Metamorphic

Rock type: 
Age: 
340 millions years

Russia, Caucasus, Karachay-Cherkess Republic, Khasaut River Valley. Apoharzburgite serpentinites. Apophysis of serpentinite massif. Lower Carboniferous, Mississippian?

Rock type: 
Age: 
1000 millions years

Russia, Caucasus, Karachay-Cherkess Republic, Mushta river valley. Migmatized and hornfelsed quartz-biotite, quartz-biotite-chlorite schists. Khasautskaya metamorphic series. Neoproterozoic.

Rock type: 
Age: 
1000 millions years

Russia, Caucasus, Karachay-Cherkess Republic, Mushta river valley. Migmatized and hornfelsed quartz-biotite, quartz-biotite-chlorite schists. Khasautskaya metamorphic series. Neoproterozoic.

Rock type: 
Age: 
1000 millions years

Russia, Caucasus, Karachay-Cherkess Republic, Mushta river valley. Migmatized and hornfelsed quartz-biotite, quartz-biotite-chlorite schists. Khasautskaya metamorphic series. Neoproterozoic.

Rock type: 
Age: 
438 millions years

Russia, Caucasus, Karachay-Cherkess Republic, Khasaut River Valley. Gray, lilac-gray quartzites and arkose sandstones. Silurian. Llandovery (?)

In the first photo, in the background (distant cliffs) -  Light gray quartz and polymictic sandstones, with mudstones, siltstones and interbeds of coal. Fossil: Velopecten rollei Tate, Lima punctata Sow., Circostylus euomphalus Quenst., Leda (Dacryomya) cf. graphica Tate, Astarte subtetragona Minst., Parallelodon aff. similis Terq., Hinnites sp. ind. (cf. davoei  Dam),  Nucula cf. palmae Sow. Lower Jurassic. Pliensbachian.

Rock type: 
Age: 
438 millions years

Russia, Caucasus, Karachay-Cherkess Republic, Khasaut River Valley. Gray, lilac-gray quartzites and arkose sandstones. Silurian. Llandovery (?)

Rock type: 
Age: 
2400 millions years

Russia, Caucasus, Karachay-Cherkess Republic, Dombai. Complex of quartz-biotite, quartz-chlorite gneisses and schists. Archean (?).

Rock type: 
Age: 
2400 millions years

Russia, Karachay-Cherkess Republic, Dombai. Complex of quartz-biotite, quartz-chlorite gneisses and schists. Archean (?).

Rock type: 
Age: 
1000 millions years

Russia, Karachay-Cherkess Republic, Arkhyz. Quartz-chlorite-muscovite, quartz-muscovite, quartz schists, paragneisses. Makerskaya series. Proterozoic. Mesoproterozoic- Neoproterozoic.

Rock type: 
Age: 
1000 millions years

Russia, Karachay-Cherkess Republic, Arkhyz. Quartz-chlorite-muscovite, quartz-muscovite, quartz schists, paragneisses. Makerskaya series. Proterozoic. Mesoproterozoic- Neoproterozoic.