For citations:

Kanygina N.A., Tretyakov A.A., Degtyarev K., Kovalchuk E.V. PROVENANCE AREA OF PRECAMBRIAN QUARTZITE-SCHIST SEQUENCES OF THE KOKCHETAV MASSIF (NORTH KAZAKHSTAN). Proceedings of higher educational establishments. Geology and Exploration. 2017;(5):27-39. (In Russ.) https://doi.org/10.32454/0016-7762-2017-5-27-39