Superimposed brittle structures in the late-orogenic extension of the Northern Apennine: results from the Carrara area (Alpi Apuane, NW Tuscany) |
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| Authors: | G Ottria & G Molli |
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| Institution: | CNR (Centro di Studio per la Geologia Strutturale e Dinamica dell'Appennino), Italy,;Dipartimento di Scienze della Terra and CNR, Via S. Maria, 53, 56126–Pisa, Italy |
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| Abstract: | This paper presents data on the geometric and kinematic features of brittle faults in the Carrara area (Alpi Apuane, NW Tuscany, Italy), providing the first paleostress determination in a key region of the Northern Apennine. Meso-and microfault analyses point out the presence of brittle structures formed during a polyphase deformation and characterized by an older stage (DS1), with an interfering system of strike slip and normal faulting, followed by the DS2 stage developing normal faults locally showing apenninic trend (NW/SE). As a whole, the brittle structures are related to the late Pliocene–middle Pleistocene evolution of the Thyrrenian side of the Northern Apennine. |
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