Russia, Irkutsk region, valley of the Big Chanchik creek. Carbon-containing phyllite schists with carbonate (anchorite, calcite). Angarskaya series, upper pack. Mesoproterozoic.
Russia, Irkutsk region, valley of the Big Chanchik creek. Carbon-containing phyllite schists with pyrite lenses. Angarskaya series, upper pack. Mesoproterozoic.
