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): GDGTs in sediment core Haem13 from lake Hämelsee [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.964381, In: 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 glycerol dialkyl glycerol tetraethers (GDGTs) concentrations for the Lateglacial sediment sequence retrieved from Lake Hämelsee (Germany) in 2013. GDGTs concentrations (ng/g) are presented against both depth (m) and age (cal yr. BP). The GDGTs dataset was used to calculate the GDGT-0/crenarchaeol ratio, which was interpreted to represent lake water oxygenation, which, given the local settings, was likely driven by changes in windiness. Additionally, the GDGT dataset was used to calculate the degree of methylation of 5-methyl brGDGTs (MBT'5me), which can be used to reconstruct past temperature change through translation MBT'5me into mean temperature of the months above freezing. As such, the GDGT data provides information on LGIT climate dynamics at lake Hämelsee. Of the 167 samples used for lipid extraction (see https://doi.pangaea.de/10.1594/PANGAEA.964524), the alcohol/fatty acid fraction of 94 samples was further processed to analyse glycerol dialkyl glycerol tetraethers (GDGTs), which are membrane lipids of certain archaea and bacteria (Schouten et al., 2013). In short, a known amount of internal standard was added to each fraction, which was then redissolved in hexane:isopropanol 99:1 and passed over a 0.45 µm PTFE filter prior to injection on a Agilent 1260 Infinity ultra-high performance liquid chromatograph coupled to an Agilent 6130 single quadrupole mass spectrometer following the settings and elution protocol of Hopmans et al. (2016). A minimum peak area of 3000 and a signal-to-noise ratio of >3 was maintained as detection limit. Quantification of the GDGTs is based on the assumption that the mass spectrometer equally responds to the GDGTs and the internal standard. All analyses were performed in the laboratories of Utrecht University, the Netherlands.
Keyword(s):
References:
Hopmans, Ellen C; Schouten, Stefan; Sinninghe Damsté, Jaap S (2016): The effect of improved chromatography on GDGT-based palaeoproxies. Organic Geochemistry, 93, 1-6, https://doi.org/10.1016/j.orggeochem.2015.12.006
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
Minimum Elevation: 22.0 m * Maximum Elevation: 22.0 m
Event(s):
Haemelsee_Haem13 * Latitude Start: 52.766667 * Longitude Start: 9.316667 * Latitude End: 52.766667 * Longitude End: 9.316667 * Date/Time Start: 2013-07-08T09:00:00 * Date/Time End: 2013-07-12T17:00:00 * Elevation Start: 22.0 m * Elevation End: 22.0 m * Lake water depth: 3.4 m * Location: Lake Haemelsee, Germany * Method/Device: Niederreiter Piston corer (NPC) * Comment: Lake sediment sequence retrieved using a 60 mm piston corer deployed from a floating platform.
Comment:
#0 = below detection limit
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | ORDINAL NUMBER | Ord No | Engels, Stefan | Geocode | ||
| 2 | DEPTH, sediment/rock | Depth sed | m | Engels, Stefan | Geocode | |
| 3 | AGE | Age | ka BP | Engels, Stefan | Geocode | |
| 4 | Acyclic glycerol dibiphytanyl glycerol tetraether | GDGT-0 | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | GDGT-0 (1302), per dry mass |
| 5 | Monocyclic glycerol dibiphytanyl glycerol tetraether | GDGT-1 | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | GDGT-1 (1300), per dry mass |
| 6 | Dicyclic glycerol dibiphytanyl glycerol tetraether | GDGT-2 | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | GDGT-2 (1298), per dry mass |
| 7 | Tricyclic glycerol dibiphytanyl glycerol tetraether | GDGT-3 | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | GDGT-3 (1296), per dry mass |
| 8 | Crenarchaeol | Cren | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | per dry mass |
| 9 | Crenarchaeol regio-isomer | Cren' | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | per dry mass |
| 10 | Branched glycerol dialkyl glycerol tetraether, IIIa | brGDGT IIIa | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | brGDGT IIIa (1050), per dry mass |
| 11 | Branched glycerol dialkyl glycerol tetraether, IIIa' | brGDGT IIIa' | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | brGDGT IIIa' (1050'), per dry mass |
| 12 | Branched glycerol dialkyl glycerol tetraether, IIIb | brGDGT IIIb | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | brGDGT IIIb (1048), per dry mass |
| 13 | Branched glycerol dialkyl glycerol tetraether, IIIb' | brGDGT IIIb' | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | brGDGT IIIb' (1048'), per dry mass |
| 14 | Branched glycerol dialkyl glycerol tetraether, IIIc | brGDGT IIIc | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | brGDGT IIIc (1046), per dry mass |
| 15 | Branched glycerol dialkyl glycerol tetraether, IIIc' | brGDGT IIIc' | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | brGDGT IIIc' (1046'), per dry mass |
| 16 | Branched glycerol dialkyl glycerol tetraether, IIa | brGDGT IIa | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | brGDGT IIa (1036), per dry mass |
| 17 | Branched glycerol dialkyl glycerol tetraether, IIa' | brGDGT IIa' | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | brGDGT IIa' (1036'), per dry mass |
| 18 | Branched glycerol dialkyl glycerol tetraether, IIb | brGDGT IIb | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | brGDGT IIb (1034), per dry mass |
| 19 | Branched glycerol dialkyl glycerol tetraether, IIb' | brGDGT IIb' | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | brGDGT IIb' (1034'), per dry mass |
| 20 | Branched glycerol dialkyl glycerol tetraether, IIc | brGDGT IIc | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | brGDGT IIc (1032), per dry mass |
| 21 | Branched glycerol dialkyl glycerol tetraether, IIc' | brGDGT IIc' | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | brGDGT IIc' (1032'), per dry mass |
| 22 | Branched glycerol dialkyl glycerol tetraether, Ia | brGDGT Ia | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | brGDGT Ia (1022), per dry mass |
| 23 | Branched glycerol dialkyl glycerol tetraether, Ib | brGDGT Ib | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | brGDGT Ib (1020), per dry mass |
| 24 | Branched glycerol dialkyl glycerol tetraether, Ic | brGDGT Ic | ng/g | Engels, Stefan | Infinity ultra-high performance liquid chromatograph, Agilent 1260, coupled to a single quadrupole mass spectrometer, Agilent 6130 [following Hopmans et al. 2016] | brGDGT Ic (1018), per dry mass |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1973 data points