Nature of Inner Asia
Bibliographic description:
, , , , , , , , ENDOGENOUS FACTOR AND MORPHOGENETIC STRUCTURE OF SOILS IN THE ZONE AFFECTED BY KUCHIGER GIDROTERMS (BAIKAL RIFT ZONE, NORTH OF THE BARGUZIN BASIN) // Nature of Inner Asia. - 2018. №4(9). . - С. 54-72.
Title:
ENDOGENOUS FACTOR AND MORPHOGENETIC STRUCTURE OF SOILS IN THE ZONE AFFECTED BY KUCHIGER GIDROTERMS (BAIKAL RIFT ZONE, NORTH OF THE BARGUZIN BASIN)
Financing:
Работа выполнена при финансовой поддержке гранта РФФИ № 18-04-00454 А от 15.02.2018.
Codes:
Annotation:
Soil cover in the zones of tectonic faults and thermal water discharge of the north of Barguzin basin there is characterized by extremely high dynamics of formation. Ascend- ing gas-hydrothermal fluids cause changes of surface (bumps, small mounds, ridges, wave-like uplifts), soil profile turbation with a contrasting combination of pH and particle size distribution, salinization. In all soil sections there are morphological formations in the form of impregnated (bitumen-rich) layers, interlayers, spots, vertical or horizontal stripes. The most lithified horizons are viscoelastic, viscous. When wet, they have a black color (Gley1 2.5 / N), sticky, highly plastic consistency close to the plasticine, when dried very dense. A significant restructuring of the morphological characteristics allows us to to iden- tify untypical for background soils impregnated, turbocharged subtypes of alluvial soils.
Keywords:
soil; gas-hydrothermal fluids; Baikal rift zone; impregnated morphon.
List of references:
Article.pdf