Supplementary material

Fig. S1. N-S seismic composite line (82-BUZ-11, 2005-Rontignon-Lacq-Merge, 82-SVG-08, 82-SVG-008, 82 SVG-03, Pecorade and AG1-V9 seismic lines provided by Total, R&D) across the Western Pyrénées as well as the location of the different used wells (at the top). Line drawing and geological interpretation of the seismic composite line with all tectono-stratigraphic units presented in the paper (at the bottom).

Table S1. R_o values from the Les Cassières-2 borehole and estimated temperatures calculated with the formulas provide by Barker and Pawlewicz (1994).

Table S2. R_o values from the Bellevue-1 borehole and estimated temperatures calculated with the formulas provide by Barker and Pawlewicz (1994).

Table S3. R_o values from the Orthez-102 borehole and estimated temperatures calculated with the formulas provide by Barker and Pawlewicz (1994).

Table S4. All R_o data used to build maps of spatial distribution of thermal maturity of organic matter by each tectonostratigraphic unit.

Table S5. RSCM peak temperatures from this study measured in the Pyrenean-Cantabrian belt. The parameters RA1_Lahfid (Lahfid et al., 2010) and R2_Beyssac (Beyssac et al., 2002) are used to estimate temperatures <320 and >330 °C, respectively. RA1_Lahfid, R2_Beyssac and T are expressed in terms of mean values and SD of all the data obtained for each of the 208 samples from the whole Pyrénées. The total number of spectra and the number of used spectra is detailed. Standard errors (SE) are given for all the temperatures (SD divided by the square root of the number of measurements).

© M. Ducoux et al., Published by EDP Sciences 2021