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Keywords: placer
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Proceedings Papers
Research on New Alaskan Mining Technology
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the International Arctic Technology Conference, May 29–31, 1991
Paper Number: SPE-22082-MS
... and scientists have begun a research program that features new technology for mining in Alaska. The program emphasizes efficient extraction of the mineral value while minimizing environmental disruption. Projects on borehole slurry mining, underground placer mining, back - filling, rock mechanics/mine design...
Proceedings Papers
Hydraulic Mining of Permafrost Placers by Boreholes
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the International Arctic Technology Conference, May 29–31, 1991
Paper Number: SPE-22083-MS
... ABSTRACT The results of investigations and commercial tests of borehole hydraulic technology and equipment for gold and tin production from frozen placers through boreholes are given in this article. The variants of mining of small and thick placers through boreholes and the description...
Proceedings Papers
Open-Cast Underground Technology of Permafrost Placer Mining in the Arctic
Available to PurchasePublisher: Society of Petroleum Engineers (SPE)
Paper presented at the International Arctic Technology Conference, May 29–31, 1991
Paper Number: SPE-22084-MS
... ABSTRACT Perennialy frozen placers at depth of 10 to 30 m may be profitably mined by combining the opencast and underground mining procedures. According to this method, the placer is at first partially mined in opencasts, and then the underground mining is used to recover the rest...
