Metamorphic

Russia, Irkutsk region, the upper reaches of the creek of Alexander Nevsky, gold deposit - "Nevskoe". Quartz sandstones with quartz and quartz-arbonatic veins. Fine grained. Cement - quartz-sericite, with carbonaceous matter. Aunakitskaya series. Host rocks for gold ore mineralization of the Nevskoye deposit. Paleoproterozoic.

Russia, Irkutsk region, Big Kadali river valley. Carbon quartz-mica schists. Khomolkhinskaya series. Thickness 650 meters. Paleoproterozoic.

Russia, Irkutsk region, Kadali river valley. Marbles of the Imnyakhskoy series. Light gray, greenish-bluish-gray, fine-grained. Granoblast structure, massive texture. Consist: calcite. Accessory: quartz, sericite, muscovite. Paleoproterozoic.

Russia, Caucasus, Karachay-Cherkess Republic, Khasaut River Valley. Sericite-chlorite schists. Khasautskaya metamorphic series. Neoproterozoic.

Russia, Caucasus, Kabardino-Balkarian Republic, mountain Cheget. Donguzorunskiy metamorphic complex. Mica gneisses, mica schists with andalusite, garnet. Thickness - 1280 meters. Proterozoic, mesoproterozoic.

Russia, Caucasus, Kabardino-Balkarian Republic, mountain Cheget. Donguzorunskiy metamorphic complex. Mica gneisses, mica schists with andalusite, garnet. Thickness - 1280 meters. Proterozoic, mesoproterozoic.

Russia, Caucasus, Kabardino-Balkarian Republic, Adyrsu River Gorge. Gondarayskiy metamorphic complex, verkhnebalkarsky metamorphic subcomplex. Muscovite, biotite, feldspathic, hornblende gneisses; chlorite-hornblende, quartz-hornblende, quartz-tremolite schists; migmatitized gneiss and schists, migmatitis. Sometimes quartzite. Fine-grained, medium-grained. Proterozoic, mesoproterozoic.

Russia, Caucasus, Kabardino-Balkarian Republic, Adyrsu River Gorge. Gondarayskiy metamorphic complex, verkhnebalkarsky metamorphic subcomplex. Muscovite, biotite, feldspathic, hornblende gneisses; chlorite-hornblende, quartz-hornblende, quartz-tremolite schists; migmatitized gneiss and schists, migmatitis. Sometimes quartzite. Fine-grained, medium-grained. Proterozoic, mesoproterozoic.

Russia, Caucasus, Kabardino-Balkarian Republic, Adyrsu River Gorge. Gondarayskiy metamorphic complex, verkhnebalkarsky metamorphic subcomplex. Muscovite, biotite, feldspathic, hornblende gneisses; chlorite-hornblende, quartz-hornblende, quartz-tremolite schists; migmatitized gneiss and schists, migmatitis. Sometimes quartzite. Fine-grained, medium-grained. Proterozoic, mesoproterozoic.

Cyprus, Lara Beach. Serpentinites. Age uncertain.