Scientific and technical journal

«Geology, geophysics and development of oil and gas fields»

ISSN 2413-5011

Geology, geophysics and development of oil and gas fields
№7 (367), July 2022
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Geological structure, intensity of sediment erosion as a result of tectonic movements at different times of the geological history of the Tannuolskiy nose of the Altai-Sayan folded region

UDC: 553.98(571.5)(–925.15)
DOI: 10.33285/2413-5011-2022-7(367)-5-15

Authors:

BULGAKOV MAXIM A.1,
KOZHIN VLADIMIR N.1,
KOLESNIKOV VLADIMIR A.1,
TERESHKIN VLADISLAV V.1,
BOLDUSHEVSKAYA LYUDMILA N.2,
SAVCHIK DARYA M.2

1 LLC "SamaraNIPIneft", Samara, Russia
2 LLC "RN-KrasnoyarskNIPIneft", Krasnoyarsk, Russia

Keywords: field observations, geological structure, folded areas, Tannuolskiy nose

Annotation:

The article briefly describes the geological structure of the central part of the Tannuolskiy nose, followed by the analysis of its history formation based on the results of a joint geological seminar of SamaraNIPIneft LLC and RN-KrasnoyarskNIPIneft LLC in 2021. Field observations, geological maps data and literature sources are given. Stages of sediments powerful accumulation are assumed in the Cambrian, Ordovician and Silurian, Devonian and Jurassic of the Tannuolskiy nose. The degree of metamorphism of coals from the Middle Jurassic sediments of the Kaa-Khemskoe deposit indicates that the thickness of the Mesozoic deposits in the Central Tuva trough was more than 2 km. Field observations of ancient rocks outcrops in folded areas are very important for understanding the structure of complex regions when interpreting geological and geophysical sections.

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