Induced polarization

 

The method of induced polarization (IP) belongs to the electrochemical geophysical methods. It uses the electrochemical phenomena occurring in the boundary layer between the solid and liquid phases of the environment.

In applying electrode system used in the methods of resistance, the free electric charge carriers (electrons and ions) in the rock environment do not move freely, but they are faced with various obstacles (ore minerals, clay minerals, blind and narrow pores and others), which cause that around the obstacles accumulation of electric charge develops.

This accumulation has become a source of electric fields; add to the electric field generated by an electrode system. The aim of the induced polarization method is then measurement of the electric field generated by electric charge accumulations. Obviously, the more causes that give rise to accumulations are, the greater will be the electric field.

 

The largest causes include deposits of ore minerals, mainly sulfide, iron ore, vein but also stratiform type.

IP method thus locates mines objects with electron conductivity, reliably excludes non-metallic anomaly of conductivity associated with tectonic lines, and water-bearing zones with increased power of deposits. According to the power of the apparatus and the size of the examined object, it is possible to search the deep-seated ore bodies by this method.

IP