Earth`s Cryosphere, 2019, Vol. XXIII, № 2, p. 3-11
MICROMORPHOLOGICAL FEATURES OF QUARTZ GRAINS FROM THE KYSYL-SYR DUNE MASSIF, CENTRAL YAKUTIA
A.A. Kut
Melnikov Permafrost Institute, SB RAS,
36, Merzlotnaya str., Yakutsk, 677010, Russia; ankaurban@mail.ru
The micromorphological study of quartz grains from the Kysyl-Syr dune massif in the lower reaches of the Vilyuy river included analyses for roundness and dullness and determinations of genetic groups of diagnostic elements on the quartz grain surface. The research results presented in this paper allowed to establish two stages in the formation of the Kysyl-Syr dune complex. Fluvial processes predominated during the first stage of sedimentation which began about 40 ka BP. The second stage (Late Pleistocene–Holocene) is characterized by eolian sedimentation.
Eolian sediment, Late Pliestocene, Holocene, micromorphological analysis, Central Yakutia