Survey of Finland Bulletin 314 On the granitic pegmatites of the Eräjärvi area in Orivesi, southern...southern Finland b y Seppo I . Lahti Geologinen tutkimusla itos Espoo 1981 Geological Survey of Finland,...GRANITIC PEGMATITES OF THE ERAJARVI AREA IN ORIVESI, SOUTHERN FINLAND by SE P PO 1. L A H TI with 23 figures...pegmatites of the Eräjärvi area in Orivesi, southern Finland. GeoLogicaL Survey of FinLand, BuLLetin 314...appendices. The pegmatites of the Eräjärvi area (Orivesi, Finland) are middle Proterozoic granitic dyke |