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Russian Geology and Geophysics

2007 year, number 12


A.E. Kontorovich a , V.A. Kashirtsev a , V.I. Moskvin a , L.M. Burshtein a , T.I. Zemskaya b , E.A. Kostyreva a , G.V. Kalmychkov c , O.M. Khlystov b
a Institute of Petroleum Geology and Geophysics, Siberian Branch of the RAS, 3 prosp. Akad. Koptyuga, Novosibirsk, 630090, Russia
b Limnological Institute, Siberian Branch of the RAS, 3 ul. Ulan-Batorskaya, Irkutsk, 664033, Russia
c Institute of Geochemistry, Siberian Branch of the RAS, 1a ul. Favorskogo, Irkutsk, 664033, Russia
Keywords: Oil; gas; biomarker hydrocarbons; biodegradation; resources; Lake Baikal
Pages: 1046-1053


We analyzed oils, gases, and bitumens of bottom sediments from natural shows on the southeastern shore of Lake Baikal, in the mouth of the Stvolovaya River near Capes Tolstyi and Gorevoi Utes. Based on a set of geological data, we have established that: (1) the lake oils underwent biodegradation to a variable degree: