The article briefly describes the geological structure of the zonal Beloretsk metamorphic complex; listed suites, which includes carbonaceous deposits, is given all available data sampling of carbonaceous deposits of gold. Based on the thermal method of studying the carbonaceous shales of zigazin-komarov suite established that the exothermic effect in them occurs in the temperature range 630-730 °C, which corresponds to the greenschist and epidote-amphibolite facies of metamorphism. Mapping the temperature distribution within the Beloretsk metamorphic complex, as well as the analysis of patterns of gold-ore objects within it, allowed to bind gold mineralization to a specific temperature interval. This gave the possibility with minimal cost to assess the prospects for carbonaceous deposits of the Beloretsk metamorphic complex on the gold and select a specific area on it prospecting. It is shown that the largest gold mineralizations are confined to tectonically intensively destructed, silicified and sulfidation rocks of black-shale formation, located in an external high-temperature zone of the greenschist facies of metamorphism. The established regularity is very important search value in the further prospecting work on the periphery of the Beloretsk metamorphic dome and confirms correctness of the model of metamorphic-hydrothermal gold mineralization in black-shale strata. In such geological setting was discovered Otnurok gold mineralization in which by test of carbonaceous deposits was identified a layer of ore-bearing rocks with the thickness of six meters. This gold bearing zone is traced in a north-easterly direction for several kilometres along strike in a series of high-grade metal contents, which allowed to calculate probable resources of gold on P 2 categories.