Monday 24th October 2016

Resource Clips

Posts tagged ‘Copper North Mining Corp (COL)’

Copper North Mining drills porphyry copper-gold in northern B.C.

October 20th, 2016

by Greg Klein | October 20, 2016

Having released a PEA for its Carmacks copper-gold-silver project in the Yukon the previous week, Copper North Mining TSXV:COL reported drill results from the northern British Columbia Thor project on October 20. After two previous holes on the 20,000-hectare property’s Thor West area came up dry, a Thor East hole did better:

Hole TH16-01

  • 0.14% copper and 0.045 g/t gold over 107.6 metres, starting at 11.65 metres in downhole depth
  • (including 0.23% copper and 0.069 g/t gold over 37.13 metres)
  • (which includes 0.28% copper and 0.087 g/t gold over 23.85 metres)

True widths were unavailable.

Copper North Mining drills porphyry copper-gold in northern BC

Samples from the property’s Thor East area
show oxide-weathered granodiorite.

Traces of copper continue beyond that intercept to the end of the hole at 169.16 metres, the company stated. “The transition from stronger mineralization and quartz-veining at the top of the hole to weaker copper mineralization and phyllic alteration at depth suggests that drill hole TH16-01 may flank a mineralized porphyry centre.”

Next steps would include ground surveys at Thor East and evaluating multiple geochemical targets and alteration zones, the company added. Field work has already identified multiple targets over a four-by-six-kilometre area southeast of TH16-01.

“The large area of porphyry alteration and gossan zones remain an attractive exploration target,” commented president/CEO Harlan Meade. “The Thor project provides Copper North with an opportunity to explore for porphyry copper-gold type mineralization in the slopes and valleys 20 kilometres to the south of the Kemess South mine and mill complex.”

The former mine now lies within AuRico Metals’ (TSX:AMI) Kemess Underground gold-copper-silver property.

Copper North holds a 100% option on Thor, which has a road and power line passing through the property.

The company closed private placements totalling $279,050 this month.

Read more about Copper North Mining.

Adding Yukon gold and silver

October 17th, 2016

Copper North Mining brings copper mining costs south


Look at development-ready copper projects and “you’ll find most of them are very large, multi-billion-dollar projects,” says Copper North Mining TSXV:COL president/CEO Harlan Meade. “And if you look at the smaller projects, there aren’t that many that would be in the lower decile of the cost curve.” A revised PEA announced October 12 brought the company’s Carmacks project into that category by incorporating gold and silver into a new metallurgical flowsheet. But Meade sees further potential for the south-central Yukon property with additional improvements, a new resource—completed but not yet entered into the mine plan—and an optimistic price scenario for the conductive commodity.

Metallurgy was key to the new PEA. A 2012 feasibility study “was based on a copper-only heap leach operation and that suited the higher metal prices of the day,” Meade explains. In 2014 Copper North factored gold and silver into a revised PEA. The current PEA now calls for agitated tank leaching of copper oxides to produce cathode copper. That would be followed by agitated tank leach cyanidation and carbon-in-leach processing to produce gold and silver doré bars. Considering gold and silver credits, the open pit would produce copper at US$1.08 a pound.

Copper North Mining brings copper mining costs south

Carmacks’ new resource has yet to be worked into the mine plan.
Further improvements could come from resource expansion,
improved silver recovery and eventual sulphide recovery.

The PEA sees Carmacks averaging 30 million pounds of cathode copper, 19,500 ounces of gold and 21,600 ounces of silver annually over a seven-year mine life.

Pre-production capex comes to $214.7 million, with total capex of $263.6 million and after-tax payback in 5.3 years. Using an 8% discount rate, the pre-tax NPV comes to $11.9 million with a 9.4% IRR. After taxes, the numbers show minus-$11.4 million and 6.6%.

That’s based on copper at $2.50 a pound, with gold at $1,300 and silver at $17.50 an ounce. At $2.75 copper, the pre-tax numbers show a $55.9-million NPV and 14.2% IRR. Should copper hit $3, pre-tax numbers climb to $99.8 million and 18.7%.

