Micromorphological Characteristic of Different-Aged Cryosols from the East Part of Lena River Delta, Siberia, Russia

Micromorphological investigation of soils is a powerful tool for studying the transformation under influence various weathering mechanisms. In Arctic region, seasonal freezing/thawing processes, cryohydration leading type weathering. Soils different-aged islands Lena River Delta were investigated. Thin sections analyzed using polarizing microscope Leica DM750P (Leica Camera AG, Wetzlar, Germany). X-ray fluorescence analysis was used to determine chemical composition soils. As result work, rate soil minerals estimated, fabric considered, as well soil. The accumulation poorly sorted circular striated sand due active noted on young from Samoylov isl. formation biogenic sand-silt crumb aggregates at more ancient sites. Physical cryogenic processes has been noted.