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Aichner, Bernhard; Callegaro, Alice; van der Meer, Marcel T J; Wünnemann, Bernd; Yan, Dada; Zhang, Yongzhan; Barbante, Carlo; Sachse, Dirk (2021): Concentrations and δD values of biomarkers in sediment cores H7 and H11 from Hala Hu, China [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.933814

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Published: 2021-07-19 • DOI registered: 2021-11-10

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Abstract:
Hala Hu is located on the northern margin of the Tibetan Plateau (97.24 - 97.47°E, 38.12 - 38.25°N, 4,078 m above sea level), along the modern marginal zone between the Asian Summer Monsoon (ASM) and westerlies influences. Cores H11 and H7 were drilled at the deepest point (65 m) of the lake and extend from 0 - 262 cm (H11) and from 212 to 636 cm (H7) depth, respectively. According to the age-model (Yan et al., 2020) the covered time periods are modern to 9216 cal yr BP and 7462 - 23610 cal yr BP. We analysed the concentrations and hydrogen isotopic compositions of different aquatic (alkenones, mid-chain n-alkenes, C20-HBIs) and terrestrial (long-chain n-alkanes) biomarker groups. Further, monoanhydrous sugars (firemarkers) were analysed in core H11. The principal aim of this study was to evaluate hydroclimate dynamics and ecosystem responses since the last glacial, in a typical glacier influenced, high-altitude and lacustrine ecosystem.
Keyword(s):
Alkenone; Biomarker; China; highly branched isoprenoid (HBI); isotopes; n-alkane; n-alkene; Paleoclimate; Sediment core; Tibetan Plateau
Supplement to:
Aichner, Bernhard; Wünnemann, Bernd; Callegaro, Alice; van der Meer, Marcel T J; Yan, Dada; Zhang, Yongzhan; Barbante, Carlo; Sachse, Dirk (2022): Asynchronous responses of aquatic ecosystems to hydroclimatic forcing on the Tibetan Plateau. Communications Earth & Environment, 3(3), https://doi.org/10.1038/s43247-021-00325-1
Further details:
Wünnemann, Bernd; Wagner, Johannes; Zhang, Yongzhan; Yan, Dada; Wang, Rong; Shen, Yan; Fang, Xiaoyu; Zhang, Jiawu (2012): Implications of diverse sedimentation patterns in Hala Lake, Qinghai Province, China for reconstructing Late Quaternary climate. Journal of Paleolimnology, 48(4), 725-749, https://doi.org/10.1007/s10933-012-9641-2
Yan, Dada; Wünnemann, Bernd (2014): Late Quaternary water depth changes in Hala Lake, northeastern Tibetan Plateau, derived from ostracod assemblages and sediment properties in multiple sediment records. Quaternary Science Reviews, 95, 95-114, https://doi.org/10.1016/j.quascirev.2014.04.030
Yan, Dada; Wünnemann, Bernd; Zhang, Yongzhan (2020): Late Quaternary lacustrine Ostracoda and their implications for hydro-climatic variation in Northeastern Tibetan Plateau. Earth-Science Reviews, 207, 103251, https://doi.org/10.1016/j.earscirev.2020.103251
Funding:
German Research Foundation (DFG), grant/award no. 259668396: Palaeoclimatology of Central Asia and the northeastern Tibetan Plateau on basis of compound-specific isotope analysis of biomarkers
Coverage:
Latitude: 38.304963 * Longitude: 97.570799
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
7 datasets

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Datasets listed in this bundled publication

  1. Aichner, B; Callegaro, A; van der Meer, MTJ et al. (2021): δD values of biomarkers in Hala Hu sediment core H7. https://doi.org/10.1594/PANGAEA.934228
  2. Aichner, B; Callegaro, A; van der Meer, MTJ et al. (2021): δD values of biomarkers in Hala Hu sediment core H11. https://doi.org/10.1594/PANGAEA.934229
  3. Aichner, B; Callegaro, A; van der Meer, MTJ et al. (2021): Concentrations of biomarkers (aliphatic fraction) in Hala Hu sediment core H7. https://doi.org/10.1594/PANGAEA.933780
  4. Aichner, B; Callegaro, A; van der Meer, MTJ et al. (2021): Concentrations of alkenones in Hala Hu sediment core H7. https://doi.org/10.1594/PANGAEA.933821
  5. Aichner, B; Callegaro, A; van der Meer, MTJ et al. (2021): Concentrations of biomarkers (aliphatic fraction) in Hala Hu sediment core H11. https://doi.org/10.1594/PANGAEA.933781
  6. Aichner, B; Callegaro, A; van der Meer, MTJ et al. (2021): Concentrations of alkenones in Hala Hu sediment core H11. https://doi.org/10.1594/PANGAEA.933820
  7. Aichner, B; Callegaro, A; van der Meer, MTJ et al. (2021): Concentrations of monoanhydrous sugars (firemarkers) in Hala Hu sediment core H11. https://doi.org/10.1594/PANGAEA.933818