The problem our own mineral resource base creation was considered relatively often since Ukraine became independent. However, this issue was never analyzed systematically. Besides, current investment demands during geological survey and ore processing scheme establishment were not taken into account. The purpose of the paper is estimating the available information on the prospectives of Prutivka complex sulphide copper-nickel ores deposit management and revealing the necessary steps to prepare the deposit to the development emphasizing its complexity. The paper analyzes the data of last 25 years published sources on the prospectives of Ukrainian territory ore content for colour and precious metals. It considers the potential platinum bearing and includes author’s experience and data. Lack and inconsistency of accessible information about the perspectiveness of Prutivka complex sulphide copper-nickel and precious metal ores deposit revealed. The need to change approaches to development and preparation of the deposit is proven. These approaches must be based on contemporary complex ore processing schemes taking into account modern investment demands. The final conclusions concerning the industrial importance and investment attractiveness of the Prutivka complex deposit can be done after the defined workflow based on the modern worldwide standards.
Introduction. The growing interest in the possibility of obtaining certain types of strategic (critical) metals has prompted the intensification of research in this area.
Problem Statement. Many research works have dealt with creating a mineral resource base of strategic (critical) metals. However, this issue has not been systematically considered, and no respective industrial strategy has been developed so far. Insufficient attention is paid to modern investment requirements, especially during exploration and selection of ore processing schemes.
Purpose. The purpose of this research is to assess the available information on the prospects for the development of the Prutivskyi deposit of sulfide copper-nickel and precious metal ores and to outline the priority steps in order to prepare the deposit for integrated development.
Materials and Methods. Information from open (published) sources for the last 25 years, which concerns the ore-bearing capacity of Ukraine for precious and non-ferrous metals, in particular the potential platinum-bearing capacity, has been critically analyzed, given the authors’ knowledge and experience.
Results. The authors have shown the insufficiency of the available information on the prospects of the Prutivskyi deposit of sulfide copper-nickel and precious metal ores and the inconsistency of some sources. At present, about 20% of ore-promising rocks of the Prutivka intrusive massif has been studied with varying level of detail.
The authors have proven the necessity of changing approaches to the field preparation and development that should be based on modern schemes for integrated ore processing, given world investment requirements.
Conclusions. It has been shown that the final conclusion on the industrial significance and investment attractiveness of the Prutivskyi deposit can be made only after the implementation of a clearly defined set of works in compliance with modern world standards.
Detailed geochemical and geochronological investigation of the abundant magmatism that occurred in the Ukrainian shield at 1800-1750 Ma and included Korosten and Korsun-Novomyrhorod anorthosite-mangerite-charnockite-granite complexes, Oktyabrsky and Pivdenny Kalchik alkaline massifs, Kamyany Mohily granite complex, and numerous dykes and layered intrusions of tholeiite, picrite and kimberlite compositions related to the Prutivka-Novogol large igneous province
The history of study and main results of exploration works on the Prutivske deposit have been covered. The prospects for nickel-bearing capacity of hyperbasite massifs in the northwest part of the Ukrainian Shield in view of the last results of searches of sulfide copper-nickel ore deposits in the Far East of Russia have been determined.
Manifestations of nickel mineralization in the north-western part of the Ukrainian Shield is briefly characterized. The Prutovka sulphide copper-nickel ore manifestation revealed recently in the framing of the Buki gabbro-diorite-granodiorite massif is characterized at greater length. Ore manifestation, presented by the chalcopyrite-pentlandite-pyrrhotite association is spatially and paragenetically related to the gabbro-dolerite intrusion. Mineralization formation is explained by deep segregation and distribution of sulphide melt through faultings (following the injections of residual basic rock melt) from intermediate magmatic focus, whose earliest derivatives are rocks forming the Buki massif.
Data on the genetic type of the sulphide copper-nickel mineralization, new for the Ukrainian Shield, are presened. Primary magmatic origin of sulphide ores is established and a genetic model of their formation is suggested.
Numerous intrusions of mafites and ultramafites are revealed in the frame of the Buki massif (the Ukrainian Shield). The epigenetic impregnated sulphide copper-nickel ores were found in two of them (Prutivka and Zaliznyaki). The chemistry of these intrusions is compared with intrusions of similar composition in nickel-bearing regions of the Soviet Union. A conclusion was made about the potential sulfide nickel mineralization of the massifs composed of pyroxenites and peridotites, which have positive petrochemical signs for the ores.
Platinum content of sulphidic copper-nickel: ores in intrusive mafite-ultra-mafites of the Volynian megablock of the Ukrainian Shield was studied for the first time. It is found that accumulation of platinoids is a result of residual melts at high activity of bismuth and tellurium. A rise in the platinum concentration of minerals corresponds to an increase in metallic properties of relations in their structures. Attribution of platinoid concentration to zones of enhanced content of a volatile constituent of the ore-magmatic system may serve as a prospecting criterion.
At present Prutiv intrusion is investigated mainly as sulfide-nickel object. Sulphide copper-nickel mineralization refers to the contacts between habroids and bearing strata, it is now considered to be one of the most challenging objects of the north-western part of the Ukrainian shield to investigate various types of mineralization: sulphide-nickel, attendant noble-metal and platinum-metal one.