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Engels, Stefan; Lane, Christine S; Hoek, Wim Z; Baneschi, Ilaria; Bouwman, Annerieke; Brogan, Eilis; Ramsey, Christopher Bronk; Collins, James A; de Bruijn, Renee; Haliuc, Aritina; Heiri, Oliver; Hubay, Katalin; Jones, Gwydion; Jones, Vivienne; Laug, Andreas; Merkt, Josef; Muschitiello, Francesco; Müller, Meike; Peters, Tom; Peterse, Francien; Pueschel, Ashley; Staff, Richard A; ter Schure, Anneke; van den Bos, Valerie; Wagner-Cremer, Frederike (2024): Lake Hämelsee: Lateglacial sedimentological, palaeoecological and geochemical data [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.964375

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Abstract:
This dataset provides the sedimentological, palaeoecological and geochemical data for the Lateglacial sediment sequence retrieved from Lake Hämelsee (Germany) in 2013. Loss-on-ignition, XRF, n-alkane, delta-Deuterium and GDGT measurements as well as counts of chironomids, diatoms and Pediastrum are presented against both depth (m) and age (cal yr. BP). The data provides information on the Lateglacial development of the landscape around lake Hämelsee, the local climate dynamics, and the changes in the lake ecosystem itself and has been used to identify the effects of external drivers on biodiversity parameters (alpha diversity, compositional turnover and productivity). Cores were retrieved from the lake using a 3-m long UWITEC piston corer deployed from a floating coring platform during field work in July 2013. Following LOI analysis, ITRAX core scanning and sampling for thin section analysis, core segments spanning between 1325-1687 cm sediment depth were subsampled into contiguous 1-cm-thick subsamples. These subsamples formed the basis for the subsequent chronological, sedimentological and palaeoecological analyses and were processed in various laboratories as specified below. Where appropriate, datasets are processed through amalgamation of consecutive samples to e.g. ensure high count sums or concentrations.
Keyword(s):
alkanes; Biodiversity; Chironomidae; deuterium; diatoms; ecosystem dynamics; GDGTs; Germany; Haemelsee; LOI; Pediastrum; XRF
Supplement to:
Engels, Stefan; Lane, Christine S; Hoek, Wim Z; Baneschi, Ilaria; Bouwman, Annerieke; Brogan, Eilis; Bronk Ramsey, Christopher; Collins, James A; de Bruijn, Renee; Haliuc, Aritina; Heiri, Oliver; Hubay, Katalin; Jones, Gwydion; Jones, Vivienne; Laug, Andreas; Merkt, Josef; Muschitiello, Francesco; Müller, Meike; Peters, Tom; Peterse, Francien; Pueschel, Ashley; Staff, Richard A; ter Schure, Anneke; Turner, Falko; van den Bos, Valerie; Wagner-Cremer, Frederike (2024): Biodiversity responses to Lateglacial climate change in the subdecadally-resolved record of Lake Hämelsee (Germany). Quaternary Science Reviews, 331, 108634, https://doi.org/10.1016/j.quascirev.2024.108634
Funding:
European Cooperation in Science and Technology (COST), grant/award no. COST action ES0907: ES0907 - INTegrating Ice core, MArine and TErrestrial records - 60,000 to 8000 years ago (INTIMATE)
Coverage:
Latitude: 52.766667 * Longitude: 9.316667
Date/Time Start: 2013-07-08T09:00:00 * Date/Time End: 2013-07-12T17:00:00
Comment:
The dataset includes the following worksheets:
• LOI: Loss-on-ignition presented as percentage weight-loss (Laboratory: Utrecht University, The Netherlands);
• XRF: selected geochemical major and minor elements (Ti, Si, Ca, Fe) expressed as counts per second, as elemental ratios, as centered log-ratios (CLR) and as log-ratios (log) (Laboratory: GFZ Potsdam, Germany);
• Pediastrum: taxa presented as percentage of the total Pediastrum count sum; Count sum (number), concentration (number/ml) and Pediastrum accumulation rate (PAR; number/cm2/yr) also provided (Laboratory: Technische Universität Braunschweig, Germany);
• Diatoms taxa presented as counts (individual valves). (Laboratory: University College London, UK);
• Chironomids: taxa presented as counts (whole or half head capsules). Weight per sample (g) also provided (Laboratory: University of Amsterdam, The Netherlands);
• n-alkanes: concentrations of individual n-alkanes presented as ug/g dry weight; Total concentration of n-alkanes (ug/g dry weight), average chain length (ACL) and carbon preference index (CPI) also provided (Laboratory: GFZ Potsdam, Germany);
• δD: delta-Deuterium measurements of selected n-alkanes presented as δD values corrected to the VSMOW scale (δD vs VSMOW ‰) with Standard Deviations (SD) given for each measurement. Average δD value for the C27, C29 and C31 n-alkane also provided (Laboratory: GFZ Potsdam, Germany);
• GDGT: concentrations of individual n-alkanes presented as ug/g dry weight; (Laboratory: Utrecht University, The Netherlands)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
8 datasets

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Datasets listed in this bundled publication

  1. Engels, S; Lane, CS; Hoek, WZ et al. (2024): δDeuterium measurements of selected n-alkanes (corrected to the VSMOW scale) in sediment core Haem13 from lake Hämelsee. https://doi.org/10.1594/PANGAEA.964525
  2. Engels, S; Lane, CS; Hoek, WZ et al. (2024): Dry mass concentrations of individual n-alkanes in sediment core Haem13 from lake Hämelsee. https://doi.org/10.1594/PANGAEA.964524
  3. Engels, S; Lane, CS; Hoek, WZ et al. (2024): Chironomidae whole or half head capsules counts in sediment core Haem13 from lake Hämelsee. https://doi.org/10.1594/PANGAEA.964523
  4. Engels, S; Lane, CS; Hoek, WZ et al. (2024): Individual valve counts of diatoms in sediment core Haem13 from lake Hämelsee. https://doi.org/10.1594/PANGAEA.964521
  5. Engels, S; Lane, CS; Hoek, WZ et al. (2024): GDGTs in sediment core Haem13 from lake Hämelsee. https://doi.org/10.1594/PANGAEA.964381
  6. Engels, S; Lane, CS; Hoek, WZ et al. (2024): Loss on ignition in sediment core Haem13 from lake Hämelsee. https://doi.org/10.1594/PANGAEA.964380
  7. Engels, S; Lane, CS; Hoek, WZ et al. (2024): Pediastrum taxa as percentage of the total Pediastrum count sum in sediment core Haem13 from lake Hämelsee. https://doi.org/10.1594/PANGAEA.964399
  8. Engels, S; Lane, CS; Hoek, WZ et al. (2024): Selected major and minor elements and element ratios in sediment core Haem13 from lake Hämelsee. https://doi.org/10.1594/PANGAEA.964382