INDUCED POLARIZATION (Resistivity – IP RES)
Detection of metallic-luster sulfide concentrations (copper porphyry, gold-bearing veins or structures).
Location of metallic deposits (high-/low-sulfidation epithermal, skarn).
Detection of contacts and structures based on resistivity contrasts (conductive and resistive).
Detection of disseminated or vein-type sulfides surrounding semi-massive deposits.
Lithological characterization of the subsurface (Geotechnical, Mineral Exploration, and Groundwater).
Delineation of alteration zones (hydrothermal, siliceous) and structural control of deposits (copper porphyry).
Location of fracture systems and geological faults.
Determination of clay content.
Aquifer studies: depth, thickness, properties (salinity).
Resistivity can be used interchangeably to delineate conductive bodies (porphyries) or resistive bodies (silicification).
Applications in Mineral Exploration
The presence of radioactive substances in rocks can be used in the search for mineral deposits containing uranium, thorium, and potassium.
It is applied in geological mapping and the identification of outcropping bodies with economically significant radioactive minerals, which are indicative of various types of intrusive rocks, as well as the presence of potassic and hydrothermal alteration.
Current injection curves (left) and voltage curves (right) in an Induced Polarization test.
3D Pole–Dipole Offset Configuration.
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