Lake Baikal highstand during MIS 3 recorded by palaeo‐shorelines on Bolshoi Ushkanii Island
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F21%3A00531364" target="_blank" >RIV/67985530:_____/21:00531364 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/epdf/10.1111/bor.12464" target="_blank" >https://onlinelibrary.wiley.com/doi/epdf/10.1111/bor.12464</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/bor.12464" target="_blank" >10.1111/bor.12464</a>
Alternative languages
Result language
angličtina
Original language name
Lake Baikal highstand during MIS 3 recorded by palaeo‐shorelines on Bolshoi Ushkanii Island
Original language description
The debate regarding the history of water-level fluctuations in Lake Baikal extends back to the late 19th century and is rooted in the interpretation of the sequence of palaeo-shoreline terraces observed around the Baikal trough. Modern studies identify terraces up to 200 m above and down to 40 m below the present-day Lake Baikal water level, and opinions are split between (i) those who regard the lake-level fluctuations as a function of shifts in water balance associated with glacial and interglacial periods, and (ii) those who attribute the changes to predominantly tectonic factors, permitting water-balance fluctuations of not more than a few tens of metres. In either case, a definitive lake-level scheme must also constrain the relative elevation of the Baikal's outlet, which has not been fixed over time. Here, we focus upon the lake-level changes over the past 50 000 years with a new set of observations from an outstanding sequence of palaeo-shoreline terraces on Bolshoi Ushkanii Island located in central Lake Baikal. By determining the 14C age of soils rapidly buried by beach deposits on two terraces, we provide direct evidence of lake-level highstands at ~120–122 and ~72–83 m during Marine Isotope Stage (MIS) 3 (Karginsk interstadial). By integrating these results with the repeated subsidence of Baikal's outlet threshold since MIS 5e, we show that lake-level fluctuations closely align with swings in glacial and interglacial climate.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10508 - Physical geography
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Boreas
ISSN
0300-9483
e-ISSN
1502-3885
Volume of the periodical
50
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
101-113
UT code for WoS article
000555306300001
EID of the result in the Scopus database
2-s2.0-85089010460