1. Resistivity (examples from Reynolds, 1997)

2. I (amps) = V (volts) / R (ohms) Current = Voltage /resistance R  1/area

6. Resistivity Systems OhmMapper-Geometrics Capacitive coupling Multielectrode Advanced Geophysics Inc.

8. where R =  V/I

11. Resistivity Profiling

17. Resistivity Depth Sounding

18. Electrode spacing ~ depth

19. Path Averaging

20.  z  z

28. Automated Resistivity “Imaging” Profiling + Depth Sounding

30. http://www.agiusa.com/2Dvoids.shtml

31. DNAPL and Resistivity