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Swiss Journal of Geosciences
Fig. 10 | Swiss Journal of Geosciences

Fig. 10

From: Integrated stratigraphic, sedimentological and petrographical evaluation for CERN’s Future Circular Collider subsurface infrastructure (Geneva Basin, Switzerland-France)

Fig. 10

Wells Thônex-1 and Geo-01 depicting QEMSCAN measurements in comparison with calculated shale volume from GR log. Based on RHOB-NPHI log crossovers, the Molasse Rouge appears less permeable. Note the increased gypsum concentration in the Thônex-1 well. Gypsum content is a good indicator to distinguish between the Molasse Rouge and Grès et Marnes Gris à gypse formations. The same depth interval of these two formations suggests the delimitation of the Grès et Marnes Gris à gypse formation by the syn- and anticline systems, as indicated in Fig. 1. Remaining space in QEMSCAN column refers to other minerals

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