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Fig. 4 | Geothermal Energy

Fig. 4

From: How do the geological and geophysical signatures of permeable fractures in granitic basement evolve after long periods of natural circulation? Insights from the Rittershoffen geothermal wells (France)

Fig. 4

Correlation between the mineralogy observed in cores (left) and the mineralogy observed in cuttings (right), defining the several granitic alteration facies (middle). The conceptual fracture zone architecture and its corresponding alteration grades is not at scale and links mineralogy observed in cores with the mineralogy observed in cuttings (middle) (Genter et al. 2000)

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