The lithofacies of the Cenomanian succession within a gas field in the north of the West Siberian basin were studied using well log information especially spontaneous potential log to determine the lithostratigraphy, hydrodynamic characteristics, possible reservoir sands and depositional environment of the study area for opportunities that will support the exploration program. Geophysical well logs from six profile wells were used for this study.
Based on the review of the published data, the article analyzes the study of the problem of oil pollution migration in the upper part of the geological environment in the conditions of the Far North, where the movement of oil pollution occurs mainly in the layer of seasonal freezing and thawing of the cryolithozone. The factors influencing the spreadability and transport of oil, including the focus on the processes of formation of possible migration routes into frozen rocks are considered.
The article summarizes the comprehensive analysis of the results of interpretation for the materials of the wide-azimuth seismic survey MOGT-3D for the purpose of a detailed study of the geological structure of one of the sites of the Volgogradskoe Zavolzhye area to identify and
prepare for drilling oil and gas prospective objects.
Our own research data as well as numerous publications of recent years on modern problems of oil potential in the West Siberian oil and gas province were used in this study.
Based on new data on seismicity and materials from surveys of active faults, information was obtained on regional seismogenic structures of the European-African through tectonic belt. The kinematic characteristics of the faults that make up the through tectonic belt and earthquakes that occurred within these structures are given. An analysis of gravity anomalies based on satellite data suggests that the seismogenic structures of the European -African through tectonic belt have an ultra-deep penetration into the mantle, which determines their high seismic potential.
Among the numerous and diversiform Late Cretaceous siliceous sponges collected throughout the Volga region, several representatives of the genus Botryosella have been encountered, previously unknown for the area. Analysis of the skeleton morphology, peculiar for massive transverse outgrowths, confirms manifestations of isomorphism in Hexactinellids and the opinion of inaccuracies available in the descriptive terminology applied to the skeletal morphology of this Porifera group.
The first representatives of Cameroptychium on the territory of Russia, which are established in the rocks of the Upper Cretaceous of the Volga region, are described. The labyrinthine structure of the skeleton and the modular, colonial level of organization of these sponges are considered, which is typical for many Late Cretaceous Hexactinellids. The widespread manifestation of isomorphism indicates the finiteness of the formation of representatives of Hexactinellida. The origin of Cameroptychium is correlated with Santonian Plocoscyphia.
Coming to the Earth a flux of solar radiation is calculated using of modern numerical methods of celestial mechanics over a time interval of about 6000 years with the sampling interval of one year. The luminosity of the Sun was assumed constant. In the power spectrum of the insolation time series detected harmonic of the synodic period of the Mars, as well as harmonics of the combination frequencies of synodic periods of the planets Venus, Jupiter and Saturn, and the frequency corresponding to the sidereal year.
The paper demonstrates the modern agro-climatic recourses for the period 1981–2012 years and their comparison with the climatic norms for the last period 1912–1980 gg. Shows trends multiyear variations of agro-climatic indices by natural zones of the Saratov region
The article is devoted questions of regional level geosystems landscape zoning with Saratov region’s right bank as an example. Mapping was organized with GIS technologies using on the basis of topographic and thematic maps and space images decoding
The article represents main features of modern interactive educational technologies adoption of higher school educational process (with geoinformation systems classes as an example)
In this article, on the basis of daily meteorological material over the thirty years period the drought criteria are according to Selyaninov, Shashko, and Kabanov’s works. The most productive indicators are selected; best rate the degree of the aridity over the particular period. The criteria are considered in the drought insurance and subsidy payments to agricultural producers in the lean years on the regional and state level. The analyzed coefficients do not fully show the rate of drought, i.e.
On daily weather data for the 30-year period (1981–2011 years) st. Saratov South-East considered agrometeorological growing conditions of winter crops. The optimum sowing date and the temperature crosses 10оC, 5оC and 0оC. Analysis of the data showed that global warming shifted the date of transition temperature to a later date, which is important for growing crops. According to favorable autumn growing season were given numerical score of the fall season
The description of some results of three years of radiometer IKOR-M working is given. The possibility of comparisons of IKOR-M data with CERES data, working on three satellites is reviewed. The results of the calculations in the tables’ form of the absorbed solar radiation (ASR) for areas of equal size are presented. The temporary peculiarities of ASR in the Mediterranean area are considered. The mean monthly values of albedo over the Sahara, the Amazon Basin and tropical Africa are evaluated
In article stages of the organization of the ecological track laid on the territories of natural park «Kumysnaya Polyana» of the city of Saratov in detail reveal, the route with elements of improvement and information registration is offered, the assessment of an ecological condition of the geosystems adjoining a track is made
The paper presents the study materials vegetation using GIS and remote sensing data – satellite images. The description of this method of processing satellite images as «Tasseled cap», describes its advantages as compared to untreated so satellite images of vegetation in the study region
The changes in Saratov region ethnic composition during 2002–2010 are reviewed in the article. Also reviewed is demic diffusion throughout Saratov region districts and towns. The role of ethnic processes and ethnic migration in population change and its geography is elicited. The growth of people from Caucasus and Central Asia is noted
Article is devoted theoretical and methodological aspects of the functional organization of a cultural landscape. An object of research is ecological function which acts as external display of properties of landscape components in inter-element communications of nature-social systems. As a technological platform the cybernetic landscape – interactive operated computer model is considered
The article shows characteristic of regional features of oilfield’s geoecological risk (with Saratov region as an example). Geoinformation systems (GIS) and mathematical and cartographical models as a tool of their analysis are disclosed possibilities of using