DIAMONDS IN CANADA: PLAYERS ADVANCING PROJECTS ACROSS THE NATION Geotech_Earlug_2016_Alt2.pdf 1 2016-06-24 4:27:20 PM
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Broadway looks for porphyry discovery in Montana GOLD-COPPER | Madison property shows promise BY MATTHEW KEEVIL
Orca Gold personnel atop a newly discovered aquifer in the Nubian Desert of northern Sudan: chief operating officer Kevin Ross (second from left) and exploration manager Moses Appiah (sixth from left), CEO Richard Clark and president Hugh Stewart. PHOTO BY RICHARD QUARISA
mkeevil@northernminer.com VANCOUVER
Orca poised to succeed in Sudan B SITE VISIT BY RICHARD QUARISA
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rquarisa@northernminer.com ABU HAMAD, SUDAN
t’s easy to tell when and where it last rained in the Nubian Desert. Grass sprouts up within a couple days and lasts as long as a few months. The green is a refreshing contrast against the reds and browns of the desert. Grass grows 85 km west of Orca Gold’s (TSXV: ORG; US-OTC: CANWF) 70%-owned Block 14 gold property — a few hundred metres beyond a set of disused 19th Century train tracks, built by the British and once connecting Cairo to Khartoum. But the grass doesn’t grow because of rain. “Water exploration was extremely important to us and we were very successful,” Orca chief operating officer Kevin Ross says. “We found this Nubian sandstone, which has got a lot of water in it.” Standing on Block 14 we are 200 km from the nearest anything and 900 km north of the country’s capital, Khartoum. Despite the intense heat — averaging 30°C annually — it is dry. And despite the endless expanse of sand, we are not alone. Crossing the desert in white Toyota Land
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“AS WE SPENT MORE TIME HERE WE REALIZED THAT SUDAN WASN’T THE KIND OF PLACE THAT EVERYBODY THOUGHT IT WAS.” HUGH STUART PRESIDENT, ORCA GOLD
Cruisers, we had more than flies for company, passing scores of artisanal miners squatting in shabby blue tents. They dig shallow holes and use massive metal screens to sift small quantities of gold. The artisanal miners are active across the Sudanese desert — and that includes on Block 14, where Orca allows them to stay for now, though the Sudanese government will likely soon remove them. In a place so dry and desolate, it’s hard to overstate the importance of access to water. “The other thing with the water,” Ross adds, “is that the quality is potable. You may not want to drink it because it’s got a slight taste to it, but it’s certainly not harmful at all.”
Orca’s discovery of the aquifer initially increased its plant throughput estimates for a potential mine at Block 14 to 3.4 million tonnes per year. After completing more drilling and analysis, Orca now says the water resource could support 6 million tonnes per year. Through its hydrogeological consultant, GCS Water & Environmental Consultants of South Africa, Orca established that it has at least 18 million cubic metres of water. After drilling four more holes and finishing a 48-hour pump test, Orca determined it could pump 15 to 18 litres of water per second across 15 holes for the rest of the mine’s life. Now the company needs to find the right ore. “We’ve run a 6-million-tonne plan, but the life is only eight years, so that’s a little bit light,” Ross says. Nevertheless, he’s confident that if Orca can keep converting inferred resources to indicated and extend the pit outline, it can get the anticipated life up to at least 10 years. In a May 30 revised preliminary economic assessment (PEA) of Block 14, Orca shows in-pit resources of 41 million indicated tonnes grading 1.46 grams gold
per tonne and 3.5 million inferred tonnes grading 1.56 grams gold. The PEA uses a US$1,200 per oz. gold price, and calculates a US$227.7million after-tax net present value at a 7% discount rate and a 23.1% internal rate of return. In August, the company started a 25,000-metre drill program to extend the resource at depth in two zones: Galat Sufar South (GSS) and Wadi Doum. Orca announced results on Oct. 17 from the initial 7,600 metres of drilling at GSS using four diamond drill rigs. It found several gold intercepts below the resource delineated in the revised PEA. Highlights include hole 15 returning 19.1 metres at 3.98 grams gold per tonne (from 68 metres downhole) and 48 metres at 1.96 grams gold (from 184 metres). Hole 16 cut 96 metres at 2.68 grams gold (from 67 metres) and 20.4 metres at 3.8 grams gold (from 246 metres). The Block 14 property comprises 2,170 sq. km, though the area was initially 7,000 sq. km when Orca acquired it. Orca has given some of that area back each year, and in May 2017, it renewed its exclusive prospecting licence.
roadway Gold Mining (TSXV: BRD; US-OTC: BDWYF) is big-game hunting at its Madison gold-copper property in the historic Butte-Anaconda mining district, 38 km southeast of Butte, Montana. The company picked up the 8 sq. km project package — which includes the dormant Broadway gold mine and contiguous Madison concessions — in late 2016. The site saw underground mining from the 1880s through 1950s, which yielded 408,000 tonnes of material at an grade of 9.1 grams gold per tonne. In the mid-2000s, Coronado Resources spent US$10 million to trial See BROADWAY / 2 PM40069240
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