“Some people are using $2.75,” says Meade. “I wouldn’t blame them because if you look at the fundamentals of copper I think we’re going to see it in the $2.50 to $2.75 range towards the end of next year, and that would be the environment we’d be financing in.”

Directly sourced equipment helps cut capex. “A lot of equipment used today is made in China and brought in by U.S. suppliers. If we go straight to the source we get a very, very significant reduction.”

A pre-feas priority will be last January’s maiden resource for three zones not included in the current PEA. Located south of the proposed open pit that incorporates zones 1, 4 and 7, new zones 12, 13 and 2000S show the following totals:

Oxide and transitional mineralization

  • measured and indicated: 3.7 million tonnes averaging 0.5% total copper, 0.35% acid-soluble copper, 0.132 g/t gold, 2.011 g/t silver and 0.15% copper sulphide

  • inferred: 822,614 tonnes averaging 0.42% total copper, 0.28% acid-soluble copper, 0.119 g/t gold, 1.91 g/t silver and 0.14% copper sulphide

Sulphide mineralization

  • measured and indicated: 3.73 million tonnes averaging 0.6% total copper, 0.06% acid-soluble copper, 0.128 g/t gold, 2.288 g/t silver and 0.55% copper sulphide

  • inferred: 4.37 million tonnes averaging 0.55% total copper, 0.04% acid-soluble copper, 0.123 g/t gold, 2.081 g/t silver and 0.52% copper sulphide

Each of the three zones remains open along strike and at depth. Oxides begin at surface and extend to shallow depths. Sulphides occur at depths as shallow as 50 metres, the report stated.

Totals for all six zones come to:

Oxide and transitional mineralization

  • measured and indicated: 15.7 million tonnes averaging 0.94% copper, 0.74% acid-soluble copper, 0.379 g/t gold and 3.971 g/t silver

  • inferred: 900,000 tonnes averaging 0.45% copper, 0.3% acid-soluble copper, 0.119 g/t gold and 1.9 g/t silver

Sulphide mineralization

  • measured and indicated: 8.1 million tonnes averaging 0.68% copper, 0.178 g/t gold and 2.332 g/t silver

  • inferred: 8.4 million tonnes averaging 0.63% copper, 0.15 g/t gold and 1.994 g/t silver

Meade wants additional drilling in and around the three new zones this spring to upgrade the inferred numbers and maybe expand the resource too. “Then we’ll do some engineering to design a pit to add to the existing plan,” he says.

And we’ve still got a lot of room for exploration and expansion. I think there’s significantly more copper oxides and sulphides if one turns on the drills.—Harlan Meade,
president/CEO of
Copper North Mining

Another priority will be silver recovery, now down to 9.4%, compared with 85.5% for copper and 84.4% for gold. Silver took a hit when tests sped up the leach process by increasing heat. “But we’ll probably get it back,” says Meade.

At some point the sulphides should undergo metallurgical studies to produce either cathode copper or a concentrate. “There’s work to be done that might significantly extend the mine life,” he points out. “And we’ve still got a lot of room for exploration and expansion. I think there’s significantly more copper oxides and sulphides if one turns on the drills.”

Permitting could begin in fall 2017. “Carmacks has already been through the process and I think this proposal would be a lot simpler than the previous heap leach project,” he maintains. “I think the regulators will find much of this has been reviewed before so we think it’ll take about eight months. If that’s done you could begin production in early 2019.”

Community relations look positive, he adds. “My predecessor spent a lot of time building a relationship with two first nations. They’re keen to get started on a benefits agreement. They’re supportive of what we’re doing and hope we get this going sooner than later.”

The 4,933-hecatre project has nearby water, sits 11 kilometres from power and has 13 kilometres of road and trail access to a seasonal road that’s 34 kilometres from the town of Carmacks.

Having kept costs down to the lower decile, “we think Carmacks has a very good probability of being financed fairly quickly, especially if we see a small improvement in the copper price. We see it developing quickly and probably becoming Canada’s next copper mine. It’s financeable and it’s a low-cost producer, what more could you ask for? I guess a little more mine life, but we’re working on that.”

