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Fig. 2 | Geothermal Energy

Fig. 2

From: New results on the gravity monitoring (2014–2017) of Soultz-sous-Forêts and Rittershoffen geothermal sites (France)

Fig. 2

The Soultz-sous-Forêts (yellow circles) and Rittershoffen (blue circles) gravity networks. The station codes are written in red. In particular, the stations 50 and 23 (red circles) are, respectively, the reference station of the Soultz-sous-Forêts and Rittershoffen networks. The two continuous GNSS stations are indicated in green. The projection of GRT1, GPK3, GPK4 injection wells and GRT2 and GPK2 production wells on the surface is represented by a blue line. The red lines are their open-hole trajectories. STJ9 in the inset indicates the position of the gravity observatory of Strasbourg J9

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