Interpreting a rising-then-falling apparent resistivity curve from Wenner sounding data (three-layer H/K-type curve) in terms of subsurface lithology.
Apparent resistivity, rho_a = 2*pi*a*R, computed from the table: at a=5,10,15,20,25 m, rho_a is approximately 31.4, 50.3, 56.5, 50.3, and 31.4 ohm-m respectively - rising...
Full option-by-option analysis available to enrolled students.