Geology, geography and global energy

Scientific and Technical Journal

GEOLOGICAL STRUCTURE ANALYSIS OF FRASNIAN-FAMENNIAN AGE REEFOGENIC BUILDUP CAP ROCKS WITHIN MUCHANOVO-EROHOVSKY DEFLECTION

2019. №4, pp. 45-59

Vyazovkina Anastasia O. - postgraduate student, Samara State Technical University, 244 Molodogvardeiskaya St., Samara, 443100, Russian Federation, vz-anastasia@mail.ru

Gusev Vladimir V. - Ph. D. in Geology and Mineralogy, Professor, Samara State Technical University, 244 Molodogvardeiskaya St., Samara, 443100, Russian Federation, vlgusev53@mail.ru

Currently, the need to improve the accuracy of the СЃap rocks reliability antici-pating is greatly increased when geological exploration works to find new deposits in carbonaceous sediments. A review of literature on the study of reefogenic buildups and cap rocks has been completed. The article researches geological and geophysical criteria for the selection of reefogenic buildups on the basis of a seismic and GIS data comprehensive analysis. Conditions of sedimentation accumulation in the Middle-Upper Devonian and Lower-Carboniferous Time in the research area were analyzed. The lithological characteristic of the cap rocks has been given. A series of correlation schemes were built through the fence, outer, internal onboard and axial zones of the Muchanovo-Erohovsky deflection (MED), a map of the cap rocks sediments thickness, which allowed to get an idea of the structure cap rocks geological features. The results of the studies made it possible to determine the criteria for highlighting the predicted zones of cap rocks reliability and to rank the allocated objects in relation to the MED zones and the reliability of cap rocks.

Key words: рифы, флюидоупоры, геологоразведочные работы, сейсморазведка, неантиклинальные ловушки, условия осадконакопления, схема корреляции, Муханово-Ероховский прогиб, геологические риски, reefs, cup rocks, geological exploration works, seismic survey, non-anticl

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