The company has also been active in northwestern British Columbia, where summer drilling has wrapped up on the Thor copper-gold porphyry project. Meade expects to release assays shortly.

This month Copper North closed private placements totalling $279,050.

Drilling to begin at Copper North Mining’s Thor project in B.C.

September 9th, 2016

by Greg Klein | September 9, 2016

In a program announced early last month, Copper North Mining TSXV:COL has a rig in place at its Thor project in northwestern British Columbia. The first hole will target Thor East Area 3, which hosts “numerous small veins with copper and gold, and extensive alteration zones,” the company stated.

Drilling to begin at Copper North Mining’s Thor project in B.C.

Copper-stained granodiorite crops up
on Copper North’s Thor project.

Another hole will test the Thor West Area, defined by an induced polarization anomaly covering two kilometres by 2.5 kilometres, flanking a road to the former Kemess mine. Another Thor West hole has been planned 1.5 kilometres away, on the anomaly’s northern section.

Further drilling depends on results for these initial holes.

The campaign’s goal is porphyry copper-gold mineralization near the past-producing Kemess South open pit and mill complex, now within AuRico Metals’ (TSX:AMI) Kemess Underground gold-copper-silver property.

“The drill holes are very widely separated and may confirm the interpreted widespread mineral zones,” Copper North added. The company holds a 100% option on the approximately 20,000-hectare property.

In the Yukon, meanwhile, the flagship Carmacks copper project advances through the final stages of a PEA study. The company plans to improve on a 2014 PEA by factoring in gold and silver recovery.

Read more about Copper North Mining.

The northern enigma

September 2nd, 2016

UBC researchers help explorers better understand Yukon and Alaskan geology

by Greg Klein

They’re not necessarily the mob you’d find whooping it up in the Malamute Saloon. But the spell of the Yukon and neighbouring Alaska has attracted a unique collaboration of industry and academia with a mission—to unravel some of the geology that remains mysterious after more than a century of scrutiny. Demonstrated dramatically by Goldcorp’s (TSX:G) $520-million takeout of Kaminak Gold, the land of Robert Service, Jack London and countless TV reality shows still has considerable mineral wealth to be found.

UBC researchers help explorers better understand Yukon and Alaskan geology

Murray Allan (left), students Kathryn Grodzicki and Stephen Bartlett
take a break while mapping in Yukon’s Dawson Range.
(Photo: Murray Allan)

Joining the search are students and faculty from the University of British Columbia’s Mineral Deposit Research Unit. Catalysed by the discovery of the territory’s White Gold district, the group conducted its Yukon Gold Project from 2010 to 2012. They returned in 2014 with the current Yukon-Alaska Metallogeny project, partly inspired by the Kaminak discovery.

“We’re basically looking at everything from the Yukon-B.C. border all the way up to the Fairbanks area,” MDRU research associate Murray Allan tells “It’s an enormous package of ground.”

The region includes Kaminak’s Coffee, Western Copper and Gold’s (TSX:WRN) Casino and Copper North Mining’s (TSXV:COL) Carmacks deposits, among other resources in the Dawson Range Mineral Belt.

Much of the work involves “digesting public information, assimilating already-existing data into coherent data sets that can be of value to companies when they’re deciding where to target,” Allan explains. “In parallel to that we’re doing our own field work, looking at areas that are poorly understood, sampling rocks, understanding the age and the controls on mineralization so companies can make much better technical exploration decisions.”

It’s “a huge, collaborative effort,” he emphasizes. “What we do relies 100% on the participation of industry sponsors and the exploration industry as a whole. Just as important is the relationship we have with the various government surveys.”

Last month the group collected a $557,670 grant from the Natural Sciences and Engineering Research Council of Canada. The project also gets $700,000 in direct and in-kind contributions from Kaminak, Sumac Mines and Copper North. The MDRU works closely with the Yukon Geological Survey and also with the national surveys of Canada and the U.S.

