A late Pleistocene glacial maximum during MIS 3 in the Chersky Mountains, central northeast Siberia

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F25%3A00638440" target="_blank" >RIV/67985530:_____/25:00638440 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/25:10504047
Result on the web
<a href="https://www.cambridge.org/core/journals/quaternary-research/article/late-pleistocene-glacial-maximum-during-mis-3-in-the-chersky-mountains-central-northeast-siberia/96F0C5556D8CEA11D364B6756F335741" target="_blank" >https://www.cambridge.org/core/journals/quaternary-research/article/late-pleistocene-glacial-maximum-during-mis-3-in-the-chersky-mountains-central-northeast-siberia/96F0C5556D8CEA11D364B6756F335741</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1017/qua.2025.20" target="_blank" >10.1017/qua.2025.20</a>

Result language
angličtina
Original language name
A late Pleistocene glacial maximum during MIS 3 in the Chersky Mountains, central northeast Siberia
Original language description
The glacial history of northeast Siberia is poorly understood compared with other high-latitude regions. Using 10Be and 26Al exposure dating together with remote sensing, we have investigated the glacial history of a remote, formerly glaciated valley in the Tas-Kystabyt Range of the Chersky Mountains in central northeast Siberia. Based on measurements from moraine boulders and bedrock samples, we find evidence for deglaciation of the valley 45.6 +/- 3.4 ka ago, that is during the peak of Marine Isotope Stage 3. Satellite imagery of the range reveals at least two generations of moraines in other nearby valleys, indicating that multiple stages of glaciation took place across the Tas-Kystabyt Range. Based on calculated equilibrium-line altitudes, we speculate that the outer set of moraines is linked to the 45.6 +/- 3.4 ka deglaciation event identified by our dating, while the inner generation of moraines is associated with a younger glaciation event, possibly the last glacial maximum (LGM). Thus, our results reaffirm current impressions that the maximum ice extent during the last glacial cycle was reached before the global LGM in northeast Siberia.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10508 - Physical geography

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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