Petroleum habitat of East Siberia, Russia

Journal Article · Tue Mar 01 04:00:00 EST 1994 · International Geology Review

DOI:https://doi.org/10.1080/00206819409465458· OSTI ID:54523

Clarke, J W ^[1]

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1. Geological Survey, Reston, VA (United States)

East Siberia comprises three petroleum provinces - Lena-Tunguska, Lena-Vilyuy, and Yenisey-Anabar - that occupy the area of the Siberian craton. Petroleum has been generated and has accumulated in Precambrian rifts beneath the sedimentary basins and, more importantly, within the section of the basin itself. The platformal deposits of the basins extend beneath overthrusts on the east and south and are covered by sedimentary rocks of the West Siberian province on the west. Permafrost and gas hydrate deposits are present throughout most of East Siberia. In the Lena-Tunguska province, rifts that developed during Riphean time are filled by thick sedimentary rocks, in which petroleum deposits have formed. In Early Cambrian time a barrier reef extended across the East Siberian craton from southeast to northwest. A lagoon to the west of this reef was the site of thick rhythmic salt deposits, which are the main seals for petroleum in the province. The sedimentary sections of the platform cover ranges in age from Late Proterozoic to Permian. More than 25 oil and gas fields have been discovered in the province, all in Riphean through Lower Cambrian rocks. 17 refs., 7 figs.

• Sponsoring Organization: USDOE
• OSTI ID: 54523
• Journal Information: International Geology Review, Journal Name: International Geology Review Journal Issue: 3 Vol. 36; ISSN IGREAP; ISSN 0020-6814
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
PETROLEUM DEPOSITS
SEDIMENTARY BASINS
SIBERIA