Eastern Kounrad deposit

EASTERN KOUNRAD MOLYBDENUM DEPOSIT (RU: Восточно-Коунрадское месторождение) is situated within the northern Balkhash region, within the Dzhezkazgan province of the Kazakh SSR. The deposit has been discovered during the 1932, the exploration is conducted since the 1941, the deposit is operated since the 1942. The industrial centre is the Kounrad settlement of the urban type. The deposit is of the greisen type, and of the veinous type. The deposit is confined to the eastern half of the Eastern Kounrad granitic pluton of the Upper Permian age, and is represented by the two systems of the molybdenite-quartz veins with the western-northern-western and northern-western strike.

The length of the major veins is 1000-2000 metres, with the average thickness of 0.5-1.0 metres; the dip of the veins is steep (88-90 degrees). The veins are accompanied by the fringes of the micaceous, micaceous-quartzous, and quartzous greisens, which are bearing the mineralization. There are distinguished within the structure of the veins the three belts: above the ore, with the ore, and below the ore. The vertical length of the belt with the ore is 200-250 metres. The declination of the veins is to the west-north-west with the angle of 5 degrees. The main ore mineral is the molybdenite. From the surface to the depth of 15-20 metres, molybdenum has been almost completely leached, and at the depth of 50 metres, the share of the oxidized molybdenum is 20%. The deposit is being developed using the underground method, using the system of the sublevel drifts with the soil-bench excavation. The extraction of molybdenum into the concentrate using the flotation is 89-92%; the content of molybdenum within the concentrate is 49-50%. The Eastern Kounrad deposit is the raw materials base of the Balkhash mining-metallurgical combined enterprise.