Caratterizzazione minero-petrografica e geochimica di giacimenti a solfuri massivi delle Liguridi Interne

This work provides a detailed minero-petrographic and geochemical study of three Volcanogenic Massive Sulfide (VMS) deposits (M. Bardeneto, Reppia and Libiola) from the Internal Ligurides of the Northern Apennine ophiolites (Liguria, Italy). The studied deposits include both mafic and ultramafic-hosted types and were formed in a setting transitional between an ocean-continent transition and a mature ocean. Field samples from these deposits have been studied by classical minero-petrographic techniques and by complete geochemical analysis. The new geochemical data will be compared with the abundant data on present-day ocean seafloor massive sulfide deposits by means of multivariate statistical analysis, in order to highlight similarities or differences in element associations and related hydrothermal processes and geological constraints between the Ligurian VMS and the present-day seafloor VMS.