HYDROCHEMICAL ZONING OF JURASSIC AND CRETACEOUS DEPOSITS OF THE WEST SIBERIAN BASIN
B.P. Stavitsky, A.R. Kurchikov, A.E. Kontorovich*, and A.G. Plavnik
West Siberian Affiliate of the Institute of Petroleum Geology, Siberian Branch of RAS, 56 ul. Volodarskogo, Tyumen', 625000, Russia
* Institute of Petroleum Geology, Siberian Branch of RAS, 3 prosp. Akad. Koptyuga, Novosibirsk, 630090, Russia
Keywords: Underground waters, mineralization, chemical composition, West Siberian basin
Pages: 779-785
Subsection: ORGANIC GEOCHEMISTRY AND HYDROGEOCHEMISTRY OF THE WEST SIBERIAN PETROLIFEROUS PROVINCE
Abstract
Information on composition of underground waters of the West Siberian basin has been systematized, and an electronic database has been made. Changes of water mineralization and contents of Ca, hydrocarbonate ion, Br, and I in them have been described. It has been shown that the waters are of infiltration and elision genesis, and their chemical composition is governed by interactions in the system water-rock-DOM. Some considerations on genesis and mechanisms of formation of water chemistry in separate parts of the basin are proposed.
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