Gorniy vestnik Uzbekistana


Are shown a volcanism role in formation of burned breeds on brown-coal fields of the Southern Fergana coal basin (Kyrgyzstan). So far burned breeds traditionally were considered as products of thermal transformation clay, clay алевритовых breeds, formed as a result of the underground fires of layers of coal. However, the complex of geological factors revealed recently when studying burned breeds, allows to assume their origin not only due to the underground fires of layers of coal, but also and a vol- canogenic and sedimentary way. Field works included supervision, drawing up litologo-petrographic, mineral and geochemical, structural and lithologic cuts with approbation of meso-Cainozoic sedimentary and volcanogenic and sedimentary formations. The structure of productive carboniferous thickness in which tufogenno-sedimentary accumu- lation from tuf, lavas, tuffit, tufo-clays and other salted breeds, burned breeds (too tuff-lava), coal and ferromanganese breeds, products of unripe boxes of aeration enter is presented. It is shown that gliyezh meet practically on all coal fields: Dzhigiristan (with industrial stocks in a contour of working off, equal 16296,85 thousand tons) and on Angrensky coal mine, Uzbekistan, Priferganya - Minkushskoye, Almalyk and Hodzhakelen, objects of Kuzbass, etc. It is established that the near-surface fires on fields Almalyk (1900) and Hodzhekelen (1970) had local character which doesn't correspond to a format of formation of a commercial deposit of burned breeds. It was established that volcanic glasses, оливин, the monoklinalny and rhombic piroksena, biotite and other breeds close to basalts are a part of the studied burned breeds. Volcanogenic processes (depending on climatic conditions) actively influence formation of a chemical composition of mineral rainfall. Established facts about detection of burned breeds in zones of lack of layers of coal, as well as the material structure, corresponding to vulkanita of sour and average lavas confirms their magmatogenny nature of education. The volcanism played as a factor of accumulation of pyroclastic material, and also as the environment of transformation primary organic (torfo-) material the carbonaceous here.

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