The Eaglehead project was first explored in 1963 with drainage sampling staged from Eaglehead Lake. Copper mineralization was found in intrusive outcrop in the creek in what is now known as the Camp Zone.
Imperial Oil Ltd. optioned the property in 1970 and drilled 30 diamond drill holes between 1971 and 1976. Esso Resources Ltd. (formerly Imperial Oil) with joint venture partner Nuspar Resources drilled a further 25 holes between 1977 and 1981.
Carmax took over the property in 2002 after Homestake Mining let the claims lapse and has expanded the claims to 11,410 hectares. The company has drilled an additional 35 holes expanding the high grade East Zone 500 m east.
Access and Physiography
The property is located approximately 50 km east of Dease Lake, 90 km by road, and occupies a northwesterly trending drift filled valley and ridges. The valley floor, approximately 1500 m in elevation, is extensively drift cover in which eskers and kettles are prominent features. Road access from the camp to the Caribou Pass road and Boulder Creek was completed in 2006.
The Eaglehead property lies on the southern flank at the east end of a zoned, Early- to- Late Jurassic batholith that centers on Eaglehead Lake. The batholith is bounded on the northeast by the Kutcho fault, a major northwest trending structure, characterized by strongly cataclastized, foliated and mylonitized rocks over widths of 1.5 to 3.0 km. The southwest flank of the batholith is bounded by elements of the King Salmon Assemblage comprising of Cache Creek rocks overlain by upper Triassic Kutcho volcanoclastics, Sinwa limestone and sediments of the Inklin Formation.
The Thiber fault marks the contact between the Cache Creek and Inklin rocks south of Eaglehead. Movement on the fault is right lateral with the southwest side being structurally higher. One splay off this fault cuts through the property along the southern contact of the Eaglehead batholith. It appears to truncate volcanic and sedimentary stratigraphy and provides the main structural fabric within the mineralized areas in the valley bottom.
The Eaglehead has five distinct mineralized zones along a strike length of over 5 km. Work to date suggests the mineralization is associated with strong hydrothermal alteration and quartz veins.
The West Zone is the least explored with only two holes drilled, but both encountered significant mineralization. DDH 56 intersected 4.6 m of 0.28 % copper (“Cu”), 10.3 m of 0.22 % Cu, 8.1 m of 0.32 Cu and 19.6 m of 0.30 % Cu. DDH 57 intersected 0.6 m of 1.40 % Cu, 4.8 m of 0.82 % Cu and 11.4 m of 0.56 % Cu.
The Camp Zone has been tested with 18 holes of which 17 intersected significant mineralization with an average width of 15.4 m at 0.60 % Cu and 0.10 % Mo. Historical inferred resource estimate of 2.72 m tonnes of 0.45 % Cu was calculated by Homestake.
The Pass Zone has been tested by 21 holes and lies 1.5 km southeast of the Camp Zone with a historical inferred resource estimate of 11.5 m tonnes of 0.52 % Cu calculated by Homestake.
The Bornite Zone has been tested with 22 holes all of which intersected significant copper mineralization. The moderate to steeply dipping mineralized zone is 50- to- 100 -m wide and extends approximately 1 km along strike and more than 300 m in depth. Historical inferred resource estimate is in excess of 20 m tonnes at 0.42 % Cu, 0.029 % Mo, 0.035 g/t Au and 1.60 g/t Ag.
The East Zone has had the most drilling with 28 holes totalling over 10,000 m. The East Zone lies 400 m east of and is essentially the continuation of the Bornite Zone. The mineralized zone is approximately 500 m on strike and is open in all directions. Recent inferred resource by Giroux indicates 53 m tonnes at 0.338 % Cu, 0.013 % Mo, 0.078 g/t Au and 0.876 g/t Ag using a 0.20 % Cu cutoff.
Historical data, although collected using acceptable industry methods, have not been confirmed and are not 43-101 compliant. There is insufficient drilling in the Camp, Pass and Bornite Zones to calculate a resource estimate.
Download Eaglehead Location Map PDF
Download Eaglehead Property Map PDF
Download Map of Bornite and East Zones
Download Map of Bornite Zone
Download Map of East Zone