Late-Glacial and Early Holocene history of Lake Khotavets (Mologa-Sheksna Lowland, NW Russia): a geodiversity conservation case study

Sadokov, D.O.; Sapelko, T.V.; Fedorov, G.B.

doi:10.31951/2658-3518-2022-A-4-1562

Late-Glacial and Early Holocene history of Lake Khotavets (Mologa-Sheksna Lowland, NW Russia): a geodiversity conservation case study

Авторы

Sadokov, D.O. ^{1, 2}
Sapelko, T.V. ³
Fedorov, G.B. ^{2, 4}

⁴

DOI:

https://doi.org/10.31951/2658-3518-2022-A-4-1562

Ключевые слова:

palaeolimnology, Early Holocene, Late Glacial, pollen, geochemical proxies, sedimentation, geodiversity

Аннотация

Evolution and regional climate changes during the Late Glacial/Holocene transition were studied using organic and inorganic geochemical proxies and pollen data from Lake Khotavets (NW Russia). Palaeoclimatic and palaeosedimentation sequence was described for the time slices 13.5 – 12.9, 12.9 – 11.8 and 11.8 – 11.1 cal. ka BP, attributed to the Allerød, Younger Dryas and Preboreal, respectively. Rapid organic accumulation, decrease of minerogenic input and woods expansion ~11.8 cal. ka BP were associated with the Holocene warming. The presented reconstruction determines scientific justification for specific geodiversity conservation.