Model of formation of lead and zinc deposits within the Kyzyl-Tashtyg ore cluster and assessment of prospects of its commercial ore content.

Sulphide mineralisation within the Kyzyl-Tashtyg ore cluster in Russia consists of three types, igneous-sedimentary mainly sulphidic, hydrothermal-metasomatic sulphide polymetallic and hydrothermal barite polymetallic. A model for economic deposits is discussed based on formational, lithological-stratigraphic, igneous and structural factors. The geological and genetic model was used to develop a map for predicting the occurrence of economic mineralisation. Exploration drilling confirmed a continuation of ore-bearing structures along the eastern flank of the deposit, with thin massive sulphide polymetallic ores. Drilling at the Karovy site intersected fragments of hydrothermally altered rocks, sulphur-sulphide and polymetallic sulphide ores in the upper level of the ore clusters. Below this level was a zone with altered fluid porphyries and sulphide dissemination and Au- and Ag-bearing barite and barite- polymetallic veins about 1.5-2 m thick. One borehole intersected stratified sedimentary and thin massive hydrothermal-metasomatic ores.
Sulphide mineralisation within the Kyzyl-Tashtyg ore cluster in Russia consists of three types, igneous-sedimentary mainly sulphidic, hydrothermal-metasomatic sulphide polymetallic and hydrothermal barite polymetallic. A model for economic deposits is discussed based on formational, lithological-stratigraphic, igneous and structural factors. The geological and genetic model was used to develop a map for predicting the occurrence of economic mineralisation. Exploration drilling confirmed a continuation of ore-bearing structures along the eastern flank of the deposit, with thin massive sulphide polymetallic ores. Drilling at the Karovy site intersected fragments of hydrothermally altered rocks, sulphur-sulphide and polymetallic sulphide ores in the upper level of the ore clusters. Below this level was a zone with altered fluid porphyries and sulphide dissemination and Au- and Ag-bearing barite and barite- polymetallic veins about 1.5-2 m thick. One borehole intersected stratified sedimentary and thin massive hydrothermal-metasomatic ores.