OPEMISKA COPPER COMPLEX
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Plans and Sections from Spring 2019 Drill Program
Location and Infrastructure
The Opemiska Copper Complex spans ~10,000 hectares and is located in the Chibougamau region of Quebec, renowned for its mineral wealth. The property hosts four past producing underground mines in Springer, Perry, Robitaille and Cooke–previously operated by Falconbridge and at one point, Opemiska was considered to be the company’s major copper producer. Falconbridge operated these mines from 1953 to 1991, where it produced a total of 23.6 million tonnes at 2.14% copper, 0.99 g/t gold.
Significant infrastructure exists including a power station within the property boundary, while the project itself can be accessed easily via Highway 113, Canadian National Railway, or via airport (located approximately 20km south east of Chapais).
Geology & District Scale Exploration Potential
Opemiska hosts varied styles of mineralization and is exposed to 12km of the Gwillim Fault, which goes through the property. The Gwillim Fault is a key structural control on mineralization at the Opemiska Copper Complex. The varied styles of mineralization on the property include:
- Opemiska Cu-Au: deposits like Springer, Perry and Robitaille were the mainstay of production in the Chapais District
- Opemiska Au-Cu: near the Gwillim Fault the same style is dominated by gold. Examples are Cooke mine, Vein #7 at Springer and the Gwillim Mine
- Blondeau VMS: Blondeau Formation is host to numerous VMS-style occurrences in the district. Examples are the 8-5 Zone in the Cooke Mine and the Barrigan-Brosman prospects.
- Scott-Lemoine Type VMS: Classic VMS-type deposits located at top of Waconichi Rhyolite on north and south limbs of Chibougamau anticline. This stratigraphy is present on property but has only been tested near surface.
Historical and recent work
Power Ore acquired the Springer and Perry properties from Ex-In, who acquired the properties in 1993 and digitized the abundance of data from Falconbridge operations. This includes ~14,500 DDH, for a total of 853,800 metres drilled (today’s value ~$50,000,000), more than 300,000 assays, and 1,000 maps and sections. Both the Springer and Perry mines were previously mined by Falconbridge between 1953 and 1991. Together, they produced 23 million tonnes grading 2.4% copper and 0.3 g/t gold. Power Ore conducted a 23-hole, 3,300 metres drill program on the Springer Mine in 2019 which showed excellent near surface and long mineralized intervals, along with disseminated potential at Springer.
Power Ore acquired the Robitaille and Cooke properties from 2736-1179 Quebec Inc., a private company to expand its land package from 797 hectares to ~10,000 hectares providing significant upside. While Robitaille, similar to Springer and Perry was predominantly a copper mine, the Cooke Mine was a high-grade gold-copper mine–producing ~320,000 ounces at 5.17 gpt gold from gold-hosted quartz veins.
3D Interpretation of Opemiska Digital Database
3D Model of Springer Veins & Stopes, Sections
Recent Drill Programs
Power Ore conducted a 23-hole 3,300 metre drill program in Spring 2019 with the purpose of testing the near surface disseminated mineralization on the property as well as to twin some Falconbridge holes as an initial step towards validating historical drilling. Primary conclusions from the drill program included:
1) Confirmation of near surface disseminated mineralization with twelve mineralized intersections over or near 100 metres in length;
2) Mineralization in areas previously thought to be unmineralized, specifically in the Hinge Zone within the rhyolite and the Southeast Zone, which delivered a 284 metre mineralized interval;
3) Newly discovered high grade veins outside of hte previously mined envelope; and
4) Crown pillars are thicker than anticipated.
Photo of Diamond Drill Hole OP-2010-19: 17% Copper + 1.7 g/t Gold over 3 metres
Spring 2019 Drill Program Map
Spring 2019 High-Grade Intersections
Spring 2019 Long Mineralized Intervals
A Chibougamau Renaissance
Mining in Quebec and Plan Nord
Opemiska also falls within the boundary of Plan Nord — a mandate by the Government of Quebec to “enable the development of this rich resources area, for the benefit of its populations and of the whole of Québec, through an exemplary form of sustainable development based on a comprehensive, integrated, consistent and responsible approach.”