GRM had quite an interesting project at the Terrafame mine in Sotkamo.

We utilized the Electrical Resistivity Imaging (ERI) method on the bioleaching heaps to delineate and characterize the flow/seepage of the conductive pregnant leach solution (PLS) through the heaps.

This new data assists on the optimization of the multi-lift process.

In other industrial environments, the method also helps delineating horizontal and vertical changes to lithology, sediment size, permeability, soil moisture as well as phreatic surfaces.