Lipid biomarkers as pH proxies of sediment core NGBA19

DOI

Here, we present data on lipid biomarkers (branched glycerol dialkyl glycerol tetraethers (brGDGTs) and hopanes) from the NGaoundaba peat deposit (NE Cameroon - Adamawa Plateau - N7.135° E13.690°) spanning the last 10 ka. The data comprise concentrations of hopanes, C31 hopane carbon isotopic composition (when available), hopane isomer ratio and CBTpeat ratio as well as pH reconstructions based on empirical calibration from Naafs et al. 2017 and Inglis et al. 2018. The core was collected on February 2019 and named NBGA19. The 6-meter-long core was sub-sampled at 2.5-cm intervals. 73 samples were analyses. Lipid biomarkers were extracted using MARS 6 CEM microwave extraction system and then separated by column chromatography on silica gel into three fractions. Data were obtained using HPLC-APCI-MS (Agilent 1200) (LGL-TPE, ENS de Lyon, France) or GC-MS (Agilent) and GC-IRMS (Agilent 9870B GC coupled to an isoprime visION IRMS via an isopirme GC-5 combustion interface Elementar) (LGL-TPE Université Claude Bernard Lyon 1, France). Carbon isotopic compositions was calibrated using a reference CO2 gas reported to VPDB scale.

Identifier
DOI https://doi.org/10.1594/PANGAEA.963887
Related Identifier References https://doi.org/10.1016/j.gca.2024.03.034
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.963887
Provenance
Creator Schaaff, Valentine ORCID logo; Grossi, Vincent; Makou, Matthew; Garcin, Yannick (ORCID: 0000-0001-8205-494X); Deschamps, Pierre ORCID logo; Sebag, David ORCID logo; Ngounou Ngatcha, Benjamin; Ménot, Guillemette ORCID logo
Publisher PANGAEA
Publication Year 2024
Funding Reference Agence Nationale de la Recherche https://doi.org/10.13039/501100001665 Crossref Funder ID ANR-18-CE01-0005 ANR TAPIOCA
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Bundled Publication of Datasets; Collection
Format application/zip
Size 3 datasets
Discipline Earth System Research
Spatial Coverage (13.690 LON, 7.135 LAT); NGaoundaba peatland, Northeastern Cameroon