scholarly journals Genetic and facial structure of quaternary deposits on the territory of the Gomel chemical plant

Author(s):  
Oleg V. Shershnyov ◽  
Aleksandr I. Pavlovskii

Analysis of lithological and genetic features quaternary deposits within the influence zone of industrial objects continues to be an urgent task of modern geology and geoecology. The article presents the results of studies of the lithologic features of quaternary deposits of the first from the surface of the low permeable layer underlying the ground aquifer within the sanitary protection zone of the Gomel chemical plant (GCP). In its structure, genetic types, groups of facies and facial varieties were identified. Large-scale (1 : 25 000) mapping of the established facies of quaternary deposits has been carried out. The present-day appearance of the formed natural and technogenic landscape has been studied. It has been established technolithomorphological changes of the geological and geomorphological basis of natural landscapes took place in the production zone of the plant. Facies of technogenic genesis has been identified.

2021 ◽  
Vol 939 (1) ◽  
pp. 012044
Author(s):  
A J Shokirov ◽  
S S Lapasov ◽  
K J Shokirov

Abstract At present, scientific research is underway to further develop vegetable growing in the secondary crop, in particular to further increase the yield and quality of white cabbage, to select a system of planting time-sowing scheme that maximizes the biological productivity of varieties, and to apply the most optimal standards of fertilization and irrigation. In this regard, the urgent task remains to determine the optimal varieties of cabbage that can be grown in repeated crops, their optimal planting scheme, timing, development and implementation of optimal standards for each variety of mineral fertilizers and irrigation, and its solution is large-scale throughout the country. Besides that a number of problematic issues are addressed, which could allow to get high and high-quality harvest of white cabbage in repeated sowing in grain-free areas.


2019 ◽  
Vol 47 (7) ◽  
pp. 3344-3352 ◽  
Author(s):  
Noam Shahar ◽  
Iddo Weiner ◽  
Lior Stotsky ◽  
Tamir Tuller ◽  
Iftach Yacoby

2020 ◽  
Vol 101 (4) ◽  
pp. 1133-1147
Author(s):  
Simone B das Neves ◽  
Ulyses F J Pardiñas ◽  
Patrícia Hadler ◽  
Elver L Mayer ◽  
Ana M Ribeiro

Abstract The rare cricetid rodent Bibimys Massoia, 1980 contains three extant species that are distributed in the lowlands of eastern South America between 35°S and 20°S and distinguished mostly by subtle morphological and genetic features. Several fragmented jaws belonging to this genus were recovered from Late Quaternary deposits located in northeastern Brazil, forming part of a rich archaeological and paleontological small mammal assemblage that has been recovered from caves in the Serra da Capivara, state of Piauí. This material is described herein as belonging to a new species, the most hypsodont member of the genus. The specimens also represent an extralimital occurrence of this sigmodontine, as the nearest extant population of Bibimys is ~1,200 km to the south. Because there are few reliable records of extinct small mammals from the Pleistocene–Holocene transition on the South American continent, in describing this new sigmodontine we extend the records of past biodiversity preserved in the Quaternary deposits of tropical South America. This new species likewise highlights that the Serra da Capivara deposits are promising for understanding the evolutionary history of cricetid rodents.


2012 ◽  
Vol 616-618 ◽  
pp. 185-189
Author(s):  
Dao Qing Zhou ◽  
Zheng Guo Fan ◽  
Lin Tan ◽  
Xu Zhao Huang ◽  
Bao Bao Cao ◽  
...  

The iron belt of northern Hebei and Shanxi provinces to western Liaoning province locates in great geological conditions and hosts various types iron mines, so the prospecting potential is huge. The found iron ore with industrial value have sedimentary metamorphic mines with large scale, and followed by magmatic, sedimentary, and contact-metasomatic ore deposits, etc. The iron mineralization of different types is great affiliated with the geotectonic environment of different geological periods, sedimentation, magmatic conditions, that behaviors different mineralization types corresponding to different geological periods in time, behaviors different iron mining area corresponding to different structural location in the space, consists of the iron metallogenic series coupled to the different time and the different genetic types in North China. Based on the analysis to the distribution regularity, ore-controlling factors and metallogenic series of iron mine, we deeped the regional ore-controlling geological condition and metallogenic regularity of iron ore, provided important reference information for regional exploration.


