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Fig. 4 | Geothermal Energy

Fig. 4

From: Detailed descriptions of the lower-middle Triassic and Permian formations using cores and gamma-rays from the EPS-1 exploration geothermal borehole (Soultz-sous-Forêts, Upper Rhine Graben, France)

Fig. 4

Complete EPS-1 chronostratigraphic log from the middle Muschelkalk to the Variscan basement in front of the gamma-ray log acquired in the borehole. The limits between each formation are given jointly by the geological- and the GR log. Figure 2 (see preceding) represents the detail of the middle and lower Muschelkalk and upper Buntsandstein. Figure 8 represents the detail of the upper part of the Couches de Trifels formation. The violet arrow represents the occurrences of gypsum (same legend as in Fig. 2)

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