Northern Freegold homes in on Nucleus

The camp at Northern Freegold's Freegold Mountain copper-gold project in the Yukon. Photo by Matthew KeevilThe camp at Northern Freegold's Freegold Mountain copper-gold project in the Yukon. Photo by Matthew Keevil

A new resource estimate outlining a higher-grade starter zone has put the Freegold Mountain project in prime position, as owner Northern Freegold Resources (NFR-V) finalizes the project’s first economic assessment.

Sitting just 200 km northwest of Whitehorse in the Yukon, the 198 sq. km Freegold Mountain project is home to three defined deposits and several drill-tested mineralized zones. In mid-2012, Northern Freegold focused its efforts on the Nucleus deposit, which is adjacent to the larger, lower-grade Revenue deposit.

The company worked to define a potential Nucleus starter pit while massaging the overall resource into a smaller, higher-grade entity. The efforts paid off.

The redefined Nucleus deposit contains 71.9 million indicated tonnes grading 0.57 gram gold per tonne, 0.85 gram silver per tonne and 0.06% copper, using a cut-off grade of 0.25 gram gold equivalent. Inferred resources add 60.4 million tonnes averaging 0.41 gram gold, 1.5 grams silver and 0.04% copper.

Increasing the cut-off grade to 0.4 gram gold equivalent changes the indicated resource to 36.1 million tonnes grading 0.85 gram gold and 1.01 grams silver, and the inferred resource to 29.2 million tonnes ­grading 0.55 gram gold and 2 grams silver. These numbers represent a 19% increase in gold grade compared to the previous Nucleus estimate.

The indicated resource also contains a zone of higher-grade mineralization. At a cut-off grade of 0.5 gram gold equivalent, this distinct zone contains 25.9 million tonnes averaging 1.02 grams gold, 1.11 grams silver and 0.07% copper.

Northern Freegold believes the zone could be exploited in the initial years of a mining operation to help pay back capital costs. Soon the company will know for sure whether this is the case: a preliminary economic assessment of the Nucleus and Revenue deposits is underway, with results expected within the next few months.

Nucleus and Revenue collectively cover 30 sq. km. The mineralization at Revenue is a typical copper-gold porphyry, while Nucleus is an intrusive-related, low-sulphidation epithermal deposit sitting within the porphyry system.

The company completed an initial estimate for the Revenue zone in early 2012, which pegged inferred resources at 158 million tonnes grading 0.27 gram gold, 2.49 grams silver and 0.11% copper. Together, the two deposits host 1.3 million indicated oz. gold and 1.9 million inferred oz. gold.

Metallurgy would not present a problem for the project’s economics. In September, Northern Freegold announced preliminary results from test work on the Nucleus deposit, which found that whole-ore, cyanide-leach processing recovered 97% of the gold and 51% of the silver from the mineralized rocks.

Northern Freegold believes Revenue, Nucleus and the Stoddart zone to the east are all part of a large-scale, gold-rich porphyry system that stretches more than 8 km east to west across the Freegold Mountain property.

The large property is well-situated, with good mine infrastructure. It is accessible by road, and electric grid power is available within 30 km.

News of the resource estimate added 2¢ to Northern Freegold’s share price, bringing it to 14.5¢. The company has a 52-week price range of 7.5¢ to 37¢, with 126 million shares outstanding.

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