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ON THE POSSIBILY OF ADDITIONAL PRODUCTION PROSPECTS FOR SHALE HYDROCARBONS IN EASTERN SIBERIA

V. S. Staroseltsev, K. V. Staroseltsev

Siberian Research Institute of Geology, Geophysics and Mineral Resources, Novosibirsk, Russia

Most specialists associate prospects for the production of shale hydrocarbons in Eastern Siberia with bituminous argillites of the Lower Cambrian. Nevertheless, one should take into account the possibility of production of shale oil and (or) shale gas from bitumen-saturated rocks of the Riphean basement on the western slopes of the Anabar anteclise, as well as from the Lower Proterozoic rocks in the Angara-Kotui rift trough. The article also deals with the subject of prospects for the bituminous Early Silurian shales of the Tunguska syneclise vast basin, primarily within the roof elevations of the Vendian-Silurian structural stage. Results of the study of anthraxolite-zeolite-quartz fossil fumaroles in the Lower Triassic tuffaceous horizon of the Upper Agata Lake basin are given. The Upper Agata Lake is a direct indicator of activation of the hydrocarbon formation processes in the underlying Lower Silurian graptolitic argillites. The eхpectation that such hydrocarbon sources are numbered with hydrocarbon reserved ones is substantiated because of very serious ecological damage for the unique natural landscapes and fauna of the region during its development.

Keywords: shale hydrocarbons, Tunguska syneclise, bituminous shales, Vend-Silurian structural stage, fossil fumaroles, environmental safety

DOI 10.20403/2078-0575-2018-1-56-60