IX Международная студенческая научная конференция Студенческий научный форум - 2017

Loam as polymictic clay, widely used in the production of building materials (bricks, tiles, ceramic floor tiles, sewer and drainage pipes), brick-and-masonry mortars, clay-limestone cement and portland cement, as well as solutions for the plastering of walls, mud buildings, waterproof jumpers and gaskets; in foundry— as an additive in various forms for the manufacture of metal castings; geological exploration drilling polymictic clay with the addition of bentonitic clays used to prepare clay solutions. In our scientific work investigated samples of loams in Besaryk field. Grossly breed fawn-colored, uniformly colored, slightly lumpy, get your hands dirty, a good soak, in the water boils stormy under the influence of a drop of hydrochloric acid. Aleuritic calcareous loam, weakly gypsum. Texture: slightly clustered. Structure: Pelit- siltstone.

The breed consists of a mixture clay and detrital material. Detrital material predominates, present at about 75%, distributed in breed does not uniformly. Detritus angular and angular-rounded shape, the size of 0.1 mm and less represented by quartz, feldspar, calcite, limestone, entirely ferruginous and chloritized debris. Note also that detrital of amphibole, pyroxene, epidote, biotite and hydrated leaves gelified plant residues. The magnetite is present as an impurity.

Clay mass of brown color composed of pelitic particles having a refractive index more than Canadian balsam, and both high and low bire- fringence, represented, apparently, with an admixture of kaolinite hydromica, pelitomorphic calcite, finely divided silica-alumina dispersed and scattered iron hydroxides. Weak gypsum, plaster develops unevenly, nests of up to 0.2 mm. Nests stacked platelets of plaster the size of in hundredths fraction of a millimeter. In consequence of the staining of the sample suspension methylene blue solution pelitic fractions were painted in light purple color, which when added potassium chloride coloring did not change. This indicates qualitatively for the presence of a kaolinite sample (Table 1)

Table 1- Mineral composition of the sample of field Besaryk

№	Minerals	Content, %
1	2	3
1	Calcite	25,0
2	Quartz	23,5
3	Feldspar	20,1
4	Halloysite + kaolinite	12,6
5	Chlorite	6,7
6	Hydromica	3,0
7	Amphiboles	2,0
8	Biotite	2,0
9	Gypsum	0,7
10	Rutile	0,6
11	Magnetite	0,5
12	Phosphates	0,4
13	Epidote	unit value
14	Pyroxene	«
15	Iron hydroxides	2,9
	Total:	25,0

According to the chemical analysis of the sample S0з_com= 0,35%. Minerals containing sulphide sulfur is absent. Sulfate sulfur is present in microscopic plates of plaster.

Investigated raw material represented with clay composed of pelitic particles of size 0.01 mm (= 75%). Pelitic material (particle size of 0.01 mm or less) is represented by kaolinite-halloysite in mixtures with hydromica and impurity pelitomorphic calcite, finely ground aluminum silicates and iron hydroxides (tabl.2-3). Type of clay - hydromica - halloysite - kaolinitic. Elements: Cd, Sb, Bi, Hg, В, Tl, Та, La, Au, Се, Yb, In, U, Gd, Hf - less than detection limit.

Table 2 - Results of spectral analysis of clay (semi-quantitative)

Elements	Content, %
	Sample1	Sample2	SampleЗ	Sample4
	Ibata	Urangay	Sauran	Besaryk
Sr

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