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Geothermal Energy

Science – Society – Technology

Fig. 8 | Geothermal Energy

Fig. 8

From: The impact of hydrothermal alteration on the physiochemical characteristics of reservoir rocks: the case of the Los Humeros geothermal field (Mexico)

Fig. 8

Selected trace and REE element concentrations of the reservoir and outcrop samples in (a–h). i Nb/La vs. Sr/Nb plot after Carrasco-Núñez et al. (2017b). Chemical indices such as (j) CIW, (k) CIA and (l) PIA values were applied to investigate the relationship between the intensity of alteration and the physiochemical changes of the rocks

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