Blog articles about the mining and geophysics industries
September 13, 2018
What Is Electromagnetic Geophysical Prospecting?
The main goal of electromagnetic geophysical prospecting in the mining industry, which is based on variations in relative subsurface conductivity, is to detect deposits that conduct electricity. These formations are detected using the principle of induction, as they would be by a current transformer.
The usual process is to put an transmitter on the surface. It produces ...
Induced Polarization (IP) is used to measure the chargeability of the subsurface. The electrochemical effect, or IP Effect, can be influenced by many factors; grain size, surface area, types of minerals present (metallics vs. silicates vs. clays), type and mobility of ions within the pore fluid.
Disseminated mineral grains, for example, have a larger overall surface area providing a ...
Aeromagnetic geophysical surveys consist of measuring the intensity of the geomagnetic field in order to detect local magnetic variations from the rocks. The resulting aeromagnetic data is generally used to support the mapping of geological formations and accidents that have effects on these in order to directly detect any concentrations of magnetic minerals.
From InfiniTEM to InfiniTEM XL
MEETING THE DEPTH & OVERBURDEN CHALLENGE
More power for deeper results
4x dipole moment over conventional technology
Rapid ground-based EM reconnaissance
Increased exploration depth and distance along strike ...