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DO RADIOCARBON AGES of PLANT WAX BIOMARKERS AGREE with 14C-TOC/OSL-BASED AGE MODELS in AN ARID HIGH-ALTITUDE LAKE SYSTEM?

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dc.contributor.author Aichner, Bernhard
dc.contributor.author Gierga, Merle
dc.contributor.author Stolz, Alexander
dc.contributor.author Mȩtrak, Monika
dc.contributor.author Wilk, Mateusz
dc.contributor.author Suska-Malawska, Małgorzata
dc.contributor.author Mischke, Steffen
dc.contributor.author Sachse, Dirk
dc.contributor.author Rajabov, Ilhomjon
dc.contributor.author Rajabov, Nasimjon
dc.contributor.author Rethemeyer, Janet
dc.date.accessioned 2021-11-17T01:01:22Z
dc.date.available 2021-11-17T01:01:22Z
dc.date.issued 2021-09-23
dc.identifier.citation Aichner , B , Gierga , M , Stolz , A , Mȩtrak , M , Wilk , M , Suska-Malawska , M , Mischke , S , Sachse , D , Rajabov , I , Rajabov , N & Rethemeyer , J 2021 , ' DO RADIOCARBON AGES of PLANT WAX BIOMARKERS AGREE with 14 C-TOC/OSL-BASED AGE MODELS in AN ARID HIGH-ALTITUDE LAKE SYSTEM? ' , Radiocarbon , pp. 1-16 . https://doi.org/10.1017/RDC.2021.78
dc.identifier.issn 0033-8222
dc.identifier.other 40549387
dc.identifier.other 5dda1f0b-bf76-4bd7-8521-9e720e5934f8
dc.identifier.other 85116169523
dc.identifier.uri https://hdl.handle.net/20.500.11815/2713
dc.description Publisher Copyright: © The Author(s), 2021. Published by Cambridge University Press on behalf of the Arizona Board of Regents on behalf of the University of Arizona.
dc.description.abstract To elucidate the dynamics of terrestrial leaf waxes in a high-altitude lake system, we performed compound-specific radiocarbon analysis (CSRA) of long-chain n-alkanes in two sediment core sections from Lake Karakul (Pamirs, Tajikistan) and in surface soil samples from the catchment area. We aimed to answer the question whether the n-alkanes are delivered into the lake sediment with substantial delay due to storage in soils, which may cause a potential bias when used as paleoenvironmental proxies. In the surface soils, the CSRA results reveal an age range of n-alkanes from modern to 2278 ± 155 cal BP. In the two sediment core samples, three of the four n-alkane ages fell on the lower ends of the 1σ-uncertainty ranges of modeled ages of the sediments (based on AMS 14C-TOC and OSL dating results). We conclude that sedimentary leaf waxes represent compounds with intermediate turnover time in soils, for example originating from alluvial plains close to the shores. Overall, the results provide evidence that sedimentary leaf wax compounds in this cold and arid setting are potentially older than the conventional age model indicates, but these findings need to be interpreted in context of the generally large uncertainty ranges of such age models.
dc.format.extent 16
dc.format.extent 2837634
dc.format.extent 1-16
dc.language.iso en
dc.relation.ispartofseries Radiocarbon; ()
dc.rights info:eu-repo/semantics/openAccess
dc.subject Jarðvegsrannsóknir
dc.subject Tímatalsfræði
dc.subject Central Asia
dc.subject chronology
dc.subject compound-specific radiocarbon analysis
dc.subject leaf waxes
dc.subject n-alkanes
dc.subject Pamirs
dc.subject Archeology (arts and humanities)
dc.subject General Earth and Planetary Sciences
dc.title DO RADIOCARBON AGES of PLANT WAX BIOMARKERS AGREE with 14C-TOC/OSL-BASED AGE MODELS in AN ARID HIGH-ALTITUDE LAKE SYSTEM?
dc.type /dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article
dc.description.version Peer reviewed
dc.identifier.doi 10.1017/RDC.2021.78
dc.relation.url http://www.scopus.com/inward/record.url?scp=85116169523&partnerID=8YFLogxK
dc.contributor.department Faculty of Earth Sciences


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