Project Geology

 

The property geology is dominated by rocks of the Early Jurassic Texas Creek Intrusive Suite which are interpreted as coeval intrusive equivalents to extrusive Hazelton Group volcanics which host significant mineral occurrences in the Golden Triangle. This synvolcanic intrusive is possibly related to the feeder intrusive to the proximal Premier and Big Missouri epithermal deposits. Multiple phases of this intrusive suite were identified on the Property during 2021 reconnaissance mapping, including the ‘Premier Porphyry’, a distinct megacrystic orthoclase-rich intermediate porphyritic unit strongly associated with gold mineralization in the area, including the nearby Silver Coin and Big Missouri deposits which show similarities to Cantoo in geologic setting, vein-style, and dip angle (see Figure 1).

Figure 1: Regional cross section with simplified geology, structure, and infrastructure, showing the location and vein orientations of Big Missouri, Silver Coin, and Cantoo.

Polymetallic quartz-sphalerite-galena-tetrahedrite-pyrite-chalcopyrite veins located on the property have historically been analyzed using lead isotope studies and interpreted as being Jurassic in age, suggesting a relationship between mineralization and the host Texas Creek Intrusive. Localized shearing and hydrothermal alteration have been documented at the property which are likely related to gold-silver and base metal mineralization. Local exposures are present with strongly altered intrusive hosting high-grade gold-silver mineralization, often with significant copper, molybdenum, barium, lead, and zinc. The geological target and exploration concept of the property is similar to the large intrusive-related and porphyry copper and gold deposits in the region such as Snowfield, Treaty, Kerr, and Mitchell, located adjacent to the high-grade Brucejack Gold Mine to the north.

Figure 2: Cantoo Upper Vein exposure in outcrop with historic sample, adit, vein, and assay locations.

Two prominent vein systems (see Figure 2) have been historically described and were sampled by United States Government geologists in the 1990’s who collected a total of 19 samples, six of which assayed over 1.0 g/t gold. The upper ‘100 foot wide’ gold-rich quartz vein returned assays including: 27.74 g/t Au and 13.54 g/t Ag. This vein was observed in outcrop by Blackwolf geologists during 2021 helicopter reconnaissance as well as in float at the base of the cliffs (See Figure 3). A lower silver-rich vein was also described historically, with individual assay results including: 18.48 g/t Au, 1206 g/t Ag, and 2.48% Cu; 9.24 g/t Au, 1173 g/t Ag and 1.98% Cu. Abundant vein material from this structure was observed and sampled by Blackwolf geologists in scree at the base of the cliffs (See Figure 3).

2021 Field Program

During the 2021 Hyder area reconnaissance field program, Blackwolf crews conducted two days of field work on the property, along with one day of helicopter reconnaissance during which the veins and historic adits were located. 41 soil samples on a reconnaissance line on Cantoo Mountain, along with 28 rock samples on Cantoo Mountain and in float at the base of the cliffs (see Figure 3). Limited grab samples taken in 2021 from vein material in scree at the base of the cliffs returned assays up to 30.4 g/t Ag, 2860 g/t Ag and 5.8% Cu with individual samples including:

B0008129: 30.4 g/t Au, 2860 g/t Ag, 5.8% Cu, 0.95% Pb, 8.81% Zn

B0008131: 0.82 g/t Au, 418 g/t Ag, 0.41% Cu, 16.2% Pb, 0.08% Zn

B0007963: 1.99 g/t Au, 9.7 g/t Ag, 0.27% Cu, 1.06% Pb, 0.24% Zn

Blackwolf plans to target these vein structures in 2022 exploration drilling.

Figure 3: Annotated 3D satellite imagery (courtesy of FatMap) of Blcakwolf’s Cantoo property with projected vein locations, historic adit locations, claim boundaries, and 2021 assays of note.

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