de.pangaea.dataset964381 und de.pangaea.dataset964375 dataset PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact 2026-04-30T21:18:04Z https://doi.pangaea.de/10.1594/PANGAEA.964381 2024-04-17T06:26:58 publication https://doi.org/10.1594/PANGAEA.964381 Engels, Stefan

s.engels@bbk.ac.uk

https://orcid.org/0000-0002-2078-0361 information author Lane, Christine S

csl44@cam.ac.uk

https://orcid.org/0000-0001-9206-3903 information author Hoek, Wim Z

W.Z.Hoek@uu.nl

https://orcid.org/0000-0001-7313-100X information author Baneschi, Ilaria

ilaria.baneschi@igg.cnr.it

author Bouwman, Annerieke

anneriekebouwman@hotmail.com

author Brogan, Eilis

eilis.m.b@hotmail.co.uk

author Ramsey, Christopher Bronk

christopher.ramsey@arch.ox.ac.uk

https://orcid.org/0000-0002-8641-9309 information author Collins, James A

jamescolly89@hotmail.com

author de Bruijn, Renee

renee.debruijn@tno.nl

author Haliuc, Aritina

aritinahaliuc@gmail.com

https://orcid.org/0000-0002-5681-8210 information author Heiri, Oliver

oliver.heiri@unibas.ch

https://orcid.org/0000-0002-3957-5835 information author Hubay, Katalin

hubay.katalin@atomki.mta.hu

author Jones, Gwydion

g.jones@swansea.ac.uk

author Jones, Vivienne author Laug, Andreas

andreasjlaug@googlemail.com

https://orcid.org/0000-0002-5892-6725 information author Merkt, Josef

josefmerkt@gmx.de

author Muschitiello, Francesco

fm476@cam.ac.uk

author Müller, Meike

meikee.mueller@yahoo.de

author Peters, Tom

tompeters.home@gmail.com

author Peterse, Francien

f.peterse@uu.nl

https://orcid.org/0000-0001-8781-2826 information author Pueschel, Ashley

AshleyPueschel@outlook.com

author Staff, Richard A

richard.staff@arch.ox.ac.uk

https://orcid.org/0000-0002-8634-014X information author ter Schure, Anneke

a.t.m.t.schure@ibv.uio.no

author van den Bos, Valerie

valerie.vandenbos@vuw.ac.nz

author Wagner-Cremer, Frederike

F.Wagner@uu.nl

author PANGAEA

info@pangaea.de

https://www.pangaea.de/ information publisher tableDigital 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. completed Engels, Stefan

s.engels@bbk.ac.uk

https://orcid.org/0000-0002-2078-0361 information principalInvestigator alkanes Biodiversity Chironomidae deuterium diatoms ecosystem dynamics GDGTs Germany Haemelsee LOI Pediastrum XRF theme 1995-01-01 creation PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation 9.316667 9.316667 52.766667 52.766667 2013-07-08T09:00:00 2013-07-12T17:00:00 #0 = below detection limit ORDINAL NUMBER thematicClassification DEPTH, sediment/rock physicalMeasurement m m AGE physicalMeasurement ka BP ka BP Acyclic glycerol dibiphytanyl glycerol tetraether, per unit sediment mass physicalMeasurement 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 ng/g ng/g Monocyclic glycerol dibiphytanyl glycerol tetraether physicalMeasurement 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 ng/g ng/g Dicyclic glycerol dibiphytanyl glycerol tetraether physicalMeasurement 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 ng/g ng/g Tricyclic glycerol dibiphytanyl glycerol tetraether physicalMeasurement 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 ng/g ng/g Crenarchaeol physicalMeasurement 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 ng/g ng/g Crenarchaeol regio-isomer, per unit sediment mass physicalMeasurement 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 ng/g ng/g Branched glycerol dialkyl glycerol tetraether, IIIa physicalMeasurement 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 ng/g ng/g Branched glycerol dialkyl glycerol tetraether, IIIa' physicalMeasurement 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 ng/g ng/g Branched glycerol dialkyl glycerol tetraether, IIIb physicalMeasurement 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 ng/g ng/g Branched glycerol dialkyl glycerol tetraether, IIIb' physicalMeasurement 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 ng/g ng/g Branched glycerol dialkyl glycerol tetraether, IIIc physicalMeasurement 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 ng/g ng/g Branched glycerol dialkyl glycerol tetraether, IIIc' physicalMeasurement 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 ng/g ng/g Branched glycerol dialkyl glycerol tetraether, IIa physicalMeasurement 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 ng/g ng/g Branched glycerol dialkyl glycerol tetraether, IIa' physicalMeasurement 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 ng/g ng/g Branched glycerol dialkyl glycerol tetraether, IIb physicalMeasurement 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 ng/g ng/g Branched glycerol dialkyl glycerol tetraether, IIb' physicalMeasurement 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 ng/g ng/g Branched glycerol dialkyl glycerol tetraether, IIc physicalMeasurement 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 ng/g ng/g Branched glycerol dialkyl glycerol tetraether, IIc' physicalMeasurement 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 ng/g ng/g Branched glycerol dialkyl glycerol tetraether, Ia physicalMeasurement 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 ng/g ng/g Branched glycerol dialkyl glycerol tetraether, Ib physicalMeasurement 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 ng/g ng/g Branched glycerol dialkyl glycerol tetraether, Ic physicalMeasurement 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 ng/g ng/g text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.964381?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: 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 Lake sediment sequence retrieved using a 60 mm piston corer deployed from a floating platform. 2013-07-08T09:00:00 References 2016-01-01 publication https://doi.org/10.1016/j.orggeochem.2015.12.006 Hopmans, Ellen C

ellen.hopmans@nioz.nl

https://orcid.org/0000-0002-8209-1334 information author Schouten, Stefan

Stefan.Schouten@nioz.nl

author Sinninghe Damsté, Jaap S

jaap.damste@nioz.nl

https://orcid.org/0000-0002-8683-1854 information author documentDigital Organic Geochemistry 93 1-6