Geology

Features Postsedimentation Structural and Textural changes in Rock Salt Deposits in Sections of Halide (with the Example of Prikaspian deep)

Assessment of textural and structural varieties of rock salt can make a prediction texture characteristics of reservoir rock salt for possible use in the design and construction of underground storage tanks

Anthropogenous Transformation of the Geological Environment in Urbanized Areas as a Factor in the Destruction of Natural Monuments (for Example “Open-cast Zaplatinovka”)

The condition of the natural monument “open-cast Zaplatinovka” in territory of Saratov in the condition of anthropogenous loading is considered in the article. The characteristic of a cut of anthropogenous deposits is resulted, stages of transformation of s relief on a site are allocated

Some Features of Hydrothermal Transition Amygdaloidal Basalts Turin Series Kushmurunskogo Graben (Turgay Trough)

The article discusses some features of hydrothermal alteration of basaltic amygdaloidal Turin volcanogenic-sedimentary series. The composition and the relationship of mineral components performing tonsil. The alternation of layer silicates and zeolites, indicating a change in the composition and physico-chemical characteristics of the mineral solution.

New Records of the Chimaeroid Genus Stoilodon Nessov & Averianov, 1996 (Holocephali, Chimaeroidei) Remains from the Late Jurassic and Early Cretaceous of European Russia

Based on new finds of mandibular tooth plates of the chimaeroid Stoilodon aenigma Nessov &Averianov, 1996 (Holocephali, Chimaeroidei) from the Lower Cretaceous of central Russia, the diagnosis of the genus is modified and validity of the taxon is confirmed. New record of mandibular plate of the species from the Ryazanian regional stage (boreal Berriasian stage) of the Moscow Region has allowed us to expand stratigraphical distribution of the species within the whole early Cretaceous. It is estimated that Stoilodon did not exceed 1.5 m in body length.

Perifrontal Forms of the Late Cretaceous Modular Hexactinellids (Porifera)

Certain tendencies are supposed to show up in morphogenesis of the Late Cretaceous skeletal sponges, hexactinellids; those tendencies make it possible to distinguish some forms of diverse-level modular organization among the unitary representatives of the group. Generation of primitive ≪modular≫ forms, defined as the perifrontal ones, is associated with incomplete gemmation and isolation of solitary cross canals, apo- or prosochetes

Hydrothermal Lithogenesis and Its Role in Riftogenic-Sedimentary Oil and Gas-Bearing Platform Complex Formation

Thorough lithologic investigations were used as the basis to demonstrate integration of the epigenetic transformations in the rocks from the transitional complex and the mantle of the West Siberian Plate in the process of tectono-hydrothermal activation.

Complex Application of Geophysical Methods at Various Stages Oil and Gas Search Works

In the article practice complex methods is considered at working off of regional geophysical profiles, the necessity rational complex geophysical and geochemical methods for the purpose of direct forecasting of oil and gas deposits is proved and the model of joint interpretation of the received data is offered

The Gas Poles in Conjunction Zones of the Large Geostructural Blocks of Complex Structure in the South-Eastern Part of the Russian Platform (within the Regional Uvarovo-Svobodniy Track, Saratov Region)

The article considers the features of the gasometric survey and seismic exploring results on the regional geophysic profile in territory of the large geostructual blocks on south-eastern part of Russian platform: Voronezh anticlise, Rjazano-Saratov’s deflection and Zhiguljov-Pugachov deflection. It selected testes of gas from 2m depth there are metan, its gomologes, hydrogen, gelium. In gas anomalies the fractured tectonic and geostructured elements reflected. Its presents the oil-gas prospecting interest.

On the Role of the Salting-out Processes at the Final Stages of Halogenesis (the Case of the Gremyachinskoye Potassium-Salt Field)

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.

On the Regional Prepermian Unconformity in the Sections from the edge Zones of the Pricaspian Depression

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.

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