S.A. Lazarenko1, S.V. Rasskazov1,2, A.P. Opara1
1Irkutsk State University, geological faculty, Irkutsk, Russia
2Institute of the Earth's Crust SB RAS, Irkutsk, Russia
Snopkov Sergey Viktorovich,
Candidate of Geological and Mineralogical Sciences,
664003 Irkutsk, Lenin str., 3,
Irkutsk State University, Faculty of Geology,
Associate Professor,
664074 Irkutsk, Kurchatov str., 3,
Siberian School of Geosciences, Irkutsk National Research Technical University,
Leading Researcher,
email: snopkov_serg@mail.ru.
Kurolenko Anatoliy Alexandrovich,
664003 Irkutsk, Lenin str., 3,
Irkutsk State University, Faculty of Geology,
Student of the 4-th course.
Abstract. In the Nepa-Botuoba anteclise of the Siberian Platform, the Sosninsky swell-like fold-thrust structure is described that was formed, presumably, since the Late Devonian – Early Carboniferous under conditions of episodic displaying of significant tangential stresses from the southeast – i.e. from the structural heterogeneity of the Baikal-Patom highlands, which has formed in the Late Riphean. The effect of shear deformations occurred also. It is shown that tectonic displacements that were recognized along thick plastic layers of salt, caused a significant difference in the geological structure of the deformed lower-middle (supra-salt and saline) and undeformed lower (sub-salt) structural complexes of the Dulisma oil and gas condensate field.
Keywords: Siberian platform, oil, gas, tectonic structure, thrust.
P. 25–35
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