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Despite being more than 60 years old now, the following video from the National Film Board of Canada is a useful reference.
Description
Instead of pick and shovel, the modern prospector employs all the resources of science to look for buried treasure. Aerial surveys, airborne magnetometers, instruments to measure the breadth and depth of ore bodies--with these the prospector can provide data to the company geologist to pinpoint the most promising drilling locations.
1959, 14 min 27 s
Directed by
Jean-Yves Bigras
Produced by
Tim Wilson
Production Agency
National Film Board of Canada