Schaaff, Valentine; Grossi, Vincent; Makou, Matthew; Garcin, Yannick; Deschamps, Pierre; Hamelin, Bruno; Kiahtipes, Christopher Albert; Sebag, David; Ngounou Ngatcha, Benjamin; Ménot, Guillemette (2025): Isotopic lipid biomarker from the NGaoundaba peat deposit (Tropical Africa) covering the Holocene [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.979863
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Published: 2025-03-31 • DOI registered: 2025-03-31
Abstract:
This dataset includes lipid biomarker data from a peat sequence (named NGBA19) collected at the NGaoundaba peat deposit in 2019. The NGaoundaba peat deposit is located in North East Cameroon (N 7.135°, E 13.690°, 1175 m a.s.l). The 6-meter core was collected using a Russian peat corer. The core was subsampled at 2.5-cm intervals. Analyses were performed on 73 samples. Measurements were performed between 2020 and 2024 at the LGL-TPE (University Claude Bernard Lyon 1). The NGBA19 core covers the last 10 ka (detail on the datation method and results are given in Schaaff et al. (2023, doi:10.1016/j.orggeochem.2023.104589). This dataset is associated to a publication: Sensitivity to climate and vegetation dynamics of a peatland record from Central Cameroon during the African Humid Period (QSR). The publication details the full method used to obtain the data. The study focus on paleoclimatic and paleoenvironmental reconstructions particularly during and after the African Humid Period. This file contains long-chain n-alkanes carbon and hydrogen isotopic composition. Isotopic compositions are given as δ13C and δD for carbon and hydrogen, respectively. These data were collected using GC-IRMS. Uncertainties were calculated based on duplicate measurements of each sample. When the concentration of the sample did not allow duplicate measurement, the uncertainty corresponds to the mean value of all measured samples. The carbon isotopic compositions are corrected for Suess effect. We provided both uncorrected δD values(δDuncorr) and δD values corrected for vegetation change (δDcorr). Correction methods are presented in detail in the associated article.
Supplement to:
Schaaff, Valentine; Grossi, Vincent; Makou, Matthew; Garcin, Yannick; Deschamps, Pierre; Hamelin, Bruno; Kiahtipes, Christopher Albert; Sebag, David; Ngounou Ngatcha, Benjamin; Ménot, Guillemette (in review): Sensitivity to climate and vegetation dynamics of a peatland record from Central Cameroon during the African Humid Period. Quaternary Science Reviews
Funding:
Coverage:
Latitude: 7.135000 * Longitude: 13.690000
Date/Time Start: 2019-02-01T00:00:00 * Date/Time End: 2019-02-01T00:00:00
Minimum DEPTH, sediment/rock: 0.100 m * Maximum DEPTH, sediment/rock: 5.900 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Schaaff, Valentine | Geocode | |
| 2 | AGE | Age | ka BP | Schaaff, Valentine | Age, 14C calibrated | Geocode |
| 3 | n-Alkane C29, δ13C | C29 δ13C | ‰ PDB | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | |
| 4 | n-Alkane C29, δ13C, uncertainty | C29 δ13C unc | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | Based on duplicate analyses. Uncertainty 2*∆/√2 | |
| 5 | n-Alkane C31, δ13C | C31 δ13C | ‰ PDB | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | |
| 6 | n-Alkane C31, δ13C, uncertainty | C31 δ13C unc | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | Based on duplicate analyses. Uncertainty 2*∆/√2 | |
| 7 | n-Alkane C33, δ13C | C33 δ13C | ‰ PDB | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | |
| 8 | n-Alkane C33, δ13C, uncertainty | C33 δ13C unc | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | Based on duplicate analyses. Uncertainty 2*∆/√2 | |
| 9 | δ Deuterium, n-alkanes, C29 | δD n-alkanes C29 | ‰ | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | Uncorrected |
| 10 | δ Deuterium, n-alkanes, C29, uncertainty | δD n-alkanes C29 unc | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | Uncorrected - based on duplicate analyses. Uncertainty 2*∆/√2. | |
| 11 | δ Deuterium, n-alkanes, C31 | δD n-alkanes C31 | ‰ | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | Uncorrected |
| 12 | δ Deuterium, n-alkanes, C31, uncertainty | δD n-alkanes C31 unc | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | Uncorrected - based on duplicate analyses. Uncertainty 2*∆/√2. | |
| 13 | δ Deuterium, n-alkanes, C33 | δD n-alkanes C33 | ‰ | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | Uncorrected |
| 14 | δ Deuterium, n-alkanes, C33, uncertainty | δD n-alkanes C33 unc | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | Uncorrected - based on duplicate analyses. Uncertainty 2*∆/√2. | |
| 15 | δ Deuterium, n-alkanes, C29 | δD n-alkanes C29 | ‰ | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | Corrected |
| 16 | δ Deuterium, n-alkanes, C29, uncertainty | δD n-alkanes C29 unc | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | Corrected - based on duplicate analyses. Uncertainty 2*∆/√2. | |
| 17 | δ Deuterium, n-alkanes, C31 | δD n-alkanes C31 | ‰ | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | Corrected |
| 18 | δ Deuterium, n-alkanes, C31, uncertainty | δD n-alkanes C31 unc | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | Corrected - based on duplicate analyses. Uncertainty 2*∆/√2. | |
| 19 | δ Deuterium, n-alkanes, C33 | δD n-alkanes C33 | ‰ | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | Corrected |
| 20 | δ Deuterium, n-alkanes, C33, uncertainty | δD n-alkanes C33 unc | Schaaff, Valentine | Gas chromatography combustion isotope ratio mass spectrometery (GC-C-IRMS), Agilent Technologies 7890B, coupled to an Isoprime visION IRMS via an Isoprime GC-5 combustion interface (Elementar) | Corrected - based on duplicate analyses. Uncertainty 2*∆/√2. |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1268 data points
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Datasets with similar metadata
- Schaaff, V; Grossi, V; Makou, M et al. (2025): General lipid biomarker from the NGaoundaba peat deposit (Tropical Africa) covering the Holocene. https://doi.org/10.1594/PANGAEA.979862
- Schaaff, V; Grossi, V; Makou, M et al. (2025): Branched glycerol dialkyl glycerol tetraether (brGDGTs) from the NGaoundaba peat deposit (Tropical Africa) covering the Holocene. https://doi.org/10.1594/PANGAEA.979861
- Schaaff, V; Grossi, V; Makou, M et al. (2025): Raw pollen counts from the NGaoundaba peat deposit (Tropical Africa) covering the Holocene. https://doi.org/10.1594/PANGAEA.979864