Special features of cryolithogenesis in the alluvial plains, Central Yakutia
DOI:
https://doi.org/10.26485/BP/1973/22/12Keywords:
alluvial plain, continuous permafrost, thermocarst, earth veinsAbstract
The study area is located the valley of the Lena River, in Yakutia. The area is marked by strong erosional processes, the presence of thermokarst features such as alases, and the long-term development of continuous permafrost. Alluvial deposits, mainly sands interbedded with clays and silts, contain numerous cryogenic structures, including polygonal ice wedges and earth veins. Both syngenetic and epigenetic structures are identified that vary by local lithological and environmental conditions. The observations highlight that, despite the dominance of sandy sediments, cryolithogenesis processes are highly active and diverse, primarily due to the continuous permafrost and its severe thermal regime.
References
Alekseyev, M. N., 1961 - Stratigrafiya kontinentalnykh neogenovykh i cetverticnykh otlozenij Vilujskoj vpadiny i doliny niznego teceniya reki Leny (Stratigraphy of the continental Neogene and Quaternary deposits in the Viluj basin and in the Lower Lena valley). Trudy Geol. Inst. Akad. Nauk SSSR, vyp. 51; Moscow.
Danilova, N. S., 1963 - Pervicno-gruntovye ziły v cetverticnykh otlozeniyakh reki Viluj (Primary-ground veins in the Quaternary deposits of the Viluj river). In-: Usloviya i osobennosti razvitiya merzlykh tolsc v Sibiri i na Severo-vostoke. Ed. Akad. Nauk SSSR, Moscow.
Danilova, N. S., 1964 - Podzemnye Idy doliny niznego teceniya reki Viluj, usloviya ikh obrazovaniya i paleogeograficeskoe znacenie (Undergronud ice in the Lower Viluj valley, conditions of its development and its paleogeographic significance). In: Sovremennye voprosy regionalnoj i inzenernoj geokriologii. Ed. Nauka, Moscow.
Kacurin, S. P., 1950 - Vecnaya merzlota i relef na Leno-Vilujskom vodorazdele (Permafrost and relief in the Lena-viluj watershed divide). In: Issledovanie vecnoj merzloty v Yakutskoj respublike, vyp. 2; Ed. Akad. Nauk SSSR, Moscow.
Katasonov, E. M., Solovev, P. A., 1969 - Putevoditel k ekskursii po Centralnej Yakutii - paleogeografiya i periglacyalnye yavleniya (Guide to the excursion to Central Yakutia - Paleogeography and periglacial phenomena). Yakutsk.
Katasonova, E. G., 1963 - Sovremennye mnogoletnemerzlye otlozeniya i ikh boleye drevnie analogii v severe-vostocnoj casti Leno-vilujskogo mezdurecya (Recent perennially frozen deposits and their more ancient analogues in the northeastern part of the Lena-Viluj interfluve). In: Usloviya i osobennosti razvitiya merzlykh tolsc v Sibiri i na Severo-Vostoke. Ed. Akad. Nauk SSSR, Moscow.
Popov, A. I., 1959 - Gruntovye ziLy na severe Zapadnoj Sibiri (Ground veins in the north of Western Siberia). Voprosy fiziceskoj geografii polarnykh stran, vyp. 2; Moscow.
Rusanov, B. S., 1968 - Biostratigrafiya kainozoiskikh otlozenij Yuznoj Yakutii (bio stratigraphy of the Cenozoic deposits of Southern Yakutia). Ed. Nauka, Moscow.
Solovev, P. A., 1959 - Kriolitozona severnoj casti Leno-Amginskogo mezdurecya (The cryolithozone of the northern part of the Lena-Amga interfluve). Ed. Akad. Nauk SSSR, Moscow.
