A crustal section through intrusive and effusive volcanic complexes of the Tuscan Magmatic Province (central Italy).

The Tuscan Magmatic Province (TMP) is an outstanding natural laboratory for understanding geological and structural features related to the emplacement of plutonic and volcanic complexes, and to study dynamical and geochemical mechanisms acting during interaction between mantle derived and crustal melts. TMP is, in fact, constituted by a series of intrusive and extrusive centers scattered through southern Tuscany, the Tuscan archipelago, and northern Latium, in which several types of magmas coexist. These include crustal anatectic acidic peraluminous rhyolites and granites, and a wide range of mafic to intermediate magmas, including high- potassium calcalkaline, shoshonitic, potassic and ultrapotassic lamproitic rocks. The aim of the field trip is to provide a crustal section of the Tuscan Magmatic Province from Miocene to Pleistocene. It will be focused on: i) magmatic structures in granitoids that are among the youngest intrusive rocks on Earth (<7Ma); ii) shallow level felsic intrusions representing an spectacular example of multilayer laccolith complex; iii) occurrence of intrusive and effusive rocks of similar composition and age; iv) occurrence of cordierite-bearing rocks both in intrusive and effusive environment; v) occurrence of impressive evidence of magma mixing/ mingling in granitoids and volcanics rocks; vi) field studies of compositional diversity of magmatism versus source rocks; vii) field discussions on crustal melting and origin of silicic melts. The variability of mantle- derived and crust-derived magmas coexisting in space and time in the Tuscan Magmatic Province will provide, in addition, the basis for deep discussions about possible end-members involved in the interaction processes, also in relationship with the evolving geodynamic setting of the region from Miocene to Recent. The Tuscan Magmatic Province is also known for ore deposits that have been exploited for three millennia, and contributed to focus civilisation in this part of the Mediterranean Sea since Etruscan times. The field trip is organized starting with an excursion on the pluton and the laccoliths of Elba Island, continuing with granitoid masses constituting the Islands of Montecristo and Giglio, and then focusing the final part of the field trip on volcanic rocks cropping out in the area of San Vincenzo and Roccastrada.