Research Article
Rock Type Effects on Radio Signal Attenuation
Table 1
Resistivity ranges for the different rock types [
21].
| | Rock type | Resistivity median (Ωm) | Resistivity min (Ωm) | Resistivity max (Ωm) | Mode(s) (Ωm) | Range(s) (Ωm) | Std. dev (Ωm) |
| | VGN | Veined gneiss | 22800.00 | 20 | 2042772 | 2-3 k
6-8 k
20-25 k
60-100 k
250 k | 4-40 k
60-100 k | 151097 |
| | PGR | Pegmatitic granite | 16300.00 | 188 | 472170 | 6-8 k
16-20 k
25-30 k | 3-30 k | 145948 |
| | DGN | Diatextic granite | 15500.00 | 9.46 | 942538 | 3-4 k
4-5 k
10-12 k
20-25 k
40-50 k | 5-65 k | 106169 |
| | SGN | Stromatic gneiss | 18800.00 | 2459 | 623413 | | | |
| | MGN | Mica gneiss | 20400.00 | 358 | 666192 | 4-5 k
20-25 k
60-100 k | 3-30 k
60-200 k | 110824 |
| | QGN | Quartz gneiss | 55800.00 | 10600 | 475925 | 10-15 k
20-160 k
250-320 k | 10-500 k | 183258 |
| | KFP | K-feldspar porphyry | 5730.00 | 3500 | 30300 | | | |
| | MFGN | Mafic gneiss | 18900.00 | 534 | 465740 | 1-1,5 k
6-10 k
20-100 k | 6-100 k | 108686 |
| | TGG | Tonalitic granitic Granodioritic gneiss | 24400.00 | 2190 | 460063 | 10-12 k
20-32 k | 6-40 k | 102174 |
| | MDB | Metadiabase | 113000.00 | 16200 | 463038 | | | |
| | All | | 19366.50 | 9.46 | 2042772 | 6-8 k
16-32 k | 4-100 k | 118614 |
| | Altered | | 12386.50 | 9.46 | 2042772 | 2-3 k
5-6 k
10-12 k
25-32 k
40-50 k | 5-50 k | 143048 |
| | Deformed | | | | | 1-2 k
5-6 k | 4-30 k | 88168 |
|
|
