Genesis of Oils in Eastern Kamchatka: Evidence from Hydrocarbon Biomarkers
- 18 Downloads
Gas chromatography and gas chromatography–mass spectrometry data on oils from wells and seeps in the Eastern Kamchatka Basin indicate that, according to their composition and the distributions of biomarker molecules, these oils can be classified into three groups, which differ in the composition of the parent organic matter, litho–facies sedimentation conditions, and catagenetic transformations. Oils from the wells were determined to be produced by organic matter of the sapropel type of marine facies in the main oil window (MC2). Condensate from the natural seep was generated at higher catagenesis grades (MC2–3) by organic matter of the sapropel–humus type of littoral facies. Uzon oil shows are demonstrated to be formed in a continental environment by organic matter of the humus–sapropel type and were not genetically related to oil from the Paleogene–Neogene source rocks of the Bogachevka Formation.
Keywordsoil eastern Kamchatka Bogachevka Formation caldera of Uzon volcano biomarkers
Unable to display preview. Download preview PDF.
- N. S. Beskrovnyi, A. I. Bogomolov, N. N. Gurko, V. P. Grigor’eva, L. F. Stepina, Yu. S. Shchelovanov, V. K. Shimansky, and V. P. Filippov, “Geochemical features of oils from the Uzon volcano caldera, Eastern Kamchatka,” Sov. Geologiya, No. 10, 56–63 (1974).Google Scholar
- N. S. Beskrovnyi S. I. Naboko, S. F. Glavatskikh, V. I. Ermakova, B. A. Lebedev, and S. D. Taliev, “Oil potential of volcanism–related hydrothermal systems,” Geol. Geofiz., No. 2, 3–14 (1974).Google Scholar
- A. Yu. Bychkov, Geochemical Model of Modern Ore Formation in the Uzon Caldera, Kamchatka (GEOS, Moscow, 2009) [in Russian].Google Scholar
- I. V. Goncharov V. V. Samoilenko, N. V. Oblasov, and S. V. Nosova, “Molecular parameters of catagenesis of organic matter of the rocks of the Bazhenov Formation of the Tomsk district,” Geol. Nefti Gaza, No. 5, 53–60 (2004).Google Scholar
- M. K. Kalinko, “Genesis of microoil occurrences of the Uzon caldera, Eastern Kamchatka, in Transformation of Organic Matter in the Modern and Fossil Sediments and Main Stages in the Generation of Free Hydrocarbons (BNIGNI, 1975), pp. 50–57 [in Russian].Google Scholar
- E. I. Kudryavtseva, A. I. Bogomolov, N. N. Gurko, V. A. Lobko, L. F. Stepina, and Yu. S. Shchelovanov, “Kamchatkan oils and their geochemical characteristics,” in Prospects of Petroleum Potential of Kamchatka (VNIGRI, 1980), pp. 112–127 [in Russian].Google Scholar
- E. I. Kudryavtseva, S. P. Yakutseni, and L. S. Smurov, “Metals in oils of Kamchatka and Chukotka,” Dokl. Akad. Nauk 331 (4), 477–479 (1993).Google Scholar
- M. Li L. Stasiuk, R. Maxwell, F. Monnier, and O. Bazhenova, “Geochemical and petrological evidence for Tertiary terrestrial and Cretaceous marine potential of petroleum source rocks in the western Kamchatka coastal margin, Russia,” Org. Geochem. 36, 304–320 (2006).Google Scholar
- A. A. Petrov, Oil Hydrocarbons (Nauka, Moscow, 1984) [in Russian].Google Scholar
- B. P. Tissot, and D. H. Welte, Petroleum Formation and Occurrence (Springer–Verlag, Berlin, 1981).Google Scholar
- D. W. Waples and T. Machihara, Biomarkers for Geologists. A Practical Guide to the Application of Steranes and Triterpanes in Petroleum Geology (Tulsa, 1991).Google Scholar