Geology, geography and global energy

Scientific and Technical Journal

COMPOSITION AND POSTDIAGENETIC TRANSFORMATIONS OF SEDIMENTS OF THE LOWER STRUCTURAL LAYER OF THE PALEOZOIC WEST OF THE TURAN PLATE

2019. №4, pp. 67-77

Popkov Vasily I. - D. Sc. in Geology and Mineralogy, academician of Russian Academy of Sciences, Professor, Kuban State University, 149 Stavropolskaya St., Krasnodar, 350049, Russian Federation, geoskubsu@mail.ru

Popkov Ivan V. - Ph. D. in Geology and Mineralogy, Associate Professor, Kuban State University, 149 Stavropolskaya St., Krasnodar, 350049, Russian Federation, iv-popkov@mail.ru

The Paleozoic deposits of the West of turansk are exposed by deep wells in many areas. At the same time, among geologists and geophysicists there is no unity in the ideas about their structural and formational affiliation, which does not allow to give an objective assessment of the prospects for finding minerals in them.The article provides a detailed description of the Paleozoic strata of Mangyshlak. It is shown that they are mainly represented by primary sedimentary terrigenous and carbonate formations metamorphosed at the green shale stage of regional metamorphism. Within the projections, metamorphic rocks are broken by intrusions of Carboniferous granites and dikes of different composition. The latter led to the imposition of a local thermal on the regional metamorphism. Preservation of detritus in the process of deep catagenetic transformations of rocks is largely due to its unloading, sorting, size and shape, i.e. the nature of the original structure. From the analysis it follows that the considered rocks should be included in the Paleozoic folded Foundation with all the ensuing practical conclusions.

Key words: палеозойские отложения, метаморфизм, метагенез, катагенез, гранитоидные интрузии, складчатый фундамент, Paleozoic deposits, metamorphism, metagenesis, catagenesis, granitoid intrusions, folded Foundatio

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