TY JOUR TI Criteria for Predicting the Hydrocarbon Potential of Riphean-Vendian Deposits in the Mezen Syneclise KW Riphean and Vendian sediments KW Mezen-Belomor tectonic-sedimentary element KW oil and gas content forecast KW hydrocarbon resources KW marginal systems JO Russian Journal of Earth Sciences AU Peskov, D.V. AU Zharkov, A.M. AU Kalinin, D.F. PY 2025 IS 25 PB Geophysical Center of the Russian Academy of Sciences