The metamorphic complexes of the northwestern Bohemian Massif host several mineralization styles that span stratiform base-metal deposits, stratabound skarn mineralization as well as low-temperature hydrothermal veins.
During the second trip in 2012, our chapter visited several examples of these mineralization styles, exposed mainly in historical mines.
–The Mědník deposit near the village Měděnec: calcic-ferroan skarn with stratabound sulfide mineralization, produced silver, copper and iron since medieval times. We also visited a Země zaslíbená mine of this mineralization in Měděnec.
–Mýtinka location: about 4 km SW of Měděnec; a complicated fold structure containing migmatites, orthogneisses and mica schists intensely fractured and filled with quartz gangue. Quartz veins located at fault intersection are usually mineralized with hematite that formed from low-temperature hydrothermal fluids.
