Publication Date:
2024-06-12
Description:
This dataset contains the relative abundance of isoprenoidal and branched glycerol dialkyl glycerol tetraethers (GDGT) components, in addition to various indexes used to reconstruct the mean annual air temperature and pH, of the Canroute peatland sequence (Massif Central, France) for the last 15,000 years cal BP. 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 in hexane-propanol (98.2:0.2, v/v) by high-performance liquid chromatography with mass spectrometry (HPLC-MS). 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). This data was used to better understand the biological origin of the components and reconstruct the environmental and paleoclimate of the Canroute peatland sequence.
Keywords:
AGE; Age, radiocarbon; Calculated according to Blaga et al. (2009); Calculated according to De Jonge et al. (2014); Calculated according to De Jonge et al. (2021); Calculated according to Schouten et al. (2012); CAN02; Community Index; Crenarchaeol isomer, fractional abundance; Cyclisation index of 6-methyl branched glycerol dialkyl glycerol tetraether; DEPTH, sediment/rock; France; GDGT; High Performance Liquid Chromatography - Mass spectrometry (HPLC-MS); Holocene; Index; Isomer ratio; Isoprenoid acyclic glycerol dialkyl glycerol tetraether, fractional abundance; Isoprenoid acyclic glycerol dialkyl glycerol tetraether/Crenarchaeol ratio; Isoprenoid dicyclic glycerol dialkyl glycerol tetraether, fractional abundance; Isoprenoid glycerol dialkyl glycerol tetraether, 4, fractional abundance; Isoprenoid monocyclic glycerol dialkyl glycerol tetraether, fractional abundance; Isoprenoid tricyclic glycerol dialkyl glycerol tetraether, fractional abundance; Methylation index of 5-methyl branched glycerol dialkyl glycerol tetraether; Methylation index of 5-methyl branched glycerol dialkyl glycerol tetraether, Ia, fractional abundance; Methylation index of 5-methyl branched glycerol dialkyl glycerol tetraether, Ib, fractional abundance; Methylation index of 5-methyl branched glycerol dialkyl glycerol tetraether, Ic, fractional abundance; Methylation index of 5-methyl branched glycerol dialkyl glycerol tetraether, IIa, fractional abundance; Methylation index of 5-methyl branched glycerol dialkyl glycerol tetraether, IIb, fractional abundance; Methylation index of 5-methyl branched glycerol dialkyl glycerol tetraether, IIc, fractional abundance; Methylation index of 5-methyl branched glycerol dialkyl glycerol tetraether, IIIa, fractional abundance; Methylation index of 5-methyl branched glycerol dialkyl glycerol tetraether, IIIb, fractional abundance; Methylation index of 5-methyl branched glycerol dialkyl glycerol tetraether, IIIc, fractional abundance; Methylation index of 6-methyl branched glycerol dialkyl glycerol tetraether, IIa, fractional abundance; Methylation index of 6-methyl branched glycerol dialkyl glycerol tetraether, IIb, fractional abundance; Methylation index of 6-methyl branched glycerol dialkyl glycerol tetraether, IIc, fractional abundance; Methylation index of 6-methyl branched glycerol dialkyl glycerol tetraether, IIIa, fractional abundance; Methylation index of 6-methyl branched glycerol dialkyl glycerol tetraether, IIIb, fractional abundance; Methylation index of 7-methyl branched glycerol dialkyl glycerol tetraether, IIa, fractional abundance; Methylation index of 7-methyl branched glycerol dialkyl glycerol tetraether, IIb, fractional abundance; Methylation index of 7-methyl branched glycerol dialkyl glycerol tetraether, IIc, fractional abundance; Methylation index of 7-methyl branched glycerol dialkyl glycerol tetraether, IIIa, fractional abundance; Methylation index of 7-methyl branched glycerol dialkyl glycerol tetraether, IIIb, fractional abundance; peat core; pH; Sample code/label; Southern France; Sum branched glycerol dialkyl glycerol tetraether, IIIa/Sum Branched glycerol dialkyl glycerol tetraether, IIa ratio
Type:
Dataset
Format:
text/tab-separated-values, 2550 data points
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