VES & Electrical Tomography - Resistivity Method

Delineating orebodies, mineralized domains, tectonic fault networks, water-bearing aquifers, and structural geological targets

Measuring apparent rock resistivity for vertical sounding and high-precision 2D/3D visualization of subsurface geological structures.

What Subsoil User Challenges Are Solved at the VES & ERT Stage?

Difficulty in pinpointing orebodies and mineralized domains

Delineates conductive orebodies, alteration zones, and structural faults — even when targets exhibit weak surface signatures or lack exposed expressions.

Insufficient spatial resolution of subsurface frameworks

Constructs high-precision 2D/3D geo-electrical inversion sections, guaranteeing reliable deep structural interpretation across complex geological domains.

High operational risks in drill planning

Evaluates subsurface geological conditions prior to drilling, reducing speculative exploration holes by accurately targeting conductive anomalies.

Complex site conditions impairing data accuracy

Deploys noise-tolerant profiling arrays capable of operating in challenging geological environments — from karst terrains to active tectonic zones.

How Does the VES & ERT Process Work?

We deploy DC resistivity methods to obtain high-precision subsurface data without drilling.

The execution workflow consists of four structured phases:

Array Setup — electrode arrays are deployed along specified surface profiles to establish electrical coupling with subsurface strata;
Current Injection & Response Recording — direct current is injected into the ground, encountering varying resistivity responses across rock units with differing mineralization, moisture content, and density. Receiving electrodes measure the resulting potential differences;
Data Processing — observed apparent resistivity values are processed using specialized inversion software to construct continuous vertical and horizontal geo-electrical sections;
Geological Interpretation — geophysical specialists interpret inversion models to map structural targets: orebodies, mineralized domains, fault lines, aquifers, and lithological contacts.

The Result: The client receives high-resolution geo-electrical sections and 2D/3D inversion models, enabling accurate targeting of subsurface anomalies and informed decision-making prior to drill campaign execution.