Conference Proceedings
Estimation and Statement of Mineral Reserves, Sydney
Conference Proceedings
Estimation and Statement of Mineral Reserves, Sydney
A Case Study In Ore Reserve Procedures At Mount Lyell
The case study is based on the largest ore deposit at Mt. Lyell; the Prince Lyell deposit, comprising a regular lensoid mass of dissemina- ted and vein pyrite-chalcopyrite mineralisation. Reserve estimation employs conventional techniques, based on diamond drill hole and relevant development sampling data. Probable ore reserves are estimated using the contouring (isoline) method an longitudinal projections for ore thickness and accumulation (m %Cu) at a '0.8% Cu' cutoff. Final stope and pillar res- erve estimates (proved ore) are derived from designed ring tonnages and contoured accumula- tion for individual mining units, following more intensive sampling. Systematic grade control procedures have been adopted and individual stopes and pillars reconciled against mill production. The proved ore estimates have been found to com- pare favourably with the reconciled production.
Contributor(s):
K O Reid, J Rowe
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- Published: 1979
- PDF Size: 1.104 Mb.
- Unique ID: P197902001