KEROGEN FROM THE CAMBRIAN DEPOSITS OF THE KUONAMKA FORMATION ( northeastern Siberian Platform )
T.M. Parfenova, A.E. Kontorovich, L.S. Borisova, and V.N. Melenevskii
A.A. Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences, prosp. Akad. Koptyuga 3, Novosibirsk, 630090, Russia
Keywords: Kerogen, elemental analysis, pyrolysis, carbon isotopy, geochemistry, Cambrian, Siberian Platform
Pages: 277-285
Abstract
Kerogens from the Lower and Middle Cambrian deposits of the Kuonamka Formation in the northeastern Siberian Platform have been analyzed by modern methods. We have determined the pyrolytic characteristics of insoluble organic matter and the contents of C, H, S, N, O, and the stable C isotope. The type and catagenesis of organic matter have been estimated, as well as the generating potential of oil source rocks. It has been found that the composition of kerogens taken from the Molodo River outcrops was affected by supergene processes and that the degree of their alteration is related to the organic content of rocks and their structure.
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