Article name Sypchugursky Gold-Ore Bulk Node is an Object of Special Attention (Eastern Transbaikalia)
Authors Salikhov S.S. ,
Bibliographic description Salikhov V. S. Sypchugursky gold-ore bulk node is an object of special attention (Eastern Transbaikalia) // Transbaikal State University Journal. 2023. Vol. 29, no. 3. P. 227–234. DOI: 10.2109/2227-9245-2023-29-3-227-234.
Category There is an opinion...
DOI 553.41 (571.5)
DOI 10.2109/2227-9245-2023-29-3-227-234
Article type Original article
Annotation A potentially promising object of Transbaikalia is the Sypchugursky gold-ore placer cluster, which is considered from the geological-structural and geodynamic positions. Its high resources are shown, primarily in its central part as a node of the greatest endogenous activity. The object of study is the Sypchugur gold-ore-placer cluster. The subject of research is the gold-ore-magmatic system and its evolution. The purpose of the study is to substantiate the high prospects for the gold content of the Sypchugur ore field as part of the ore cluster. The data are given on the need to carry out deep (600–800 m to 1 km) prospecting and appraisal work here on the 2nd stage of gold potential, where mineralization is predicted in a small area (the first km2) with resources of at least 50 tons of gold, in addition to other industrially significant metals ‒ copper, silver , molybdenum. It is possible to increase the reserves of the Sypchugur ore field by the Khrebtovy and Andreevsky sites, as well as by the western flanks of the Sypchugur ore-magmatic system ‒ the Luchisty and Gorkhon sites. The uniqueness of the recommended area is confirmed by regional factors: the junction of transregional faults ‒ the Mongolo-Okhotsk and Onon-Turin, a mantle plume that contributes to the long-term existence of the ore-magmatic system from the Early Paleozoic to the Jurassic-Cretaceous. Both factors provide spatio-temporal, conjugated development of geodynamics, magmatism and mineralization. Local factors are confirmed by the presence of various combined geological and industrial types of ores: mineralized zones, vein-disseminated (stockwork) and vein mineralization, as well as the wide development of pyritization zones, geochemical anomalies and the presence of mined placers. The apotheosis of productive activity is emphasized by the presence of fluidolites (eruptive and other breccias), which play both ore-bearing and ore-bearing roles. It is concluded that the ore blocks of the Sypchugur ore field ‒ Sypchugur, Tourmaline, Disputable are the objects of high prospects for gold with resources of at least 50 tons and require priority prospecting and appraisal work.
Key words Transbaikalia, Sypchugur ore cluster, gold, deep geodynamics, gold-bearing stages, faults, resources, ore-magmatic system, gabbrogranitoid pluton, fluidolites
Article information
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