A comprehensive study of the evolutionary history of the Marun-Keu complex in the Polar Urals is presented. Utilizing both original data and published earlier information, this work establishes the temperature and pressure ranges corresponding to the magmatic and metamorphic stages of rock evolution, as well as estimates the geothermal gradient and continental crust thickness. Thermobarometric calculations for the magmatic stage were performed using machine learning techniques, specifically the “random forest” algorithm, based on experimental datasets and require minimal petrochemical input regarding rock composition. The pressure-temperature (PT) conditions of the metamorphic stage were evaluated using the THERIAK-DOMINO software package. The host rocks of the eclogites are interpreted as products of partial melting of continental crust induced by interaction with heated basic-ultramafic melts. Peak metamorphic pressures for the eclogites are estimated not to have exceeded approximately 21 kbar, with corresponding temperatures ranging 730-750 °C. Subsequent retrograde metamorphism within the Marun-Keu eclogites was constrained to temperatures below 640 °C and pressures above 5 kbar. The geothermal gradient during protolith formation of the eclogites was calculated to be approximately 13 °C/km, consistent with contemporary estimates for continental crustal settings. Furthermore, the subduction parameters were inferred, yielding an estimated slab dip angle of 6-8°, and a subduction velocity between 2.2 and 2.9 cm/year, which does not contradict the hypothesis of continental subduction.