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SYMPOSIUM ON THE USE OF BOREHOLE DATA IN GEOPHYSICAL EXPLORATION*
A THREE‐COMPONENT MAGNETOMETER FOR SMALL DRILL‐HOLES AND ITS USE IN ORE PROSPECTING
- Source: Geophysical Prospecting, Volume 7, Issue 2, Apr 1959, p. 183 - 195
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- 27 Apr 2006
Abstract
Abstract
A 3‐component flux gate magnetometer has been built for use in 1½ inch drill‐holes. It has an accuracy of 1 mgs. It requires 2–3 men to operate it and they can take measurements in up to 3 100 metre holes in one day. The instrument has definitely proved its worth in describing the‘general’ geology of an ore‐body, and it is now used on a routine basis.