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Geothermal Energy

Science – Society – Technology

Fig. 9 | Geothermal Energy

Fig. 9

From: The Muschelkalk aquifer of the Molasse basin in SW-Germany: implications on the origin and development of highly saline lithium-rich brines in calcareous hydrothermal reservoirs

Fig. 9

Ne/He ratio versus air-normalized He isotopic composition of shallow, low-mineralized Muschelkalk samples Tuttlingen (TDS = 1.1 g kg−1) and Benken (TDS = 2.4 g kg−1). Showing the mixing relations between the different He sources mantle, crust (crystalline basement), air or air-saturated water (ASW). Data source: Traber et al. (2002) and Nagra (2001)

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