| pendugaan | |||
|
|||
| pendugaan dwikutub-datar | horizontal-dipole sounding |
| pendugaan elektris | electrical sounding |
| pendugaan geometrik | geometric sounding |
| pendugaan imbasan pusat | central induction sounding |
| pendugaan jeluk | depth sounding |
| pendugaan seismik dalam | deep seismic sounding |