PANGAEA_995341 Clumped isotope data from pedogenic carbonates of late Eocene - early Oligocene continental sediments from Büyükteflek (Anatolia, Turkey) 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 Clumped isotope data from pedogenic carbonates of late Eocene - early Oligocene continental sediments from Büyükteflek (Anatolia, Turkey) 2026-06-15 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.995341 Investigator Paul Botté botte@cerege.fr Earth Science Sample code/label Confidence level SECTION, height δ13C, carbonate δ18O, carbonate Δ47, carbon dioxide clumped isotope Δ47, carbon dioxide clumped isotope, standard deviation Δ47, carbon dioxide clumped isotope, error Levene test Δ47, calcification temperature Δ47, calcification temperature, error geoscientificInformation Anatolia Balkanatolia Büyükteflek Buyukteflek_section clumped isotope Continental deposits Eocene-Oligocene Transition Geochemistry Outcrop sample pedogenic carbonate stable oxygen and carbon isotopes Isotope Ratio Mass Spectrometer (IRMS), Thermo Fisher Scientific, MAT 253 Plus; coupled with Carbonate preparation device, Thermo Fisher Scientific, KIEL IV Confidence 95% Calculated according to Andreson et al. (2021) Complete 39.66181 39.66181 34.33981 34.33981 access rights needed CC-BY-4.0: Creative Commons Attribution 4.0 International (License comes into effect after moratorium ends) English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

Leobener Str.

Bremen Bremen 28359 Germany online 221 data points text/tab-separated-values Clumped isotope paleotemperature estimates plotted against the Geologic Time Scale (GTS (URI: https://download.pangaea.de/reference/140192/attachments/Clumped_isotopes_on_GTS.png) Stable isotope (δ¹³C, δ¹⁸O), meteoric water δ¹⁸O, and clumped isotope (Δ47) data plotted alongside the stratigraphic log of the Büyükteflek section (URI: https://download.pangaea.de/reference/140193/attachments/stable_and_clumped_isotopes_log.png)

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. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995341"! ** 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).

https://doi.org/10.1029/2020GL092069 Calculated according to Andreson et al. (2021) PANGAEA_995339 DIF 9.4 2026-06-15 2026-09-24