Izvestiya of Saratov University.
ISSN 1819-7663 (Print)
ISSN 2542-1921 (Online)


Геология

Terminal Permian Ichthyofauna from the Vicinity of Viazniki Town, Vladimir Province

Over the long and varied geological history of the junction zone of the south-east of the Russian Urals Hercynian plate and formed various types geogidrodinamicheskih systems The article analyzes the emerging and transforming paleogidrogeologicheskih environments conducive to the processes of petroleum, oil and gas, and, at certain moments, the destruction of hydrocarbon accumulations. Estimated cumulative effect of these processes

Terminal Permian Ichthyofauna from the Vicinity of Viazniki Town, Vladimir Province

The Upper Permian ichthyofauna from Vyazniki, Vladimir Region, has been analyzed. The rocks hosting fossil fish bones have been determined to belong to the terminal Permian ichthyofauna subzone Toyemia blumentalis-Gnathorhiza otschevi-Mutovinia sennikovi. An assumption is advanced that upwards in the section replacement of the fish complexes takes place, with some of the representatives pervading into the Triassic. Description of the actinopterygian Mutovinia sennikovi A.

Petromagnetic and Thermomagnetic Characteristic of Soils in the Area of ?Oktyabrskiy? Landfill Waste Disposal (Saratov)

Investigations of the physical parameters (magnetic susceptibility, thermal-magnetic effect) and soil texture and soil in the area of the landfill waste disposal. Performed a preliminary assessment of technogenic pollution of soils and soil heavy metals and petroleum products.

The History of the Study Sea Urchins from the Upper Cretaceous of the Volga Region

In the course of this work we cast the light on the state of research of the Late Cretaceous sea urchins in the Volga region as well as the development of ideas about their distribution in the rocks of the Upper Cretaceous in the region. Resources used in the research include studies about this group of invertebrates since the beginning of the XIX century up to the present day. It was estab­lished that the vast majority of publications consist of fragmentary information containing mentions of echinoderm remnants findings.

Geo-environmental Assessment of Soil Condition in the Zone of Influence Guselskogo Landfill Solid Waste of the City of Saratov

Investigations of soil in the affected area landfill solid waste. Investigated grain size, magnetic susceptibility, acid-base indicator, redox potential, the content of humus in the soil. On the basis of the data obtained in preliminary conclusions about the state of geo-environmental soil cover.

Transitory Level of Modular Organization in the Late Cretaceous Hexactinellids (Porifera)

The regularly arranged openings acting as additional oscula – subos­cula – in the skeletal structures of numerous hexactinellids made the basis for recognizing a transient level in those sponge organization: a transition between the unitary and the colonial forms. Unitary, autono­mous and colonial sublevels have been recognized in the transition structures. The morphological diversity of the Late Cretaceous transi­tions was called forth by manifestations of mosaic morphogenesis in the representatives of the Lychniscosa and Hexactinosa orders.

The Santonian – Campanian Rock Boundary Interval within the Zhirnovsk Uplift (Volgograd Region)

A lithologically continuous Santonian and Campanian rock section has been examined; the character of rock interrelations has been determined as the one common to the junction area of the northern part of the Don-Medveditsa and the southern termination of the Rtishchevo-Balanda swells and the Karamysh depression.

On the Prospects and Geo-ecological Consequences of Development of Deposits of Potassium Salts in the Saratov Region

The analysis of data on geo-ecological problems of development of potash deposits. The basic group of negative processes that arise in the process of developing the potash deposits. The main directions of research within geoekologicheskih promising areas in the Saratov region.

Recent Studies of Geodynamics Along Nile Delta (Northern Part of Egypt)

The Nile Delta occupies the extreme northern part of the Nile Valley in Egypt. It is located in the tectonically unstable shelf of the northern Africa and Mediterranean or the mobile belt which is marked by a complex subsurface structural framework. The present study aims to determine the recent crystal movement parameters along the Nile Delta using the Global Positioning System (GPS) measurements. To achieve this mission, a GPS network consisting of thirteen geodetic stations has been established along the Nile Delta area.

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