Contact coal transformation under the influence of dolerite dike (Kaierkan deposit, Noril'sk district)
V.N. Melenevsky, A.N. Fomin, A.S. Konyshev, O.G. Talibova
Institute of Petroleum Geology and Geophysics, Siberian Branch of the RAS, 3 prosp. Akad. Koptyuga, Novosibirsk, 630090, Russia
Keywords: Coal; catagenesis; pyrolysis; vitrinite; intrusion effect
Pages: 667-672
Subsection: PETROLOGY, GEOCHEMISTRY AND MINERALOGY
Abstract
The influence of 6.75 m thick dolerite dike on the sheet coal of the Kaierkan deposit (northwestern Siberian Platform) was studied by organogeochemical methods. It is shown that initial bituminous coal was transformed into anthracite in the immediate vicinity of the dike. Chemical kinetic modeling of the dike-induced cracking of coal's organic matter was performed, and the maximum paleotemperatures were estimated.
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