The non-ferrous and noble metals deposits’ position and manifestation in North Ossetia-Alania regarding the anomalies of potential fields

Abstract

The relevance is determined by the need to create a scientific basis for the reassessment of known ore regions for the presence of highly liquid gold ores and the search for the new gold ore objects in previously unexplored territories to diversify the mining and metallurgical industries of North Ossetia (Alania). The purpose is to reveal the geophysical signs of non-ferrous and noble metals’ mineralization and potential gold content of ore-magmatic systems. The applied methods include the results analysis of the geophysical data use when performing the work within the prospective gold territories’ limits. A combined map construction of the gravitational and magnetic fields’ local anomalies based on the analysis of amplitude characteristics using a geophysical database of the Geological map of the Russian Federation on a scale of 1: 1,000,000 according to the sheet K-38.39 (Makhachkala) as well as the analysis of the spatial distribution of deposits and the manifestations of non-ferrous and noble metals relative to geophysical anomalies. The results obtained can be formulated as follows: the experience of using geophysical data when performing the work within the limits of the gold prospective territories in the Amur region is analyzed. The results of processing the data of the geophysical surveys results in the mountainous part of the North Ossetia (Alania) territory using modern methods for converting the potential fields are presented. The compiled maps of the gravitational and magnetic field’s local anomalies have been prepared. Within North Ossetia (Alania), spatial features of the deposits and ore occurrences of non-ferrous and noble metals with respect to anomalies of the gravitational and magnetic fields have been revealed. The confinement of the granitoid type ore-magmatic systems to negative anomalies of gravity has been established. It has been shown that potentially auriferous ore-magmatic systems are located within the limits of positive magnetic field anomalies.