Source: https://www.geo.sgu.ru/en/articles/list?f%5B0%5D=field_heading%3A321
Timestamp: 2019-04-25 01:56:17+00:00

Document:
Authors: Zhidovinov N. Y., Kanevskaya I. D.
Authors: Korobov A. D., Korobova L. A., Kolotukhin A. T., Mukhin V. M., Gordina R. I.
Corrosion and regeneration types of plagioclase albitization have been determined in a terrigenous complex of productive reservoirs within the cover; this reflects two settings of tectonic-hydrothermal activation in a riftogenic sedimentary basin. Under the pulsating stress conditions (geodynamic anomalies), all plagioclases experience corrosion and, consequently, deanorthitization, with formation of authigenic albite foraminated crystals.
Authors: Oreshkin I. V., Oreshkin A. I.
Arguments are provided to substantiate relationship between the beds from the Devonian-Lower Carboniferous and the Visean petroleum complexes in the Stepnovskij swell and the wash-out zone (from the Timanskian to the Vorobyevskian beds) of the underlying Eifelian-Lower Frasnian complex. The data on the compositions of oils and free gases is used to show the presence of a lateral migration flow from the Pricaspian Depression to the southern and the southwestern areas of the Volga-Ural petroleum province.
Authors: Reshetnikov M. V., Utiuliev A. K., Paltsev I. S.
Authors: Astarkin S. V., Goncharenko O. P., Pimenov M. V.
Authors: Korobov A. D., Korobova L. A., Kolotukhin A. T., Mukhin V. M., Eleseeva L. V.
Detailed lithologic and geochemical investigations were used to show that the presence of hydrothermal coarsely lamellar, structurally perfect triclinic kaolinite (to a lesser extent, dickite) in association with regeneration and microdrusy quartz in terrigenous rocks is indicative of the weakly pulsating stress regime contributory to oil saturation in the mantle secondary reservoirs.
Authors: Martynova E. G., Staroverov V. N., Нohlov A. E.
Authors: Moskovsky G. A., Svidzinskiy S. A., Goncharenko O. P., Baranovskaya M. A.
Carnallite-halite rocks are the elements of halogenesis’ final stage. Carnallite setting have to follow after sylvinite setting. At the real cut (Gremyachinskoye field also) such succession is disturbed and foundations of those formations proceed of potassium accumulation. Structure of those rocks reflects the receipt in basin with evaporated brine of slightly evaporated solution. NaCl and sometimes KCl are salting out and formed ground halite and rare sylvinite- carnallite rocks.
Authors: Bukina T. P., Yanochkina Z. A., Korobov A. D.
Examinations of the Late Triassic and Jurassic gray clay sections in the Pricaspian region frequently lead to incorrect conclusions on their monotony. Laborious methods are needed to divide such sequences. Investigations of their material compositions make it possible to reveal the features associated with the source-area landscape evolution and sedimentation.
Authors: Gubatenko V. P., Moskovskiy I. G.
Authors: Kukhtinov P. D., Kukhtinov D. A.
Factual data has been analyzed on the unconformities at the Carboniferous-Permian boundary in the sections from the edge and the inner by-edge zones of the Pricaspian Depression; varieties of opinions on the unconformity formation mechanisms have been analyzed, as well.
Authors: Moskovsky G. A., Goncharenko O. P.
Investigation of the ≪productive≫ intervals in the Gremyachinskoye potassium-salt field shows the potassium and potassium-magnesium salt settling to have been accompanied with large-scale salting out of sodium chloride due to interaction of highly concentrated solutions from that part of the salt-generating basin with the low concentrated ones. The constantly arriving low concentrated brine was peculiar for high contents of sodium chloride. That has resulted in large-scale salting-out of halite as lenses, crusts and randomly shaped clusters.
Authors: Navrotckii O. K., Timofeev G. I., Titarenko I. A., Pisarenko Y. A., Dibrova A. I., Glukhova E. V.

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