Title

MIDDLE HOLOCENE GLACIER ACTIVITY IN THE RUSSIAN ALTAI: EVIDENCE FROM RADIOCARBON AND PALEOTREE DATA IN THE AKKOL VALLEY.

Authors

Nepop, R K; Agatova, A R; Nazarov, A N; Myglan, V S; Moska, P

Abstract

The available paleosol and paleowood data from the head of the Akkol trough valley, South Chuya range, indicates a climatically driven glacier dynamic in the Russian Altai. Radiocarbon dating of paleosols and paleotree fragments help determine the beginning of the Neoglacial in this high mountain region in the middle of the Holocene. New data limit the advance of the Sofiysky glacier at that time by the front of the Historical moraine. Less so than during the Historical stage (2.3–1.7 cal kBP), glacial activity 5–4 cal kBP is also supported by rapid reforestation. The Akkem moraine in trough valleys of the Russian Altai accumulated prior to the Holocene. The limitations and difficulties of radiocarbon dating of paleosols should be considered when interpreting the dating results.

Subjects

HOLOCENE Epoch; GLACIERS; RADIOCARBON dating; CARBON isotopes; VALLEYS; DENDROCHRONOLOGY

Publication

Radiocarbon, 2022, Vol 64, Issue 6, p1545

ISSN

0033-8222

Publication type

Academic Journal

DOI

10.1017/RDC.2022.74