5.6 For each of the subsurface models (a)-(c), sketch an appropriate apparent resistivity curve on the designated graph. The general shape of the curve is what is important. Don't use RESIST to generate the curves; rather, base your curves on what you know about current penetration, current density, and measured resistivities.
(a)
Layer Thickness (m) Resistivity (Ω-m)
1 1 100
2 5 10
3 5 100
4 Infinite 1
(b)
Layer Thickness (m) Resistivity (Ω-m)
1 10 100
2 10 10
3 Infinite 100
(c)
Layer Thickness (m) Resistivity (Ω-m)
1 5 1
2 10 100
3 5 1
4 Infinite 100
