Table 4 Depth ranges of impermeable strata beneath and around whole mining block
From: Prediction of sea water intrusion for mining activity in close precincts of sea shore
S. N. | Site no. | Depth range (m) | Lithology | Remarks |
|---|---|---|---|---|
1 | G1 | 100-140 | Basalt | Impermeable |
2 | G21 | 170-200 | Basalt | Impermeable |
3 | G24 | 160-200 | Basalt | Impermeable |
4 | G20 | 100-130 | Basalt | Impermeable |
5 | G25 | 130-220 | Basalt | Impermeable |
6 | G19 | 120-130 | Clay | Impermeable |
7 | G17 | 180-240 | Clay | Impermeable |
8 | G15 | 110-200 | Clay | Impermeable |
9 | G47 | 130-150 | Clay | Impermeable |
10 | G11 | 80-150 | Clay | Impermeable |
11 | G10 | 90-140 | Sandy horizon | Semi impermeable |
12 | G12 | 130-150 | Clay formation | Impermeable |
13 | G49 | 120-150 | Massive basalt | Impermeable |
14 | G9 | 150-180 | Basalt | Impermeable |
15 | G51 | 80-130 | Basalt | Impermeable |
16 | G27 | 210-240 | Sandy clay | Semi impermeable |