Geology, geography and global energy

Scientific and Technical Journal

TYPES OF GEOLOGICAL SECTIONS OF DEVONIAN DEPOSITS IN THE SOUTH-WESTERN PART OF THE CASPIAN BASIN

2020. №4, pp. 53-58

Fedorova Nadezhda F. - Astrakhan State University, nadezhda.fedorova.59@inbox.ru

Relevance of the work is due to the scientific justification of the intervals of the section of Paleozoic subsalt complexes on the territory of the Astrakhan arch using geological materials. The purpose of the study is to analyze data from drilling deep, ultra-deep parametric and exploratory wells to dissect the section of a given territory and determine the zoning distribution of rocks. The method- ology of the study was based on processing data from field Geophysics materials - seismic exploration and drilling, as well as core and slurry materials. Results. The author studied geological sections for all the drilled parametric and search wells of the Astrakhan arch, both in its left-Bank and right-Bank parts. Conclusions. Preliminary factual data on the age, composition, and distribution of rock types in Paleozoic subsalt complexes was obtained for the southwestern part of the Caspian basin.

Key words: Caspian basin, Astrakhan arch, paleotectonics, paleogeomorphology, sedimentation, lower Carboniferous deposits

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