Rezistivitati aparente
In tabelul atasat se afla o estimare a rezitivitatii aparente a diferitelor materiale si roci.
| Material sau roca | Intervalul de rezistivitate [Ωm] | |
| Quart | 300 | 1,000,000 |
| Sare gema | 30 | 100,000 |
| Antracit | 1 | 200,000,000 |
| Lignit | 10 | 200 |
| Granit | 300 | 1,000,000 |
| Granit (cu aport de apa) | 30 | 500 |
| Sienit | 100 | 1,000,000 |
| Diorit | 10,000 | 100,000 |
| Gabbro | 1,000 | 1,000,000 |
| Bazalt | 10 | 13,000,000 |
| Sist (calcaros si mica) | 20 | 10,000 |
| Sist (grafitos) | 10 | 100 |
| Ardezie | 600 | 40,000,000 |
| Marmura | 100 | 250,000,000 |
| Gresie consolodata | 20 | 2,000 |
| Conglomerat | 2,000 | 10,000 |
| Gresie | 1 | 740,000,000 |
| Calcar | 50 | 10,000,000 |
| Dolomit | 350 | 5,000 |
| Marna | 3 | 10 |
| Argila | 1 | 100 |
| Aluviuni si nisip | 10 | 800 |
| Morena | 10 | 5,000 |
| Gresie Sherwood | 100 | 400 |
| Sol (40% clay) | 8 | 10 |
| Sol (20% clay) | 33 | 35 |
| Sol de suprafata | 250 | 1,700 |
| Argila de Londra | 4 | 20 |
| Argila Liasica | 10 | 15 |
| Argila foarte uscata | 15 | 35 |
| Argila (uscata) | 50 | 150 |
| Namol | 20 | 60 |
| Argila cu carbune | 50 | 55 |
| Carbune mediu | 100 | 150 |
| Creta umeda | 50 | 150 |
| Cocs | 1 | 8 |
| Pietris umed | 1,400 | 2,000 |
| Pietris uscat | 80 | 100 |
| Nisipuri Quaternare (recente) | 50 | 100 |
| Cenusa | 4 | 5 |
| Colliery spoil | 10 | 20 |
| Pulverised fuel ash | 50 | 100 |
| Laterite - roca | 800 | 1,500 |
| Laterite - sol | 120 | 750 |
| Sol nisipos uscat | 80 | 1,050 |
| Argila nisipoasa/nisip argilos | 30 | 215 |
| Nisip si pietris | 30 | 225 |
| Depozite nesaturate | 30 | 100 |
| Depozite saturate | 15 | 30 |
| Ape acide de turba | 100 | 110 |
| Ape acide de mina | 20 | 25 |
| Apa de precipitatii | 20 | 100 |
| Depozite de deseuri | 10 | 50 |
| Ghiata glaciara zona temperata | 2,000,000 | 120,000,000 |
| Ghiata glaciara zona polara | 50,000 | 300,000 |
| Permafrost | 1,000 | 10,000 |
| Based si Telford (1990) cu date aditionale de la McGinnis si Jensen (1971), Reinolds (1987), Reynolds si Paren (1980,1984) si proiecte proprii. | ||
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