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Swiss Journal of Geosciences
Fig. 5 | Swiss Journal of Geosciences

Fig. 5

From: A laboratory approach for the calibration of seismic data in the western part of the Swiss Molasse Basin: the case history of well Humilly-2 (France) in the Geneva area

Fig. 5

The preliminary petrographical features of Permo-Carboniferous sediment (sample HU27; depth: 3037.45 m) including documentation of very coarse and partially dissolved detrital polycrystalline quartz grains (PQz) and muscovite (Ms). Stress resulted in the deformation of quartz grains into domains with slightly different extinction angles (left image; a). The Kaolinization of K-feldspar is occurring to form the clay cement for pore-filling and grains coating of the component grains; QEMSCAN analysis (right image; b). Minerals with volume < 0.5% were not mentioned

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