PHANNEROZOIC EAST EUROPE- SIBERIA INTERACTION and PETROLEUM HABITAT of NORTHERN EURASIA

• Main Authors: K. Sobornov, A. Nikishin
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2009
• Subjects: Arctic; Tunguska; Novaya Zemlya; Pechora; Siberia
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.429.4845; http://www.searchanddiscovery.com/abstracts/pdf/2009/europe/abstracts/ndx_sobornov.pdf

The principal tectonic elements in Northern Eurasia are East European and Siberian cratons. A smaller continental block, the Neoproterozoic Brentsia plate, is situated in the Arctic shelf. The cratons are surrounded by Neoproterozoic-Paleozoic orogens (Sobornov, K and Yakubchuk, A, 2004, Yakubchuk, A.S., 2004). Basement of the prolific West Siberian basin includes amalgamated folded Paleozoic terrains. The Paleozoic orogenic collage is sinistrally offset along the Transeurasian strike-slip fault, which was active during late Paleozoic-Triassic times. This fault extends from South Siberia towards Pai-Khoy and Novaya Zemlya displacing all pre-Mesozoic structures for as much as 1,000 km (Fig. 1). Figure 1. Structural scheme of Northern Eurasia and location of the major sedimentary basins. Dotted line is the Transeurasian fault. 133 Two major phases of sedimentary basin development in Northern Eurasia are recognized in the plate tectonic context. The first one started in the Late Precambrian and finished in the Late Permian (circa 750-250 Ma). Much of the preserved sedimentary deposits of these times are in the Lena-Tunguska, Timan-Pechora and Volga-Ural basins. They developed as asymmetrical foreland-type basins