Геология

Researches of snow cover in the city of Saratov. The chemical composition of the melt water and the insoluble residue. Based on the data conclusions about the ecological state of the snow cover.

By the results of exploration of Titonian – Berriassian sections of Mountain Crimea and Campanian – Maastrichtian sections of west of the Middle Asia, Volga region and Crimea it became possible to reconstruct the special aspects of the geomagnetic field paleointensity changes. There were received the average scale of variations, that rise at the end of geological periods. It should be noted that at the end of Jurassic the average amplitude of geomagnetic field variations was lower than at the end of Cretaceous.

Hexactinellids comprise diverse types of sponges viewed as solitary ones. They used to constitute the basis of sponge communities in the Middle-Late Jurassic and Middle Cretaceous of the European region. The morphological diversity of unitary forms is determined by the skeletal structure with combination of a goblet, a shaft, a false shaft and a system of rhizoids. The goblet wall is peculiar for the highest morphological flexibility, which contributes to substantial habitus changes of the skeleton original morphotypes.

Khvalynsk district of Saratov region has unique balneotherapeutic characteristics that led to development of a climate resort network, including alpine skiing resort. However, the resort health effect can be enhanced by the use of local mineral resources: medicinal ground waters and clays.

The paper deals with the results of complex lithology-facies examination of the UV1 1 layer within the Middle Ob group of fields. It is found that in the area under investigation, the layer was formed in the littoral-marine and shallow-water marine conditions under the effect of waves and currents. A paleogeographic chart has been constructed for the period of the UV1 1 layer generation in the Vasyuganian formation; forecast has been made as to the development of improved reservoir rocks.

In connection with Carboniferous, Permian and Triassic rocks, marked by magnetic susceptibility of thousand and dozens of thousands (10-5 SI units) that are located in southern part of Precaspian Depression, samples of these rocks were studied in details, using strongly magnetic samples. The possible effects of anomalous magnetic field were counted on the base of received data.

The linear trend of secondary dolomitization development within the Tevlinsko-Russkinskoye field has been found to traverse the tectonically contrasting, closely adjacent and hydrodynamically  interconnected compression-tension zones. This provides rationale for origination of a natural tectonic pump in the field.

The studies to determine the concentration of mobile and total forms of heavy metals. Assessed by an excess of total and mobile forms of heavy metals in the soil cover over the set of MPC and evaluated geochemical transformation of soils by analyzing their total fertility heavy metal pollution.

Provides rhythmostratigraphic characteristic of Lower Permian halogen formations of Western monoclinal part of the North-Caspian halmeic basin. Paleogeographic conditions of accumulation of potassium and magnesium and magnesium deposits in the Volga Monocline and the southern deadlock part that holds Gremyachinskoe deposit and related search sites: Darganovskiy and Ravninniy are considered.

It was established that with convective heat and mass transfer in the region of the Krasnoleninskij swell (West Siberia), the pulsating lateral pressure regime used to contribute to interlayer water avalanche liberation from the Upper Jurassic-Lower Cretaceous smectites in the process of their hydromicatization. The resurgent (petrogenic) water constituted the basis of the hydrothermal solutions responsible for the processes of ultra-acid leaching, metasomatosis, hydrocarbon generation and migration.