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Prediction of local ore recoveries and ore-waste ratios at the silver bell uranium mine |
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| Authors: | R Froidevaux and A G Journel |
| Institution: | (1) David S. Robertson & Associates, M5H 2M7 Toronto, Canada;(2) Department of Applied Earth Sciences, Stanford University, 94305 Stanford, California, USA;(3) Metals Division, Union Carbide Corporation, Grand Junction, Colorado, USA |
| Abstract: | Geostatistical estimation techniques were customized to allow forecasting of production figures at the Silver Bell uranium mine (Uravan District).Surface drill hole data were used to provide a block model of kriged estimators of average uranium grades. Figures for recoverable ore grade and the ore-waste ratio are then deduced from regressive curves previously obtained from underground information and production data. Cross-validations of the entire model were performed and were found positive. |
| Keywords: | geostatistics uranium production forecast |
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