The association of uranium, vanadium and organic matter in the copper deposits in Weissliegend sandstones (Fore-Sudetic monocline, Poland)

Two vanadium minerals, montroseite and roscoelite, occur in thucholite- and coffinite-bearingcopper ores in the Weissliegend sandstones (Polkowice mine near Lubin) the Fore-Sudetic monocline.These minerals occur with organic matter that is characterized by a high degree of structural ordering andthat forms shapeless accumulations metasomatically replacing quartz grains. The organic matter thatcontrols this paragenesis is associated with thucholite. The vanadium and uranium mineralization in thesesandstones shows similarities to the sandstone-bearing U-V deposits of the Colorado Plateau (USA).