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Vol 42 No 2
Pages:
34-37
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RUS
Research article
Geology

Causes of diapirs in thick lignite deposits of the South Ural basin

Authors:
V. V. Kiryukov
Date submitted:
1961-08-04
Date accepted:
1961-10-11
Date published:
1962-02-15

Abstract

Hypothesis of formation of secondary dome-shaped and ridge-shaped diapiric structures in thick lignite deposit. The hypothesis of formation of secondary dome-shaped and ridge-shaped diapiric structures in the thick lignite deposit of Babaevskoe deposit (Southern Urals) was developed earlier. In recent years, new data have been obtained that more fully characterize the structure of dome-shaped and ridge-shaped diapirs of the Babaevskoye field. Mining workings of the Kumertaussky (Ermolaevsky) coal mine have completely uncovered the coal deposit, including the “basal layer” of diapir structures, i.e., the layers located at the base of diapirs and not subject to plastic deformations. The studies conducted in 1954-1958 by G. L. Fisenko and G. L. Fisenko (1954-1958) have shown that the diapir structures are not subject to plastic deformation. G. L. Fisenko studies of landslide phenomena at the Kumertaus coal mine, in particular, numerous tests of physical and mechanical properties of coal and host rocks, provide sufficient data for approximate calculation of the possibility of plastic deformation and flow of layers of the coal deposit in the areas of development of diapiric structures.

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