Trace elements, stable isotopes and rare earth elements in ostracod valves from sediment cores from Lake Nam Co and Tangra Yumco, Tibetan Plateau

High-resolution multi-proxy records from two lakes on the southern Tibetan Plateau, Nam Co and Tangra Yumco, are used to infer long-term variations in the Asian monsoon system. We examine the moisture evolution during the Late Glacial Maximum and Holocene using the trace element and stable isotope composition of ostracod shells. The sediment records covering the past 24 cal. ka BP and 18 cal. ka BP, respectively, demonstrate the suitability of ostracod shell chemistry as paleoenvironmental proxy. We analysed (i) Mg/Ca, Ba/Ca and Sr/Ca ratios as salinity proxies, (ii) Fe/Ca, Mn/Ca and U/Ca ratios representing redox conditions and microbial activity, and (iii) rare earth elements (REEs) reflecting weathering and changes in provenance.

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Börner, Nicole, Jochum, Klaus Peter, Stuhr, Marleen, Abstein, Michelle, Plessen, Birgit, Frenzel, Peter, Wang, Junbo, Zhu, Liping, Schwalb, Antje (2022). Dataset: Trace elements, stable isotopes and rare earth elements in ostracod valves from sediment cores from Lake Nam Co and Tangra Yumco, Tibetan Plateau. https://doi.org/10.1594/PANGAEA.941495

DOI retrieved: 2022

Additional Info

Field Value
Imported on November 30, 2024
Last update November 30, 2024
License CC-BY-4.0
Source https://doi.org/10.1594/PANGAEA.941495
Author Börner, Nicole
Given Name Nicole
Family Name Börner
More Authors
Jochum, Klaus Peter
Stuhr, Marleen
Abstein, Michelle
Plessen, Birgit
Frenzel, Peter
Wang, Junbo
Zhu, Liping
Schwalb, Antje
Source Creation 2022
Publication Year 2022
Resource Type application/zip - filename: Boerner-etal_2022
Subject Areas
Name: BiologicalClassification

Related Identifiers
Title: Late Quaternary changes in moisture availability and weathering intensity on the central Tibetan Plateau indicated by chemical signatures of ostracod shells
Identifier: https://doi.org/10.3389/feart.2022.826143
Type: DOI
Relation: References
Year: 2022
Source: Frontiers in Earth Science
Authors: Börner Nicole , Jochum Klaus Peter , Stuhr Marleen , Abstein Michelle , Plessen Birgit , Frenzel Peter , Wang Junbo , Zhu Liping , Schwalb Antje .