Ore-forming Сonditions of the Blagodat Gold Deposit in the Riphean Metamorphic Rocks of the Yenisey Ridge According to Geochemical and Isotopic Data

Neodymium and strontium isotopic composition and rare earth elements (REE) distribution pattern have been determined in whole rocks and minerals were separated from host metamorphic rocks and disseminated sulfide ores of the Blagodat gold deposit. Isotopic data are given to construct few isochrones that could be reflected an age of main stages of metamorphic and metasomatic alteration in rocks varieties during a successive accumulation of gold in structural traps. The significant temporal range in the forming of the studied rocks can be interpreted as an evidence of multi-stage tectonic destruction accompanying with trust-folding processes, shear deformations and development of local fracture zones that had place from the Late Riphean to Middle Paleozoic time. According to isotopic data basic ore-forming processes were realized in the relatively narrow interval from 690 to 750 Ma that correspond to a beginning of continental rifting on the western margin of Siberian craton. Chemistry and trace element distribution are closed for host and auriferous schists and mainly showed differences in the composition initial sedimentary units. The middle negative value εNd (from -14 to -16) and very high positive value εSr (from +570 to +725) are mostly corresponded to that of upper continental crust matter. The role of synchronic granite intrusions in the studied area can be only estimated due to a generation of thermal energy and crustal fluids

Competence of university teachers in organizing and conducting distance learning at a university

Distance learning is a form of education that is perfectly suitable for the implementation of contemporary models of education in the information society. This fact relates to the tremendously progressive development of information technology and the increasingly more promising prospects for education. The present study aims to analyze the influence of professional self-improvement on the effectiveness of teachers’ work in the distance mode. Based on an empirical study using the survey method, the levels of competencies comprising competence in the organization and conduct of distance learning among teachers in the information-technical and pedagogical sphere are identified. The results obtained testify to the need to improve the pedagogical qualifications of teachers in the direction of improving competence in the field of information computer technologies and their application in education, as well as in the field of Internet technologies and distance learning

Genesis of precious metal mineralization in intrusions of ultramafic, alkaline rocks and carbonatites in the north of the Siberian platform

The gold and platinum-group elements (PGE) mineralization of the Guli and Kresty intrusions was formed in the process of polyphase magmatism of the central type during the Permian and Triassic age. It is suggested that native osmium and iridium crystal nuclei were formed in the mantle at earlier high-temperature events of magma generation of the mantle substratum in the interval of 765–545 Ma and were brought by meimechite melts to the area of development of magmatic bodies. The pulsating magmatism of the later phases assisted in particle enlargement. Native gold was crystallized at a temperature of 415–200◦C at the hydrothermal-metasomatic stages of the meimechite, melilite, foidolite and carbonatite magmatism. The association of minerals of precious metals with oily, resinous and asphaltene bitumen testifies to the genetic relation of the mineralization to carbonaceous metasomatism. Identifying the carbonaceous gold and platinoid ore formation associated genetically with the parental formation of ultramafic, alkaline rocks and carbonatites is suggested

IMPROVING THE RULES ON PARENTAL RESPONSIBILITY FOR THE UPBRINGING OF CHILDREN IN THE CONTEXT OF MEASURES TO STRENGTHEN THE LEGAL PROTECTION OF THE FAMILY IN RUSSIA

This article discusses the issues of family-legal protection of children in the non-performance of parent’s responsibilities for their care and maintenance. In particular, problems associated with the separation the children from the parents, application of rules on annulment and restriction of parental rights. The author of article suggests ways to improving the Russian family legislation

Impact local markets on development single-industry towns of mining regions: exploring the case of Khakassia

It is well-known that the life quality of monoprophilic territories is largely influenced by city-forming enterprises. The article considers the degree of influence of the city-forming enterprises of the coal industry on the development of agriculture of the industry of mono-profile territories in the region. In particular, the direction of the social vector in the activities of coal mining enterprises with regard to support of the corresponding the life quality in single towns has been revealed. Therefore, the material obtained as a result of the study can be used in the development of social development programs of monoprophilic territories with city-forming enterprises of the coal mining industry

Morphostructural malformations of graceful cattail Typha laxmannii Lepech. (Typhaceae) in the Don River delta

The article describes first findings of three multi-tiered anomalous pistillate morpho-structures (proliferation, “branching”, and fasciation) of Typha laxmannii inhabiting the coasts of the Donskoy Island, the Don River delta. It is suggested that these malformations are associated with an increasing technogenic load on the region as well as the transformation of the landscape in the historical and geological past, which led to the isolation of archaic and migratory Typha species in the delta branches

The evaluation of the correlation between entropy and negentropy in the structure of a technical system

The role of information uncertainty in the structure of a technical system is defined. The application possibility of the R. Hartley’s and C.E. Shannon’s approaches in determination of entropy and negentropy of structural content of the system are selected and justified. The connection between entropy and negentropy in the case of system states changes is justified. The determination example of the quantitative values of information that characterizes connection association between entropy and negentropy is done