| [Exploration methods]@ETEM ECSAMT EVLF Esubsurface radar |
 Groundwater exploration by TEM (Vietnam) |
 FaultsEfractured zone exploration by VLF@ |
 Geothermal exploration by CSAMT @ |
| [Objectives of the surveys] |
| ¡Resources survey: minerals, groundwater, geothermal |
| ¡Foundation evaluation: dam sites, tunnels, embankments |
| ¡Natural hazards prevention: faults, landslides, underground cavities |
| ¡Environment survey: soil pollution, groundwater pollution |
| An example of surveys |
 Resistivity profile (TEM, in-loop configuration, Tx loopF20m~20m) |
 |