Engineering & Mining Journal

FEB 2019

Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr

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Page 47 of 75

GREAT BASIN DEVELOPMENT 46 E&MJ • FEBRUARY 2019 en and probable reserves currently stand at 270,000 oz." Showing a block-model reconciliation for the Phase 2 pit, George explained that the ore tons were 6.2% higher than they originally calculated, the grade was 10% higher, and overall ounces were 17% greater than expected. "Yes, it was a little bit off, but that's what you like to see if you're going to be off," George said. Small Mine Development is driving the portals for the El Nino underground mine now. "The drift should be finished in the third quarter of this year and production will be begin once the drifts are complet- ed," George said. "As far as Phase 1 pro- duction, they are still continuing to strip and push the pit back." The next major development proj- ect for Premier in Nevada will be the Cove project. The Cove project is a large 50-sq.-mile property package, located immediately south of Newmont's Phoenix mine, but it mostly looks like a big pit lake. Premier holds a 100% interest in the main deposit area contained within the larger JV area. The Cove project consists of four ma- jor resource zones: CSD zone, which is what they were mining in the bottom of the cove pit when they shut down; the 2201 zone, a polymetallic feeder zone; and the Helen and Gap zones, which are typical Carlin-style deposits. The Cove PEA focused on the Helen and Gap zones. The two zones are separat- ed by a major fault zone. "Understanding this is important to us, not only as far as mineralization, but we also think it will act as an aquitard, which should make mining the Helen a little easier than mining the Gap," George said. He believes the water table will be the same level as the bottom At South Arturo, Premier continues to strip and push the pit back as it prepares for production.

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