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sonic drilling

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jacare

Mining
Joined
Jun 28, 2005
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10
Location
US
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
 
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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