Kaminak president Eira Thomas credited the group with bringing “a high level of scientific rigour … to our geological understanding of the Coffee gold resource. This knowledge ultimately contributes to improved exploration and development planning.”

The region’s lack of glaciation presents challenges as well as benefits, Allan points out. There’s little rock at surface, so trenching plays a bigger role in early-stage work. On the other hand, soils have largely stayed put for an awfully long time. “For example, if a program identifies a gold anomaly in soils, almost certainly they’re very close to a bedrock source of mineralization.” That helps explain legendary prospector Shawn Ryan’s success in sparking the Yukon’s most recent gold rush.

Speaking of legendary, the Klondike gold fields sit within the project area. There, the lack of glaciation “led to very deep weathering of mineralized rock, which ultimately led to the efficient accumulation of placer gold deposits,” Allan points out. Probably 20 million ounces or more have been pulled out of Klondike creeks. Yet a bedrock source of gold that’s economic by current mining standards remains elusive.

UBC researchers help explorers better understand Yukon and Alaskan geology

Some of the Yukon-Alaska Metallogeny team
on a site visit to Kaminak’s Coffee project.
(Photo: Murray Allan)

“Up until now, despite lots of effort, there’s been no notable discoveries of gold in the ground. Either it’s a problem with the exploration methods or our understanding of what controls gold in the Klondike, or perhaps there’s a good geological reason why there might not be huge quantities of gold in economic concentrations in the ground,” he says.

“Our role is to understand what controls mineralization of any age and any style. That plays into the structural controls, whether faults of a particular orientation might be important, or whether a certain igneous rock of a particular age might play a role. We have examples of both. We’ve identified a large number of systems related to Late Cretaceous intrusions, for example, which we know are very fertile for copper and gold mineralization. But the White Gold district that kicked off in 2009, for example, has no intrusions to our knowledge that control mineralization there. The gold seems to be purely associated with faults.”

Having wrapped up 2016 field work last month, the group’s back at UBC, busy processing samples and compiling data. Their findings, often in the form of maps and data sets, go first to industry sponsors. That gives the companies a short-term advantage during a period of confidentiality. Then the info goes public, in a thesis or academic publication.

But even back in Vancouver, the spell of the Yukon remains.

“It’s an interesting role for us to play, doing modern, cutting-edge science in an area that has that industrial heritage,” Allan says. “I don’t think anyone working in that area would deny that’s part of the appeal. But the fact remains that there’s a lot of gold we know about, for example in placer creeks, but not much knowledge about the source of that gold. So there remains a huge amount of potential for hard rock explorers in that part of the world. There’s a very legitimate economic reason for investment and exploration in that part of the Yukon and Alaska.”

The MDRU returns to the field next June.

Copper North Mining president/CEO Harlan Meade discusses PEA studies on Yukon’s Carmacks copper project

September 2nd, 2016

…Read more

Copper North prepares to drill Thor as Carmacks PEA approaches

August 4th, 2016

by Greg Klein | August 4, 2016

At first, it might seem like a diversion prior to imminent news of a larger scale. Copper North Mining TSXV:COL has resumed work on its Thor project in north-central British Columbia. At the same time the company’s putting the finishing touches on an updated PEA for its Carmacks project in southwestern Yukon. But president/CEO Harlan Meade sounds excited about both copper-gold projects.

Copper North prepares to drill Thor as Carmacks PEA approaches

Copper North searches north-central B.C. for
another deposit while advancing its Yukon project.

“We’ll start drilling Thor towards the end of the month,” he tells “We’ll drill two or three holes in Thor West and a couple of holes in areas 2 and 3 in the Thor East part of the property. In the interim, we’re doing a lot of detailed geological mapping and sampling. Quite frankly, we’ve been pleasantly surprised … getting into the field, you can see they’re pretty exciting-looking rocks once you understand what’s going on.”

The project’s goal is porphyry copper-gold mineralization some 20 kilometres south of the mined-out Kemess South open pit, now within AuRico Metals’ (TSX:AMI) Kemess Underground gold-copper-silver property.

Copper North holds a 100% option on Thor. A road and power line pass through the 16,000-hectare property.

