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Fig. 4 | Geothermal Energy

Fig. 4

From: The Cornubian geothermal province: heat production and flow in SW England: estimates from boreholes and airborne gamma-ray measurements

Fig. 4

Survey area and airborne radiometric survey data (cut to coast). a Simplified geology based on basins identified by Leveridge and Hartley (2006). HG hangman grit (sandstone) formation, P Permian formation, BF palaeogene Bovey formation. Five outcropping granites are identified in white. b The radiometric ternary colour image obtained using the three radioelement ground concentrations

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