A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Descriptive review; three bucket type dredges and one dragline dredge have changed from sluice boxes and riffles to placer jigs for improving gold recovery; details of jigging operation; flow sheet of De Lamar plant, in Silver City district; dragline boats in Idaho have not found satisfactory method to handle boulders, except to avoid getting them in boat; notes on other items of practice.
Descriptive review; three bucket type dredges and one dragline dredge have changed from sluice boxes and riffles to placer jigs for improving gold recovery; details of jigging operation; flow sheet of De Lamar plant, in Silver City district; dragline boats in Idaho have not found satisfactory method to handle boulders, except to avoid getting them in boat; notes on other items of practice.
Recent developments in Idaho dredging
Min Congress J
Kennedy, F.A. (author)
1940
3 pages
Article (Journal)
English
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