonic extrusions of the deep-seated units of theChain, producing push-ups within the overlying complexes. In particular, push-ups are either made of Mesozoic carbonate rocks atMt. Cocuzzo–Mt. Guono and Mt. S. Lucerna, or of ophiolite rocks at Mt. Reventino and Gimigliano. In these sectors, the primarygeometric relationships among the units of the orogenic belt were locally altered.The en ´echelon arrangement of the above-mentionedNW-SE major strike-slip faults indicates the existence of a left-lateral crustalshear zone, striking on average N160. The age of the regionalNW-SE left-lateral strike-slip system deserves thorough investigation.Besides evidence from historical and instrumental earthquakes, and from paleoseismological investigations, the kinematic datasuggests that the “cause” of the transtensional sector (Crati Graben) could be found in the regional Falconara-Carpanzano Fault.
Neogene-Quaternary strike-slip tectonics in the central Calabrian Arc (Southern Italy) / Tansi, C; Muto, Francesco; Critelli, Salvatore; Iovine, G.. - In: JOURNAL OF GEODYNAMICS. - ISSN 0264-3707. - 43(2007), pp. 393-414.
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|Titolo:||Neogene-Quaternary strike-slip tectonics in the central Calabrian Arc (Southern Italy)|
|Data di pubblicazione:||2007|
|Citazione:||Neogene-Quaternary strike-slip tectonics in the central Calabrian Arc (Southern Italy) / Tansi, C; Muto, Francesco; Critelli, Salvatore; Iovine, G.. - In: JOURNAL OF GEODYNAMICS. - ISSN 0264-3707. - 43(2007), pp. 393-414.|
|Appare nelle tipologie:||1.1 Articolo in rivista|