The varicoloured slates of the Grassera unit (central-eastern Elba, Tuscany): petrographical-mineralogical data and comparisons with other tuscan and ligurian-piedmontese units
Pandeli Enrico et al., The varicoloured slates of the Grassera unit (central-eastern Elba, Tuscany): petrographical-mineralogical data and comparisons with other tuscan and ligurian-piedmontese units, Ofioliti (Bologna) Bollettino del gruppo di lavoro sulle ofioliti mediterranee , 26(2A), 2001, pp. 197-205