Major Oligocene lead-zinc mineralization in the Central Rhodopes occurs in four ore fields: Madan, Laki, Davidkovo (South Bulgaria) and Thermes (Greece). Madan ore field is situated in southwest part of the Central Rhodope Dome. Thirty-nine lead–zinc deposits were mined within the Madan field. Madan ore field occurs as an area of the most considerable deposition of Pb-Zn ores in the… Continue reading Madan Ore Field, Geological Map and Information