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Geothermal Energy

Science – Society – Technology

Fig. 9 | Geothermal Energy

Fig. 9

From: Microstructural and petrophysical properties of the Permo-Triassic sandstones (Buntsandstein) from the Soultz-sous-Forêts geothermal site (France)

Fig. 9

Backscattered scanning electron microscope (BSE) images highlighting the alteration within the first six (from boxes 84, 100, 157, 198, 248, and 299) sandstones sampled from exploration well EPS-1 at Soultz-sous- Forêts (Alsace, France): a, b Sample 84, c, d sample 100, e, f sample 157, g, h sample 198, i, j sample 248, k, l sample 299. s siderite, c clay, d dolomite, b barite, m muscovite. Each image is labelled with the box number, unit name, and sample depth

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