quartz-biotite schists

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: 
2000 millions years

Migmatized quartz-biotite schists. Srednegudzhal'skaya series. Thickness - 1200-1400 metres. Absolute definition of age - no. Fossil - no. Pr1gd2.