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| 1 | The paper is devoted to the identification of the composition of structural fragments of humic acids (HA) extracted from the peat in the peat bog of Balanak. The alkyl elements predominate in the composition of HA, and the amount of oxygen-containing functional groups and phenolic fragments is reduced. The identified characteristics of the composition of HA are connected with the slow processes of peat formation in the North-Eastern Altai. It is shown that with the increase of the degree of the peat decomposition in humic acids the degree of aromaticity increases, and the amount of carbohydrate and alkyl fragments decreases. Keywords: peat, Gorny Altai, Siberia, organic substance of peat, humic acids (HA), element composition | 1100 | ||||
| 2 | The article identifies the group composition of the organic substance of peat in several geographical provinces of the Altai mountain range. Gives a comparative analysis of quantity indicators of organic components of the mountain peat under study with the West Siberian peat and the peat of the European terrain of Russia. Reveals the resemblances and distinctions in a quantitative proportion of separate groups of the organic substance of peat of a various genesis in conditions of humic and arid climate of Northeast, East and Southeast Altai provinces. Marks some features defined by specific conditions of mountain peat formation in a group composition of organic matter of regional peat. Keywords: peat, Gorny Altai, organic substance, bitumen, easily hydrolyzable materials, humic acids, nonhydrolyzed residue | 1044 | ||||