Botté, Paul; Licht, Alexis; Jourdan, Anne-Lise; Montheil, Leny; Demory, François; Kaya, Mustafa Y; Ocakoğlu, Faruk; Akkiraz, Mehmet Serkan; İbilioğlu, Deniz; Coster, Pauline; Métais, Grégoire; Raynaud, Benjamin; Beard, K Christopher (2026): Clumped isotope data from pedogenic carbonates of late Eocene - early Oligocene continental sediments from Büyükteflek (Anatolia, Turkey) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.995341, In: Botté, P et al. (2026): Stable and clumped isotope data from pedogenic carbonates of late Eocene - early Oligocene continental sediments from Büyükteflek (Anatolia, Turkey) [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.995339
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Published: 2026-06-15 • DOI registered: 2026-07-14
Abstract:
This dataset contains stable and clumped isotope data obtained from pedogenic carbonates sampled across a continental sedimentary section at Büyükteflek (Anatolia, Turkey). The section spans the Priabonian and lower Rupelian stages (~37–33 Ma), including the Eocene–Oligocene Transition (EOT) and the Early Oligocene Glacial Maximum (~33.65 Ma). Clumped isotope analyses (Δ47) were performed on pedogenic carbonate to reconstruct paleotemperatures, while stable isotope measurements (δ¹³C and δ¹⁸O) were used to document paleoenvironmental and hydrological changes across the record.
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Further details:
Funding:
Coverage:
Latitude: 39.661810 * Longitude: 34.339810
Minimum SECTION, height: 249.0 m * Maximum SECTION, height: 324.0 m
Event(s):
Comment:
Clumped isotopes results contains clumped isotope measurements (Δ47) and derived paleotemperature estimates from the same samples, analysed at CEREGE (Aix-en-Provence, France).
Stable isotope analyses (δ¹³C, δ¹⁸O) were performed on 23 calcite-dominated pedogenic carbonate powders using a Thermo 253+ mass spectrometer coupled to a Thermo Kiel IV device (Dual Inlet mode) at CEREGE (Aix-Marseille University). Sample powders (80–120 µg) reacted with 105% phosphoric acid at 70°C. Values are reported relative to IAEA-603 in the V-PDB reference frame. 14 samples were selected for clumped isotope analysis (Δ47). Samples were pre-treated with 3–8% NaOCl to remove organic contamination, then analysed on the same system with an additional Porapaq cryotrap at -20°C. Δ47 values are projected onto the I-CDES90 scale using D47crunch (Daëron, 2021), pooling data from 28 sessions (inter-session repeatability: 30 ppm). Paleotemperatures are calculated using the Anderson et al. (2021) calibration. Full analytical details are provided in Supplementary Text S1 of Botté et al. (preprint).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Botté, Paul | |||
| 2 | Confidence level | Conf | Botté, Paul | |||
| 3 | SECTION, height | Section | m | Botté, Paul | Geocode – level | |
| 4 | δ13C, carbonate | δ13C carb | ‰ PDB | Botté, Paul | Isotope Ratio Mass Spectrometer (IRMS), Thermo Fisher Scientific, MAT 253 Plus; coupled with Carbonate preparation device, Thermo Fisher Scientific, KIEL IV | vs. VPDB |
| 5 | δ18O, carbonate | δ18O carb | ‰ PDB | Botté, Paul | Isotope Ratio Mass Spectrometer (IRMS), Thermo Fisher Scientific, MAT 253 Plus; coupled with Carbonate preparation device, Thermo Fisher Scientific, KIEL IV | vs. VPDB |
| 6 | Δ47, carbon dioxide clumped isotope | Δ47 | ‰ | Botté, Paul | Isotope Ratio Mass Spectrometer (IRMS), Thermo Fisher Scientific, MAT 253 Plus; coupled with Carbonate preparation device, Thermo Fisher Scientific, KIEL IV | |
| 7 | Δ47, carbon dioxide clumped isotope, standard deviation | Δ47 std dev | ± | Botté, Paul | ||
| 8 | Δ47, carbon dioxide clumped isotope, error | Δ47 e | ± | Botté, Paul | #1 | |
| 9 | Δ47, carbon dioxide clumped isotope, error | Δ47 e | ± | Botté, Paul | #2 | |
| 10 | Δ47, carbon dioxide clumped isotope, error | Δ47 e | ± | Botté, Paul | Confidence 95% | 95% CL |
| 11 | Levene test | Levene test | Botté, Paul | |||
| 12 | Δ47, calcification temperature | Δ47 calcification T | °C | Botté, Paul | Calculated according to Andreson et al. (2021) | reconstructed |
| 13 | Δ47, calcification temperature, error | Δ47 calcification T e | ± | Botté, Paul | Calculated according to Andreson et al. (2021) | #1 |
| 14 | Δ47, calcification temperature, error | Δ47 calcification T e | ± | Botté, Paul | Calculated according to Andreson et al. (2021) | #1 |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
221 data points