Cumberland drill hole debris

Author Message
Roger Gelder







PostPosted: June 10, 2013 6:32 AM 

The image of the Cumberland drill hole debris shows a 1/4 width ridge on the right -hand side and a much thinner x4 spread on the left-hand side.
Is this an artefact of the drilling, ejecting the dust or is this spread due to wind?
roj




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