Out of an historic program of six holes totalling 692 metres on Thor East’s area 3, one interval returned 0.12% copper and 0.04 grams per tonne gold over 60 metres. Since then Copper North conducted extensive geophysics but market conditions postponed further drilling until this month. “The targets are big and we’re going to test our geological interpretation of what’s going on,” Meade says. “These are big targets, we can drill widespread holes and if we’re right about it and the holes come in, raising money for Thor won’t be an issue.”

In this market you need to be in the lower 10th-percentile cost curve. The only way we could achieve that was to add on gold and silver recovery. That’s a game changer.—Harlan Meade,
president/CEO of
Copper North Mining

The Carmacks report, originally scheduled for May, will replace a 2014 PEA. “The earlier study focused on heap-leaching the oxide copper deposit, but in my view that would put the project in the middle of a cost curve,” Meade explains.

“In this market you need to be in the lower 10th-percentile cost curve. The only way we could achieve that was to add on gold and silver recovery. That’s a game changer. We’ve done a lot of re-engineering, moved completely away from heap leaching to agitated tank leaching, which is a lot more efficient and gives us higher recoveries and very rapid leach times. A lot of the operational issues and environmental concerns have been largely mitigated now because everything’s contained. Our view is that we’re on track to be Canada’s next copper mine.”

The road-accessible Carmacks sits 11 kilometres from the grid, 190 kilometres north of Whitehorse and 400 kilometres from the year-round port of Skagway, Alaska.

Copper North also holds an historic copper resource at its Redstone property in the Northwest Territories’ Nahanni district.

Read more about Carmacks’ PEA studies.

Exploring opportunity

June 17th, 2016

A capacity crowd attends the first annual Vancouver Commodity Forum

by Greg Klein
Next Page 1 | 2

A capacity crowd attends the first annual Vancouver Commodity Forum


“There’s excitement in the air,” said Cambridge House International founder Joe Martin. That’s the mood he senses as junior explorers emerge from the downturn. And certainly optimism was evident on June 14 as more than 450 people converged on the Vancouver Commodity Forum for an afternoon of expert talks amid a showcase of two dozen companies. Keynote speakers included Martin, Chris Berry of the Disruptive Discoveries Journal, Jon Hykawy of Stormcrow Capital, John Kaiser of Kaiser Research Online and Stephan Bogner of Rockstone Research.

A capacity crowd attends the first annual Vancouver Commodity Forum

Lithium, not surprisingly, stood out as a commodity of interest. While cautioning against over-enthusiasm for the exploration rush, Berry and Hykawy each affirmed the need for juniors to find new sources of the metal. Cobalt and scandium featured prominently too, as did other commodities including what Kaiser called “the weird metals”—lesser known stuff that’s vital to our lives but threatened with security of supply.

Kaiser also noted he was addressing a crowd larger than his last PDAC audience, another indication that “we’ve turned the corner.”

Attendees also met and mingled with company reps. Potential investors learned about a wide gamut of projects aspiring to meet a growing demand for necessities, conveniences and luxuries.

Presented by Zimtu Capital TSXV:ZC, the forum’s success will make it an annual event, said company president Dave Hodge. Berry emceed the conference, holding the unenviable task of “making sure Dave stays well-behaved.”

Read interviews with keynote speakers:

Meet the companies

Most companies were core holdings of Zimtu, a prospect generator that connects explorers with properties and also shares management, technical and financing expertise. Zimtu offers investors participation in a range of commodities and companies, including some at the pre-IPO stage.

After sampling high-grade lithium on its Hidden Lake project in the Northwest Territories earlier this month, 92 Resources TSXV:NTY plans to return in mid-July for a program of mapping, exposing spodumene-bearing pegmatite dykes, and channel sampling. The company closed the final tranche of a private placement totalling $318,836 in April. Hidden Lake’s located near Highway 4, about 40 kilometres from Yellowknife and within the Yellowknife Pegmatite Belt.

