7 Contents 5.6 Conclusions 111 Appendix: Static corrections Acknowledgements 116 References 116 Chapter 6 • Borehole electrical panels: an experiment 119 M. Moreau, P. Brunel and J.-L. Mari Material and method 120 Acquisition 123 Geological Interpretation 125 Summary 129 Conclusions 130 References 131 Chapter 7 • Hydrogeological flow logging and dye tracer tests on the Hydrogeological Experimental Site of Poitiers University (France) 133 A. Boulais, T. Gaillard and H. Geairon Introduction 133 Borehole flow logging acquisition 135 Principle of flow logging 135 Downflow and upflow in the borehole 136 Dynamic flow logging 136 Flow logging with pumping in MP6 (crossed dynamics MP6) 141 Tracer tests 144 Tracer test protocol 144 Results 144 Conclusion and interpretation of pathways in karst horizons 148 References 149 Chapter 8 • Hydro-stratigraphic study of the Hydrogeological Experimental Site of Poitiers, France 151 T. Gaillard Objectif and method 151 Aquifer stratigraphy of the HES 152 Stratigraphic context 152 Data available 153 Lithostratigraphy of the HES 154
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