Concentrations of biomarkers (aliphatic fraction) in Hala Hu sediment core H11


Concentrations of aquatic (mid-chain n-alkenes, C20-HBIs) and terrestrial (long-chain n-alkanes) biomarker groups were analysed in core H11 from Hala Hu, China. The compounds were quantified relative to an internal standard (5α-androstane) using 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, a Restek DB-5 column (30 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) of the lake and extends from 0 to 212 cm sediment depth. According to the age-model (Yan et al., 2020) the covered time period is modern - 9216 cal yr BP.

Related Identifier
Related Identifier
Metadata Access
Creator Aichner, Bernhard ; Callegaro, Alice; van der Meer, Marcel T J ; Wünnemann, Bernd (ORCID: 0000-0002-7172-735X); Yan, Dada; Zhang, Yongzhan; Barbante, Carlo ; Sachse, Dirk
Publisher PANGAEA
Publication Year 2021
Funding Reference German Science Foundation, 259668396
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 1802 data points
Discipline Earth System Research
Spatial Coverage (97.571 LON, 38.305 LAT); Hala Hu