1996 ◽  
Vol 42 ◽  
pp. 175-185
Author(s):  
Peter Roll Jakobsen

Glaciotectonic deformation has a large impact on the stratigraphical and lithological variability of Quaternary deposits and the shallow subsurface pre-Quaternary sediments. Mapping of the distribution of glaciotectonic deformation involving pre-Quaternary and interglacial deposits has been carried out, and the density of glaciotectonic deformation analysed, on the basis of data from the well database ZEUS, at the Geological Survey of Denmark. Glaciotectonic deformation is widespread in Denmark. It is recognised in glacial terrains within morphological well-defined glaciotectonic complexes, and in areas with no obvious glaciotectonic related morphology as well as in areas covered with postglacial deposits. The dislocated bedrock is usually not transported for long distances, although rafts of pre-Quaternary bedrock may be transported up to 50 km or more. On a large scale, regions have been located showing high intensity of glaciotectonic deformation. Some of these regions are in good agreement with records from exposures and the geomorphology, others cannot be recognised without well log information.


PIG-BREEDING ◽  
2021 ◽  
pp. 9-13
Author(s):  
BELOUS A.A. ◽  
◽  
SERMYAGIN A.A. ◽  
TREBUNSKIKH E.A. ◽  
ZINOVIEVA N.A. ◽  
...  

Currently, realization and improvement of genetic potential of purebred boars is an urgent task in the field of pig-breeding. To achieve the task, it is necessary to include new parameters for the selection of individuals for the reproduction of the herd. The purpose of this work was to calculate genetic and phenotype correlation of fodder behavior indicators, feed conversion and predicted residual feed intake in pigs of Landras breed. The obtained scores of EBV could be used to understand direction of selection work, including new parameters of quantative features.


2019 ◽  
Vol 11 (1) ◽  
pp. 43-46
Author(s):  
S. A. Voinova

Traditional automatic control systems do not solve the task of limiting the harmful effects of technical objects on the environment. The problem is to increase the effectiveness of means of its protection against the harmful effects of industry. Relevant is the use of indicators of environmental performance of technical objects as controlled parameters. A new approach to the control of technical objects is proposed. As the main control parameter it proposed to adopt the level of their ecological efficiency. Complicating circumstances of solving the problem is the insufficient knowledge of the factors of harmful effects on objects of living nature, their intensity, interrelation, mechanism, strength, and dynamics of exposure. Improving the economic efficiency of technical objects leads to an increase in their ecological efficiency. The solution to the problem is facilitated by the fact that traditional ACS should be left in action, adding to them an ecological efficiency control component. Heat-powerengineering has a large impact on the environment through emissions and discharges of harmful substances and heat. To give to ASC the functions of controlling the ecological efficiency of the boiler (for SOy emission), it is necessary to apply an additional, new control loop - regulator of SOy concentration in furnace gases. An urgent task in the use of direct control of the ecological efficiency of boiler-furnace systems is the development and production of physical quantity sensors, reflecting the level of aggressiveness of the source of hazard, working in real time. Direct control of indicators of ecological efficiency is much easier in other branches of industry, in particular, in its food branch, where objects do not have a large-scale complex negative impact on the environment.


Author(s):  
Arkadiusz Piwowar

AbstractThe aim of the conducted study was to characterize the attitudes and practices of Polish farmers in the area of performing chemical plant protection treatments. A particular attention was paid to identifying the relationship between the direction of changes in the volume of chemical plant protection product consumption and selected attributes of farms. The main time range of the analyses covered the period of 2013–2017. Statistical data and results of representative surveys carried out on a sample of 1101 farms in Poland were used in the research process. Due to the large number of variants of the analysed variables, a multiple correspondence analysis was used, which made it possible to determine the correlation between the examined features (direction of changes in pesticide use relative to the farm area, economic size of the farm and location of the farm). Statistical analysis showed the existence of strong relationships between the physical (1) and economic (2) size of farms and the direction of changes in pesticide consumption ((1) φ2 = 0.0907; (2) φ2 = 0.1141)). According to empirical studies, the reduction of pesticide consumption took place mainly on the smallest farms. The implementation of the integrated plant protection directive has not resulted in significant changes in the form of reduced pesticide use in large-scale field crops. This raises the need to modify the strategy and model of crop protection in large-scale field crops in Poland.


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