d'Oliveira, Léa; Maignan, Adrien; Peyron, Odile; Joannin, Sébastien; Combourieu-Nebout, Nathalie; Genet, Marion; Lestienne, Marion; Dugerdil, Lucas; Fernandez, Giada; Giaccio, Biagio; Monaco, Lorenzo; Nomade, Sébastien; Pereira, Alison; Scao, Vincent; Regnier, Edouard; Balasse, Marie; Ménot, Guillemette (2026): Branched glycerol dialkyl glycerol tetraethers (brGDGTs) analysis of the Lago Grande di Monticchio (Italy) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.989981
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Published: 2026-02-13 • DOI registered: 2026-03-14
Abstract:
This dataset contains the concentration and relative abundance of branched glycerol dialkyl glycerol tetraethers (brGDGTs) components, along with Methylation of Branched Tetraethers (MBT'5Me), Cyclisation of Branched Tetraethers (CBT'), isomer ratio of 6-methyl branched glycerol dialkyl glycerol tetraethers (IR6Me) and Isoprenoid acyclic glycerol dialkyl glycerol tetraether/Crenarchaeol ratio (isoGDGT-0/Cren), for the sedimentary record of Lago Grande di Monticchio (Italy) covering the last 12,900 years. The analysis was performed by a double microwave extraction at 70°C with dichloromethane (DCM)-methanol (MeOH) mixture (3:1, v/v), filtered on a solid-phase extraction (SPE) cartridge and then separated into polar and apolar fractions on a silica column with a hexane-DCM (1:1, v/v) and DMC-MeOH (1:1, v/v) mixtures, respectively. Samples were then analysed by high-performance liquid chromatography with mass spectrometry (HPLC-MS) in hexane-propanol (98.2:0.2, v/v). Ions in selected ion monitoring (SIM) are detected for mass-to-change ratios according to Hopmans et al. (2016, doi: 10.1016/j.orggeochem.2015.12.006). The data table also contains the quantitative climate reconstructions inferred from brGDGTs (mean annual temperature and mean temperature of months above freezing) from four different calibrations (linear and multiple regression and Bayesian calibration; Martínez-Sosa and Tierney, 2019; Raberg et al. 2021; De Jonge et al. 2014; Bauersachs et al. 2024), and the pH reconstruction based on the calibration of Russel et al. (2018).
Supplement to:
d'Oliveira, Léa; Maignan, Adrien; Peyron, Odile; Joannin, Sébastien; Combourieu-Nebout, Nathalie; Genet, Marion; Lestienne, Marion; Dugerdil, Lucas; Fernandez, Giada; Giaccio, Biagio; Monaco, Lorenzo; Nomade, Sébastien; Pereira, Alison; Scao, Vincent; Regnier, Edouard; Balasse, Marie; Ménot, Guillemette (submitted): North–south Holocene seasonal contrast on the Italian peninsula: clarification of the latitudinal transition zone based on the multi-proxy study of Lago Grande di Monticchio. Quaternary Science Reviews
References:
Bauersachs, Thorsten; Schubert, Carsten J; Mayr, Christoph; Gilli, Adrian; Schwark, Lorenz (2024): Branched GDGT-based temperature calibrations from Central European lakes. Science of the Total Environment, 906, 167724, https://doi.org/10.1016/j.scitotenv.2023.167724
Blaga, Cornelia I; Reichart, Gert-Jan; Heiri, Oliver; Sinninghe Damsté, Jaap S (2009): Tetraether membrane lipid distributions in water-column particulate matter and sediments: a study of 47 European lakes along a north–south transect. Journal of Paleolimnology, 41(3), 523-540, https://doi.org/10.1007/s10933-008-9242-2
De Jonge, Cindy; Hopmans, Ellen C; Zell, Claudia; Kim, Jung-Hyun; Schouten, Stefan; Sinninghe Damsté, Jaap S (2014): Occurrence and abundance of 6-methyl branched glycerol dialkyl glycerol tetraethers in soils: Implications for palaeoclimate reconstruction. Geochimica et Cosmochimica Acta, 141, 97-112, https://doi.org/10.1016/j.gca.2014.06.013
De Jonge, Cindy; Stadnitskaia, Alina; Hopmans, Ellen C; Cherkashov, Georgy A; Fedotov, Andrey; Sinninghe Damsté, Jaap S (2014): In situ produced branched glycerol dialkyl glycerol tetraethers in suspended particulate matter from the Yenisei River, Eastern Siberia. Geochimica et Cosmochimica Acta, 125, 476-491, https://doi.org/10.1016/j.gca.2013.10.031
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
Martínez-Sosa, Pablo; Tierney, Jessica E (2019): Lacustrine brGDGT response to microcosm and mesocosm incubations. Organic Geochemistry, 127, 12-22, https://doi.org/10.1016/j.orggeochem.2018.10.011
Raberg, Jonathan H; Harning, David J; Crump, Sarah E; de Wet, Gregory A; Blumm, Aria; Kopf, Sebastian; Geirsdóttir, Áslaug; Miller, Gifford H; Sepúlveda, Julio (2021): Revised fractional abundances and warm-season temperatures substantially improve brGDGT calibrations in lake sediments. Biogeosciences, 18(12), 3579-3603, https://doi.org/10.5194/bg-18-3579-2021
Russell, James M; Hopmans, Ellen C; Loomis, Shannon E; Liang, Jie; Sinninghe Damsté, Jaap S (2018): Distributions of 5- and 6-methyl branched glycerol dialkyl glycerol tetraethers (brGDGTs) in East African lake sediment: Effects of temperature, pH, and new lacustrine paleotemperature calibrations. Organic Geochemistry, 117, 56-69, https://doi.org/10.1016/j.orggeochem.2017.12.003
Funding:
Centre National de la Recherche Scientifique (CNRS), grant/award no. INSU, LEFE-IMAGO (2022-2024): Inter-Calibration 40Ar/39Ar et Radiocarbone en Europe entre 10 000 et 40 000 ans BP
Coverage:
Latitude: 40.929600 * Longitude: 15.605699
Date/Time Start: 2023-05-31T10:47:00 * Date/Time End: 2023-05-31T10:47:00
Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 9.396 m
Event(s):
Parameter(s):
Change history:
2026-03-25T14:21:41 – "Calendar age" values were corrected on request of the author.
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
3317 data points
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