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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 of alkenones in Hala Hu sediment core H7 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.933821, In: Aichner, B et al. (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: 2021-12-09

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Abstract:
Concentrations of alkenones were analysed in core H7 from Hala Hu, China by means of an Agilent 7890A gas chromatography (GC) instrument, equipped with a mass selective detector (MSD; Agilent 5975C Series) and a flame ionization detector (FID; Agilent 7683B Series). For the GC, an Agilent VF-200ms column (60 m, inner diameter 0.25 mm, film thickness 0.25 μm) was used.
The lake is located on the northern margin of the Tibetan Plateau (97.24 - 97.47°E, 38.12 - 38.25°N, 4078 m above sea level), along the modern marginal zone between the Asian Summer Monsoon (ASM) and westerlies influences. The core was drilled at the deepest point (65 m water depth) of the lake and extends from 212 to 636 cm sediment depth. According to the age-model (Yan et al., 2020) the covered time period is 7462 - 23610 cal yr BP.
Keyword(s):
Alkenone; Biomarker; China; isotopes; Paleoclimate; Sediment core; Tibetan Plateau
Related to:
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: 38.304980 * Longitude: 97.570810
Minimum DEPTH, sediment/rock: 2.12 m * Maximum DEPTH, sediment/rock: 6.20 m
Event(s):
Hala_Hu_2010-H7 (H7) * Latitude: 38.304980 * Longitude: 97.570810 * Elevation: 4079.0 m * Lake water depth: 64.5 m * Location: Hala Hu * Method/Device: Niederreiter Piston corer (NPC) * Comment: winter 2010
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepth sedmAichner, BernhardGeocode – composite depth
2Calendar age, minimum/youngCal age minka BPAichner, BernhardAge model of Yan et al., 2020
3Calendar age, maximum/oldCal age maxka BPAichner, BernhardAge model of Yan et al., 2020
4Calendar ageCal ageka BPAichner, Bernhardwmean; Age model of Yan et al., 2020
5Alkenone, C37:4, per unit sediment massC37:4/sedng/gAichner, BernhardGas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilentdw
6Alkenone, C37:3, per unit sediment massC37:3/sedng/gAichner, BernhardGas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilentdw
7Alkenone, C37:2, per unit sediment massC37:2/sedng/gAichner, BernhardGas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilentdw
8Alkenone, C38:4, per unit sediment massC38:4/sedng/gAichner, BernhardGas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilentdw
9Alkenone, C38:3, per unit sediment massC38:3/sedng/gAichner, BernhardGas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilentdw
10Alkenone, C38:2, per unit sediment massC38:2/sedng/gAichner, BernhardGas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilentdw
11Alkenone, C39:4, per unit sediment massC39:4/sedng/gAichner, BernhardGas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilentdw
12Alkenone, C39:3, per unit sediment massC39:3/sedng/gAichner, BernhardGas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilentdw
13Alkenone, C39:2, per unit sediment massC39:2/sedng/gAichner, BernhardGas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilentdw
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
672 data points

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