Alpine tectono-metamorphic framework of the Tuscan Paleozoic (Southern Tuscany, Italy).

The Hercynian Paleozoic rocks of the Northern Apennines were strongly involved, as the overlying Triassic-Tertiary "cover', in the Alpine tectono-metamorphic events. Three main deformation events (D1 , D2 and D3), the first two syn-metamorphic (Greenschist facies), are distinguished. Two different structural domains (the shallow Domain I and the deeper Domain II), previously defined in the Larderello and Amiata Mt. subsurface, are here extended to the other Paleozoic outcrops of Southern Tuscany. The Alpine tectono-metamorphic framework of the studied paleozoic formations is compared wth the similar one defined for other epimetamorphic sequences of Tuscany. -from Authors