After this I have 4 left, Richie. LOL.
Magnetism has polarity as we all know. You can have a strong N pole or the opposite. There are new developments unknown to me now so I cannot say what was used. A magnetic survey is the easiest, cheapest and fastest survey you can do. And THeee most reliable. It measures the natural uninduced magnetic strength of the rocks you pass it over. Then you look for concentrations of both magnetic strength positives AND negatives on the same map you plot your results on. These concentrations are called anomalies. We say .. anomalies are like a h**** .. everybody has one. And some like CMKX have hundreds. These cost you a bundle to go out with men on the ground to detail them out for confirmation. Then your magnetics expert will tell you what he THINKS are the best ones. Then you bring in the diamond drill to see what is causing them .. not necessarily kimberlite either strongly magnetic or strongly non magnetic. So that too is a long process with no guarantees.
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