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Geological Structure of the Semipalatinsk Region,
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH
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The Semipalatinsk region is located between Kalboy and the Chingiz range and extends in the southeastern direction from the settlement of Semiyarsk on the Irtysh River almost to Lake Zaysan. As a result of the 1200 000 scale geological survey conducted during 1954-1958 it has been established that the Near-Semipalatinsk region belongs mainly to the Zaisan-Irtish Hercynian intrageosyncline and only a narrow strip in the south-west refers to the Bayanaul-Chinghiz middle block mass geoanticline of the first order. Within the latter faunistically characterized deposits have been distinguished and are described in accordance with their stratigraphic relations. Within the Zaisan-Irtish intrageosyncline area faunistically characterized deposits have also been established. Multi-Phase intrusive complexes also have been distinguished here. Each of the complexes is characterized by a peculiar metallogenetic specialization.
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