With one of the Athabasca Basin’s largest and most prospective exploration portfolios, ALX Uranium TSXV:AL has a number of projects competing for flagship status. Among them is Hook-Carter, which covers extensions of three known conductive trends, one of them hosting the sensational discoveries of Fission Uranium TSX:FCU and NexGen Energy TSXV:NXE. ALX’s strategic partnership with Holystone Energy allows that company to invest up to $750,000 in ALX and retain the right to maintain its ownership level for three years. ALX closed a private placement first tranche of $255,000 last month, amid this year’s busy news flow from a number of the company’s active projects.

A capacity crowd attends the first annual Vancouver Commodity Forum

Arctic Star Exploration TSXV:ADD boasts one of northern Canada’s largest 100%-held diamond exploration portfolios. Among the properties are the drill-ready Stein project in Nunavut and others in the Lac de Gras region that’s the world’s third-largest diamond producer by value. North Arrow Minerals TSXV:NAR holds an option to earn up to 55% of Arctic Star’s Redemption property.

Aurvista Gold TSXV:AVA considers its Douay property one of Quebec’s largest and last undeveloped gold projects. The Abitibi property has resources totalling 238,400 ounces of gold indicated and 2.75 million ounces inferred. Now, with $1.1 million raised last month, the company hopes to increase those numbers through a summer program including 4,000 metres of drilling. Douay’s 2014 PEA used a 5% discount rate to forecast a post-tax NPV of $16.6 million and a post-tax IRR of 40%.

Looking for lithium in Nevada, Belmont Resources TSXV:BEA now has a geophysics crew en route to its Kibby Basin property, which the company believes could potentially host lithium-bearing brines in a similar geological setting to the Clayton Valley, about 65 kilometres south. Results from the gravity survey will help identify targets for direct push drilling and sampling.

A mineral perhaps overlooked in the effort to supply green technologies, zeolite has several environmental applications. Canadian Zeolite TSXV:CNZ holds two projects in southern British Columbia, Sun Group and Bromley Creek, the latter an active quarrying operation.

With a high-grade, near-surface rare earths deposit hosted in minerals that have proven processing, Commerce Resources TSXV:CCE takes its Ashram project in Quebec towards pre-feasibility. The relatively straightforward mineralogy contributes to steady progress in metallurgical studies. Commerce also holds southeastern B.C.’s Blue River tantalum-niobium deposit, which reached PEA in 2011 and a resource update in 2013.

Permitted for construction following a 2014 PEA, Copper North Mining’s (TSXV:COL) Carmacks copper-gold-silver project now undergoes revised PEA studies. The agenda calls for improved economics by creating a new leach and development plan for the south-central Yukon property. In central B.C. the company holds the Thor exploration property, 20 kilometres south of the historic Kemess mine.

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Metallurgical progress puts Copper North on track for PEA update

March 23rd, 2016

by Greg Klein | March 23, 2016

Metallurgical tests point to a simplified flowsheet and improved recovery for Copper North Mining’s (TSXV:COL) Carmacks copper-gold-silver deposit in south-central Yukon. The results will be incorporated into a new leach and development plan for an updated PEA expected in early May, the company announced March 23.

Metallurgical progress puts Copper North on track for May PEA update

Delineation drilling could add more zones to a later-
stage mine plan for Copper North’s Carmacks project.

Tests showed an increase in the leach temperature to 80 degrees centigrade improved copper recovery, eliminated one circuit and simplified the cyanide circuit for leach recovery of gold and silver.

The new PEA will be based on the project’s 1, 4 and 7 zones, which were estimated to have a seven-year lifespan. Copper North said three other zones, which produced a maiden resource in January, call for further infill drilling for possible inclusion in a later mine plan.

“Furthermore, the substantial increase in sulphide mineral resources at shallow depth warrants additional metallurgical test work to confirm the potential to process that material to produce either concentrate or cathode copper,” the company added.

