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sonic drilling

sonic drilling

sonic drilling

(OP)
Anyone out there with experience in sampling a gold placer using a sonic drill? My concern is the effectiveness of sample recovery, especially if the gold particles are very fine. Thanx

RE: sonic drilling

Sample recovery with sonic drilling in fine grained sediments is no worse than with other conventional drilling methods.  Sometimes the use of a "Sand Catcher" or similar devise is common in the core barrel if core recovery is a problem in unconsolidated materials.

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