Fig. 5From: The deep Basel-1 geothermal well: an attempt assessing the predrilling hydraulic and hydrochemical conditions in the basement of the Upper Rhine GrabenEvaluation of pressure decline after the injection test (Fig. 3) using the HORNER-plot method (Horner, 1951), with t = mean injection duration with Q = 9.94 L min−1 (injection rate of the last injection step) and t’ = recovery timeBack to article page