Simple Magnetic Method for Ore Prospecting

MAGNETIC methods have been used for more than three hundred years in prospecting for magnetic ores . More recently magnetic methods have been used for finding salt domes and studying certain geological formations. A number of instruments have been developed and substantial improvements made as to their sensitiveness and accuracy.
Keywords: earth magnetic field, north pole, ore, prospector, Information, North, Ore, Ores, Permeability, Prospecting, Rock, Survey, Surveys
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