Exploration

Home  >  Exploration  >  Regional Exploration

Regional Exploration

In 2015, the exploration focus at the Brucejack property began to shift to areas outside of known mineralization. The Bowser Regional Project area, approximately 20 kilometers south-east of the Valley of the Kings deposit, comprises approximately 1200 square kilometers. The 2015 grass-roots exploration program was comprised of airborne EM, magnetic and radiometric surveys over two thirds of the claims area, as well as prospecting. A 20,000-meter surface drill program targeted porphyry/epithermal-style mineralization to the east of the Brucejack Mine. The 2015 brownfields exploration program was successful in expanding the size of the hydrothermal system that includes the Valley of the Kings and confirming the potential for additional mineralized zones to the east. With the discovery of the Flow Dome Zone the program was successful in extending the strike length of the Valley of the Kings gold mineralization 1,000 meters to the east of the current Valley of the Kings Measured and Indicated Mineral Resource.

In 2016 the regional exploration program expanded to cover the remaining areas of the Bowser Property. The comprehensive regional exploration program has included the collection of over 15,000 samples, regional mapping, prospecting, airborne geophysics, ground geophysics, hyperspectral mapping, and data compilation. To date, the program has resulted in the identification of high-priority targets across the Bowser Property, including a potential Eskay Creek style volcanogenic massive sulphide (VMS) system in the A6 Zone, a structurally controlled intrusion-related gold system at the Koopa Zone, a porphyry copper-gold system in Haimila, and epithermal system in the Tuck and American Creek Zones.

A6 ZONE

The A6 Zone is located approximately 14 kilometers northeast of the Brucejack Mine. A prospecting and mapping program in 2018 outlined an area with stratigraphy consistent with a paleo-rift environment, favorable to the formation of Eskay Creek-style VMS systems. Drilling in 2019 included 17 drill holes totaling 8,340 meters and identified a buried rhyolite dome capped by a mudstone unit locally anomalous in arsenic and mercury. The rhyolite dome is up to 200 meters thick, at least 500 meters wide and 2 kilometers long, and remains open to the north and south. The rhyolite is intensely sericite altered, hosts pyrite stringer zones, and locally hosts anomalous copper and silver values. In two drill holes peripheral to the rhyolite, narrow intersections of high-grade silver and copper mineralization were found. The alteration and geochemistry further indicate potential for hosting an Eskay Creek style VMS system at A6.

KOOPA ZONE

The Koopa Zone is located approximately 30 kilometers east-southeast of the Brucejack Mine, hosts a structurally controlled quartz, pyrite and arsenopyrite vein system that cross-cuts sericite altered Iskut River Formation. The trace element geochemistry is indicative of an intrusion-related gold system. A total of 5,771 meters of drilling in 13 holes was completed in 2019, testing along strike to the northwest from the 2018 drilling. This drilling defined a 300 meter long deformation zone that hosts low-grade gold. The mineralized zone is northwest-southeast trending and is open to the northwest and at depth.

HAIMILA ZONE

The Haimila Zone is located approximately 20 kilometers southeast of the Brucejack Mine where surface sampling over the previous two field seasons had identified numerous discontinuous quartz-sulphide veins with highly anomalous values of gold and copper. On the west side of the Haimila Glacier, these veins are associated with zones of strong propylitic and phyllic alteration, which are believed to be porphyry-related. In 2019, two drill holes totaling 531 meters tested the alteration zone. Both holes intersected up to 100 meters of phyllic alteration with anomalous values of gold and copper.

AMERICAN CREEK ZONE

Several gold and silver epithermal targets have been identified in the American Creek Zone, located approximately 25 kilometers southeast of the Brucejack Mine. The American Creek valley is dominated by kilometer-scale north-south structures and localized east-west stockworks, which host elevated gold values of up to 62.5 grams of gold per tonne in rocks of the Lower Hazelton Group, Unuk River Formation, the same formation that hosts the Brucejack Mine. In 2018, drilling intersected broad zones of low-grade mineralization at the north end of the American Creek Zone (Lillianne showing) and an upper expression of a polymetallic epithermal vein system near the center of the American Creek Zone (Virginia K showing). Follow-up drilling in 2019 intersected similar mineralization at Lillianne, but failed to intersect any significant mineralization at Virginia K.

TUCK ZONE

The Tuck Zone is located 7 kilometers south of the Brucejack Mine. A bed of intensely quartz-sericite-pyrite altered andesitic volcanics of the Unuk River Formation hosts low grade gold in pyrite. The showing is part of a linear trend that includes Snowfield, Brucejack, and Bridge Zone along the eastern margin of the Brucejack Fault. Five drill holes completed in 2019 tested a 400 meter long section of the zone, all of which intersected a flat lying bed of intensely altered volcanics that contained low grade gold associated with pyrite.