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Both methods are considered feasible; however, Toronto, Canada-based Yamana said it selected front caving with pillar recovery because it increases total minable ounces, reduces costs, provides significantly improved returns, allows for the expansion of resources, better addresses geotechnical constraints, and provides for a longer mine life and a higher return and value.
Yamana Completes Underground Mining Studies for Gualcamayo Anonymous Engineering and Mining Journal; Mar 2009; 210, 2; Docstoc pg. 12 Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.
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