Vol. 43 No. 1 (218) (2009)

On the basis of data of the chemical analysis and X-ray and electron-microscopy studies it was shown that the clinoptilolite modifies to other minerals of zeolite and alumosilicat group during hydrothermal treatment. The phase transformation processes are observed traced in conditions of the treatment (temperature, time, pressure, concentration and type of alkali). The parameters of the clinoptilolite stability in various conditions of thermal treatment are defined.

In the result of detailed three-dimensional lithogeochemical sampling of the Sungun Cu–Mo deposit (NW Iran) new geochemical method is developed for the study of the metasomatic alteration zones based on the application for exploration of such zones the contrast primary halos of the macroelements. The contrast vertical geochemical zonality revealed in the structure of these macroelements' halos is recommended as a criterion for assessing of the erosion level of the lithogeochemical halos and metasomatic alteration zones in bedrock within the covered areas, where the ore-bearing bedrock is covered by overburden and can not be sampled without mining and drilling works.

Complexation of remote and first of all of aerospace and hydrogeophysical methods is an important methodical aspect aimed on establishment of formation and distribution of regularities of an underground runoff in the studied region. It is an establishment of tectonic structures, a relief of regional confining layer, lithology and water-physical properties of rocks. In the work specified questions are discussed on the example of massif Aragats (as a typical volcanic region).

In the article the imposing of present slit of column boring and heavy type mountain produces are considered on the example of Hanqavan molybdenum deposit. By the exploration it is established that systematic lowering of content of molybdenum in the trials of core at its low percentage exit and raising it by furrowed trials. It is explained with eroding and bearing molybdenum, with the washing liquid, at the first case and at the second case with electoral painting of molybdenum in the trial, at the repelling of fissure. Different meaning inaccuracies of selection trial by size are approximately the same and by using the mountain boring system of prospecting they are mutual liquidated. The receipt results of the investigation allow to apply the mountain boring system of prospecting in the copper-molybdenum deposit with the sprinkle types instrument.

Taking into account the great amount of high-potassium tuffs, the opportunity of open elaboration and waistless production, it is possible to organize the production of chlorineless potassium fertilizers in Vanadzor. The observations have proved that these sorts after some processes can be used as a fertilizer without any ecological damage to the environment. That is why it is necessary to have more detailed and systematic observations and organize the production.

Using data from GGI-3000 evaporators, multifactor correlations between evaporation in the Lake Sevan basin and the actual (observed) values of meteorological elements for 1960–2000 that determine it were studied and analyzed. Reliable calculated equations of evapotranspiration has been got. The map of evapotranspiration values in Lake Sevan basin for July–August period is made up. Regularities of spatial distribution of evapotranspiration are exposed.

The South-East crest of West-European anticyclone and the cold atmospheric front connected with it is one of the important synoptical processes for the formation of dangerous and unfavourable weather conditions in the territory of the Republic of Armenia. The analyses of synoptical and baric maps of the years 1948–2008 have shown that this type is repeated 4–5 times a year and is observed mainly during the months from October to April.