Secondary structures of the Babaevskoye coal deposit (Southern Urals) and conditions of their formation
Abstract
Shallow folds, dome- and ridge-shaped diapiric intrusions into overlying layers, shallow flattening and other manifestations of the so-called secondary tectonics within thick lignite deposits have received repeated coverage in the literature. Secondary tectonics of Ukrainian lignite deposits was studied by V.N. Chirvinsky, I.E. Slenzak, M.N. Karlov, V.T. Seryay; of German lignite deposits - by W. Gotan, K. Jurassky and others; of Korkinskoye deposit - by G.F. Krasheninnikov, O.I. Pinchuk; of Babaevskoye - by A.S. Khomentovsky and V.V. Kiryukov. Kiryukov. Diapiric phenomena complicate the development of coal deposits, exploration by the usual method does not establish the location and scale of diapiric phenomena. Most of the diapirs were discovered only in the process of exploitation of the deposits. The author of this article during 1952-1956 studied and documented on the exposed walls of the coal seams of Babaevsky, Mayachny (Southern Urals) and Alexandriysky (Ukraine) deposits various diapiric intrusions of the coal deposit into the overlying rocks and developed a hypothesis of their origin.
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