Dry mass concentrations of individual n-alkanes in sediment core Haem13 from lake Hämelsee


This dataset provides concentrations of n-alkanes for the Lateglacial sediment sequence retrieved from Lake Hämelsee (Germany) in 2013. Concentrations of n-alkanes (ug/g), the Carbon Preference Index (CPI) and the Average Chain Length C21-C33 (ACL) are all presented against both depth (m) and age (cal yr. BP). The n-alkane concentration data provides information on the Lateglacial dynamics of local plant productivity, whereas the ACL and CPI of the sediment samples were determined to estimate origin and preservation condition. A total of 167 samples from the Lateglacial section of the core were processed using a Dionex 350 accelerated solvent extraction (ASE) system. Solid phase extraction (SPE) was used to separate the extracts into an aliphatic, aromatic and alcohol/fatty acid fraction. Separation was achieved by loading the extracts on activated silica columns and eluting each fraction with hexane, hexane/DCM (1:1 v/v) and DCM/MeOH (9:1 v/v) successively. The aliphatic fraction, containing the n-alkanes, was analyzed by gas chromatography-mass spectrometry (GC/MS). The peak areas for each n-alkane homologue were compared to the peak areas from an internal standard (5α-androstane) and an external n-alkane standard mixture for absolute quantification. We refer to Rach et al. (2020) for further details on the exact analytical setup. All measurements were performed in the laboratories of GeoForschungsZentrum Potsdam.

0 = below detection limit

DOI https://doi.org/10.1594/PANGAEA.964524
Related Identifier IsPartOf https://doi.org/10.1594/PANGAEA.964375
Related Identifier References https://doi.org/10.1016/j.orggeochem.2020.103995
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.964524
Creator Engels, Stefan ORCID logo; Lane, Christine S ORCID logo; Hoek, Wim Z (ORCID: 0000-0001-7313-100X); Baneschi, Ilaria; Bouwman, Annerieke; Brogan, Eilis; Ramsey, Christopher Bronk ORCID logo; Collins, James A; de Bruijn, Renee; Haliuc, Aritina ORCID logo; Heiri, Oliver ORCID logo; Hubay, Katalin; Jones, Gwydion; Jones, Vivienne; Laug, Andreas ORCID logo; Merkt, Josef; Muschitiello, Francesco; Müller, Meike; Peters, Tom; Peterse, Francien ORCID logo; Pueschel, Ashley; Staff, Richard A (ORCID: 0000-0002-8634-014X); ter Schure, Anneke; van den Bos, Valerie; Wagner-Cremer, Frederike
Publisher PANGAEA
Publication Year 2024
Funding Reference European Cooperation in Science and Technology https://doi.org/10.13039/501100000921 Crossref Funder ID COST action ES0907 https://www.cost.eu/actions/ES0907/ ES0907 - INTegrating Ice core, MArine and TErrestrial records - 60,000 to 8000 years ago (INTIMATE)
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 3173 data points
Discipline Earth System Research
Spatial Coverage (9.317 LON, 52.767 LAT); Lake Haemelsee, Germany
Temporal Coverage Begin 2013-07-08T09:00:00Z
Temporal Coverage End 2013-07-12T17:00:00Z