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Nature of Inner Asia

Bibliographic description:
Ubugunov V. L.
,
Ubugunova V. I.
SOIL-FORMING ROCKS ARE THE KEY TO UNDERSTANDING THE SOIL FORMATION UNIQUENESS IN WEST TRANSBAIKALIA // Nature of Inner Asia. - 2017. №4(5). . - С. 37-50.
Title:
SOIL-FORMING ROCKS ARE THE KEY TO UNDERSTANDING THE SOIL FORMATION UNIQUENESS IN WEST TRANSBAIKALIA
Financing:
Codes:
DOI: 10.18101/2542-0623-2017-4-37-50UDK: 631.48
Annotation:
In the article the peculiarities of soil-forming rocks of West Transbaikalia on the example of sandy deposits of Barguzin basin was considered. Studies have shown that the pH of the upper sand strata (n=59) is 8,8±0,04 95% confidence interval — 8,7-8,9. Studies have shown the upper sand strata pH (n=59) is 8.8±0,04 and 95% confidence interval is 8,7 and about 8,9. The alkalinity of the studied rocks is associated with the specifics of the world's largest Angara-Vitim batholith. In the mountainous framing of Barguzin depression batho- lith is represented by the Barguzin high potassium calc-alkaline, by Chivyrkuisky calc- alkaline and by transitional Zazinsky complexes of rocks. Alkaline background of rocks everywhere inherited by soils, violates the classical scheme of their development and creates difficulties in the taxonomy of the soil diversity, especially in the forest and foreststeppe zones. Even with a relatively high amount of precipitation nonpodzol and carbonate soils are formed under forests on the alkaline sands. In the study of the soils of Western Transbaikalia, soil scientists should take into account the particular properties of alkaline A-type granites.
Keywords:
Barguzin hollow, Angara-Vitim batholith, granites, sands, soils, pH.
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