Results of the Study of Epigenetic Changes of Famennian–Tournaisian Carbonate Rocks of the Northern Marginal Shear Zone of the Caspian Syneclise (Kazakhstan)

Various genetic and morphological types of voids in carbonate reservoirs make it difficult to diagnose them, which can be seen the determination reservoir properties northern marginal shear zone Caspian Syneclise. A macro- microscopic study rocks was carried out by staining carbonates thin sections with alizarin (determination mineral composition, structure, texture, void fracture spaces, rock genesis). Instrumental methods (X-ray, DTA—differential thermal analysis, TGA—thermo-gravimetric probe microanalysis) established composition rocks, nature their diagenetic transformations, formation space. The elemental oxide a number samples using X-ray microanalysis method, formations intermediate thermochemical were found. results X-ray, DTA, TGA measurements data made possible reveal thermally inert oxides calcium, magnesium, silicon, iron, other compounds carbonates. relatively low-cost express method used determine material epigenetic changes obtain on space as result development tectonic fracturing processes leaching secondary bedded reservoirs.