Radiocarbon and optically stimulated luminescence (OSL) dating results for sediment cores KK12-1, KK12-2 and KK13-S1, Lake Karakul, Tajikistan

DOI

Lake Karakul in the eastern Pamirs is a large and closed-basin lake in a partly glaciated catchment. Two parallel sediment cores were collected from 12 m water depth. The cores were correlated using XRF analysis and the composite core of 12.26 m length represents continuous accumulation of sediments in the lake basin since 31 ka. To establish an age-model, radiocarbon dating of 24 samples (aquatic plant remains and bulk sediments) derived from all cores, and OSL dating of 10 sediment slices (8 - 12 cm) derived from core KK12-2 has been conducted. The age results of the two methods are generally in agreement. The lake reservoir effect (1386 years) was determined by dating of living aquatic plants and remained relatively constant over the length of the record. High sediment accumulation rates (SARs) were recorded before 23 ka and after 6.5 ka and interpreted to indicate relatively low lake levels. In contrast, low SARs between 23 and 6.5 ka suggest higher lake levels. The sediment cores from Lake Karakul represent an important climate archive with robust chronology for the last glacial-interglacial cycle from Central Asia.

Identifier
DOI https://doi.org/10.1594/PANGAEA.912818
Related Identifier https://doi.org/10.1016/j.quageo.2017.05.008
Related Identifier https://doi.org/10.1029/2019GL085202
Related Identifier https://doi.org/10.1016/j.palaeo.2018.08.010
Related Identifier https://doi.org/10.1007/s10933-017-9986-7
Related Identifier https://doi.org/10.1007/s10933-017-9980-0
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.912818
Provenance
Creator Mischke, Steffen ORCID logo; Lai, Zhongping ORCID logo; Aichner, Bernhard ORCID logo; Heinecke, Liv ORCID logo; Makhmudov, Zafar; Kuessner, Marie L ORCID logo; Herzschuh, Ulrike ORCID logo
Publisher PANGAEA
Publication Year 2020
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Language English
Resource Type Publication Series of Datasets; Collection
Format application/zip
Size 2 datasets
Discipline Earth System Research
Spatial Coverage (73.488W, 39.018S, 73.596E, 39.064N)
Temporal Coverage Begin 2012-04-22T00:00:00Z
Temporal Coverage End 2012-04-23T00:00:00Z