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Location: 25 km SW from Karaganda, Kazakhstan
Republic Ave, 1Karaganda regionTemirtauKazakhstan101407
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Karaganda basin is located on the area of the same name and in the center of this region. Carbon coal-content area occupies the land of about 2000 km2 at the total thickness 4000m. Four synclines are notable in the basin: Tentek, Sherubainur, Karaganda and Verkhnesokursk, first three of them make an industrial part of basin and are studied full enough up to the depths 700-1300m. Productive sediments are represented by Ashlyarik, Karaganda, Dolinsk and Tentek series which contain up to 30 coal seams with the total working thickness 40m, coal ash content varies within the limits of 10-35 % with the tendency of reduction upwards the section. The most-widely spread are coals of types from hvBb to mvb. Karaganda basin is considered as a high gas content and gas content seams intensively grow from the beginning of methane zone up to 400-500m reaching 15-20 m3/t, and are more stabilized on the depth within the limits of 22-27 m3/t. Gas weathering zone depth varies within the limits of 60-250 m.The coal mines of Qarmet JSC (former ArcelorMittal Temirtau) are located in the Karaganda Coal Basin. The basin is more than 3,000 square kilometers and was formed by strata of Upper Devonian and Carbonic ages, Mesozoic and Cainozoic formations. Due to structural peculiarities, the coal basin is divided into three geology-based mining areas: Karagandinskiy, Sherubay-Nurinskiy and Tentekskiy.The geological structure of the Abaiskaya mine (formerly the Kalinina mine) is represented by sedimentations of carbonic, paleogene, neogene, and quarternary age. The carbonic section is represented by a full section of Karaganda suite divided into three sub-suites: lower (seams K1-K6), middle (seams K7-K14), and upper (seams K15-K20). Lithological content of the strata is represented by interbedding of sandstones, siltstones, argillites, carbonaceous argillites, and coal seams. Thickness of the suite sedimentations is 750m. The field of the Abaiskaya mine is located in the Southern part of the northeastern flank of Sherubai-Nurinskaya synclinal as a big tectonic block limited by a series of overlap faultings. Slope of the seam mainly varies 10 to 25° to the northwest. The area is complicated with folds and disjunctive imperfections. Results of exploratory works have indicated 91 disjunctive faults and 82 low-swing imperfections with amplitude distortion of 3-5m spreading from 50 to 300m. Zones of the imperfections have intensive cleavage of the strata with trace of drifts along sliding surfaces.
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