Several mines use the GDD SSW probe to log nickel, copper and iron sulphides in blast holes. By lowering the probe in the blast hole, a profile of the electromagnetic (EM) response is measured and obtained in real time making it useful for finding out ores content. Indeed, logged drill holes in nickel mines have demonstrated that ores content of nickel, cobalt, copper, and PGM are often proportional to the intensity of the probe EM response. Quick and inexpensive, probing a 30 m depth blast hole within 10 cm intervals will take less than 2 minutes.
Surveying a drill hole with a GDD SSW probe helps to determine the shape of the high-grade ore body within the waste rock and low grade ore. Using this tool, user will know exactly where to stop blasting thus saving time and money. The SSW probe can also be used to discover and mine pockets of rich ore that are otherwise left in place. Increase ore grade at the mill and get rid of the waste!