Resistivity Studies

Many measurement arrays were developed, which consist at least two main components: a pair of current electrodes (AB) and pair of electrode potential (MN). During surveys are measured:

• current in the power supply circuit AB,
• potential in the measuring circuit MN,
• size of the measuring system.

Commonly used in electrical resistivity measurement techniques:

• resistivity tomography 2D (ERT, resistivity imaging),
• vertical electrical sounding 1D (VES),
• resistivity profiling 1D.

Selection of a particular methodology and measuring system depends on the local geological structure of the object and its location.

The final result is the geological-geophysical interpretation of engineering studies.

GeoSpectrum Resistivity tomography ERT cross-section

The results of resistivity for the soil contamination evaluation

Resistivity method (geoelectric) using the above technique is commonly used to:

• determine the ground and water conditions,
• recognition of the geological structure in order to locate the areas of occurrence of groundwater,
• post-minig voids location,
• control the effectiveness of backfilling of voids and loosened the ground in areas of shallow mining,
• location of the water table, aquifers and groundwater,
• faults location,
• determine the areas of hydraulic breaks in flood embankments,
• determine the range of mineral and rock deposits,
• range of detection of contamination / pollution of soil and groundwater,
• determine the boundaries between freshwater and saltwater,
• determining the direction, speed and volume flow of water,
• determining the location of the prospective areas of shots and well boreholes in aquifers,
• location of buried metal objects,
• archaeological studies.