New Age Exploration (ASX:NAE) reported results of further technical studies on its Redmoor Tungsten-tin project in Cornwall, UK. The company has previously completed an updated inferred mineral resource estimate and exploration target for the project.
As quoted in the press release:
A preliminary mining study was recently completed by technical consultants, Mining One. The study included stope optimisation, high level underground mine design and high level capital and operating costs estimates for a bulk mining option and a high grade mining option. High level mine designs for both options included a simple decline, sumps, stockpiles, ventilation system, escape way and ore access along with a crown pillar from the surface to prevent surface subsidence. The following assumptions were used for both options:
- 1.5m minimum stope width / 25m max stope width
- 15m level spacing between development roadways
- 10% stope mining dilution, 90% stope mining recovery
The underground mining method assumed in the study is bench stoping with backfill (rock fill in conjunction with a form of cemented fill where required).
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