Vol. 54 No. 1 (251) (2020)

Studies conducted in a region with a wide development of crypto structures and a geological and structural analysis of the results made it possible to identify patterns of localization of mineralization. This made it possible to explain the position of the ore fields, to outline them, to quantify the estimated resources. The application of a similar approach in other areas may increase the efficiency of geological exploration.

The article discusses some issues of determining the shear resistance of the layered soils. The problem of determining the maximum shear resistances when the shear stresses are perpendicular to the layering is considered. It has been theoretically shown that when shear stresses act perpendicular to layering, tensile strength is achieved at lower values of shear stress than the total shear resistance. When determining the stability of a slope composed of layered soils, it is proposed to take the maximum shear resistance values of laboratory tests.

The work is dedicated on the second zone of sanitary protection problem, by using the example of fresh water springs which are exploided for water supply of Ashtarak and Ejmiatsin towns (Karbi and Ghazaravan springs). We calculated the second border of the zones of sanitary protection, which is the main problem for the pollution of springs. It will give an opportunity to keep fresh water springs away from the pollution by restriction of human activity.

In this article seismotectonic activity of Viraayots-Karabakh (Somkheto-Kapan) geotectonic zone was analysied. Using modern tectonic-geomorphological methods, the Neotectonic (Neogene-Quaternary) activity of blocks was analyzed and they were classified according to this indicator. As the block model of the territory a large-scale scheme of morphostructural zoning of the territory of Armenia was used, which shows all main lineament-block formations of the territory. Current seismicity of the territory, which is based on statistical analysis of registered here seismic events of different strength, was analyzed. Released total seismic energy for each individual block was counted. In the result general patterns of seismotectonic activity and certain spatial patterns of seismicity of Viraayots-Karabakh tectonic zone were highlighted, based on what strong earthquake prone blocks were selected.

The paper assesses the severity of climatic resources for the cold season and the comfort of climatic conditions for human health and activity. The possibility of the prospective use of climatic recreational resources of the cold period of the year, tourist attractiveness and ways of developing winter recreation is substantiated.

For the first time, comprehensive studies were conducted on four high-mountain lakes of Armenia to study their bathymetry, bottom sediment composition, geomorphological structure of basins and the spread of nivation and solifluction processes associated with altitudinal zonation and the presence of seasonal permafrost. It is noted that solifluction is better manifested on the slopes of slag cones (loose friable soil), and the displacement of chingils on steep slopes of volcanic lava flows.

Nowadays the medical tourism is organized in different geographical environments and its study is very important. In the article a thorough analysis is performed connected with the medical tourism arrangement features in different regions of the world, standards are determined․

The difficult socio-economic conditions during post-independence period and continual emigration have had a direct impact on the reproduction of population in the RA. General analysis of population reproduction of the RA during post 1990s period is given in the article. Reproduction tendencies during 2010-2018, revealation of territorial differences and pointing current problems are especially highlighted.

The article discusses service perceptions. In the current diversity, it is recommended to take service as a system of services and consider services as a set of actions that satisfy intangible requirements and improve satisfaction of material ones. Service is seen as a service system that leads from survival through growth to development. To fulfil the mission of the service, one must embrace the service philosophy, expose the concept of service and disseminate it as a worldview.

The service sector has an exceptional role in public life. The problem is in the targeted forms of development in this area. The importance of the "humanistic heart", formed on the general basis of national ideology of social conditions of cultural heritage of social and humanistic values, has been scientifically justified by the necessity of realization of the purpose for organization and management of service field.

The topic of branding is extremely important for all sectors of the economics. Building a brand of tourist destination is a painstaking, long-standing and multi-stage process. Many factors contribute to improving tourism performance. One of the most significant is the informational promotion of a tourist destination. The task of Мedia-channels is to inform and convince, doing it with a certain frequency.