The resource for zones 1, 4, 7 and 7A used a 0.25% total copper cutoff, showing oxide mineral resources as follows:

  • measured and indicated: 11.98 million tonnes averaging 1.07% total copper (0.86% acid-soluble copper and 0.21% sulphide copper), 0.456 grams per tonne gold and 4.578 g/t silver

  • inferred: 90,000 tonnes averaging 0.73% total copper (0.53% acid-soluble copper and 0.2% sulphide copper), 0.128 g/t gold and 1.809 g/t silver

The sulphide mineral resources show:

  • measured and indicated: 4.34 million tonnes averaging 0.75% total copper (0.03% acid-soluble copper and 0.73% sulphide copper), 0.221 g/t gold and 2.369 g/t silver

  • inferred: 4.03 million tonnes averaging 0.71% total copper (0.01% acid-soluble copper and 0.7% sulphide copper), 0.179 g/t gold and 1.9 g/t silver

The road-accessible project lies about 190 kilometres north of Whitehorse and 38 kilometres northwest of the town of Carmacks. The region’s first reported copper discovery, 12 kilometres north of the property, was made in 1887 by George Dawson as he surveyed the Yukon prior to the Klondike Gold Rush and the creation of a city named after him.

Copper North also holds a 100% option on the Thor porphyry copper property in British Columbia and an historic resource at its Redstone copper-silver project in the Northwest Territories.

Copper North expands Carmacks copper-gold-silver resource

January 27th, 2016

by Greg Klein | January 27, 2016

A substantially increased resource adds a southern extension to Copper North Mining’s (TSXV:COL) Carmacks deposit in the Yukon. Released January 25, the estimate provides a maiden resource for zones 12, 13 and 2000S, which were added to a 2007 resource for zones 1, 4 and 7 to the north.

Carmacks holds oxide resources at shallow depths, while sulphide mineralization in the three new zones extends to as little as 50 metres, a much shallower depth than zone 1’s sulphide resource.

The new estimate shows oxide and transition mineral resources as follows:

  • measured: 6.48 million tonnes averaging 0.86% total copper (0.69% acid-soluble copper and 0.17% sulphide copper), 0.414 g/t gold and 4.235 g/t silver

  • indicated: 9.2 million tonnes averaging 0.97% total copper (0.77% acid-soluble copper and 0.2% sulphide copper), 0.357 g/t gold and 3.796 g/t silver

  • inferred: 912,614 tonnes averaging 0.45% total copper (0.3% acid-soluble copper and 0.15% sulphide copper), 0.119 g/t gold and 1.9 g/t silver

The sulphide mineral resources show:

  • measured: 1.38 million tonnes averaging 0.64% total copper (0.05% acid-soluble copper and 0.59% sulphide copper), 0.185 g/t gold and 2.166 g/t silver

  • indicated: 6.69 million tonnes averaging 0.69% total copper (0.4% acid-soluble copper and 0.65% sulphide copper), 0.172 g/t gold and 2.344 g/t silver

  • inferred: 8.4 million tonnes averaging 0.63% total copper (0.03% acid-soluble copper and 0.61% sulphide copper), 0.15 g/t gold and 1.994 g/t silver
Copper North expands Carmacks copper-gold-silver resource

Carmacks’ updated PEA will consider new
advancements in leaching sulphides and oxides.

Zones 1, 4 and 7 used a cutoff of 0.25% total copper for oxide, transition and sulphide mineralization. Zones 2000S, 12 and 13 used a 0.15% acid-soluble copper cutoff for oxide and transition mineralization, and a 0.25% total copper cutoff for sulphide mineralization.

Having drilled only about 60% of the mineralized trend’s length, the company stated all zones remain open along strike and at depth.

“The expansion of the near-surface sulphide mineral resources warrants evaluation for leaching of sulphide mineralization, taking advantage of new advancements in leaching of copper sulphides, such that the copper may be extracted using the same SX-EW technology proposed for oxide mineralization,” stated president/CEO Harlan Meade.

With that in mind, Copper North has a new preliminary economic assessment underway for zones 1, 4 and 7 to replace the 2014 PEA.

The company also holds a 100% option on the Thor porphyry copper property adjacent to the former Kemess mine in north-central British Columbia and an historic resource at its Redstone copper-silver project in the Northwest Territories’ Nahanni mining district.