Donjek

Overview

  • Donjek Property Location
    Donjek Property Location

Property Location and Ownership

The Donjek Property is located approximately 15km south of the Donjek River Bridge on the Alaska Highway, 125km northwest of the village of Haines Junction, and 285 km northwest of Whitehorse, Yukon Territory. The Property is situated in the Whitehorse Mining District, and access is currently by helicopter from a staging area located within 15km of the Property at the Donjek River Bridge on the Alaska Highway.

The Donjek property consists of a contiguous block of 169 quartz claims 100% owned by Victoria Gold Corp. covering an area of approximately 3,500 hectares.

Exploration

The Donjek Project partly covers the Sexsmith drilled prospect (MINFILE# 115G 033), a MINFILE occurrence as documented by the Yukon Geological Survey (Deklerk, 2009). In 1953 the area was staked by Canalask Nickel Mines Ltd. to cover an aeromagnetic anomaly, discovered by Lundberg Exploration Ltd. during a regional survey following the discovery of the Wellgreen Deposit, and explored with ground magnetic and self-potential surveys. The anomaly, situated in an overburden covered area north of Wolverine Creek near its confluence with the Donjek River, returned zones of anomalous self-potential and was subsequently drilled, however no report on these activities was ever filed with the Yukon Government. Old core at the showing reportedly consists of fine grained siltstone (Davidson, 1988) and/or ultramafic rock (Duncan and Tupper, 2002a&b) containing disseminated chalcopyrite.

The area was re-staked in 1973 by the Nickel Syndicate (Canadian Superior Exploration Ltd., Aquitaine, Home Oil Ltd. and Getty Minerals Ltd.) (Deklerk,2009). Ground-based geophysics by Harjay Exploration Ltd. in 1988 identified a northwest-trending VLF-EM anomaly coincident with the west edge of a strong magnetic high which appears to outline a contact (Davidson, 1988).

An airborne electromagnetic/resistivity/magnetic survey was completed in 1996 by Dighem for Expatriate Resources Ltd. (Chung, 1997), followed by mapping, prospecting, soil and stream sediment sampling by the Donjek Joint Venture (Expatriate and Strategic Metals Ltd.) (Duncan and Tupper, 2002a&b). This geophysical survey delineated a strong magnetic high and several moderately weak or broad conductors, and the mapping outlined pyritic mafic and ultramafic rocks, including peridotite, gabbro, diorite and andesite flows.

The claims were optioned to Midnight Mines Ltd. (Bill Harris) in 2002 and subsequently transferred to StrataGold Corporation as part of a reorganization of Expatriate Resources, with the Midnight Mines Ltd. option retained (Deklerk, 2009).

In 2004, re-interpretation of 1965-6 Geological Survey of Canada total magnetic field data by Aurora Geosciences Ltd. identified a large magnetic anomaly interpreted as an ultramafic source (Power, 2004).

In 2011, a total of 5-man days were spent on the Donjek Project consisting of mapping and prospecting with concurrent rock geochemical sampling.

In 2015, an aeromagnetic survey was conducted over the area by a Yukon Geologic Survey and Kluane First Nations partnership with survey oversight and data processing as part of the Geo-mapping for Energy and Minerals Program of Natural Resources Canada.

Geology and Mineralization

The Kluane Ultramafic Belt is considered one of the largest nickel-copper-PGE mineralized mafic-ultramafic trends in North America, second only to the nickeliferous intrusions from the Circum-Superior Belt, which includes the Thompson Nickel Belt. Similarities in the geologic setting have also been drawn to that of the Noril'sk Talnakh region of Siberia, the world’s largest nickel-copper-PGE producing area.

The Wellgreen deposit of Wellgreen Platinum Ltd. represents the most advanced property within the Kluane Ultramafic Belt, with historic production (1972-1973) of 171,652 tonnes grading 2.23% Ni, 1.39% Cu, 0.073% Co, and 2.15 g/t Pt and Pd and a resource outlined in the late 1980's of 49.9 million tonnes grading 0.36% Ni, 0.35% Cu, 0.51 g/t Pt and 0.34 g/t Pd. The Wellgreen deposit emphasizes the potential for large tonnage nickel-copper-PGE deposits to be hosted within the Kluane Ultramafic Belt.

The Donjek Project is underlain by a sequence of Pennsylvanian(?) and Permian sedimentary rocks of the Hasen Creek Formation, overlain by volcanic rocks assigned to the Upper Triassic Nikolai Formation. The sequence is intruded by ultramafic and gabbroic rocks of the Triassic age Kluane mafic-ultramafic complex and diorite, possibly of the Cretaceous age Kluane Ranges suite.

Minor andesite porphyry encountered may represent volcanic rocks of the underlying Station Creek Formation, but could also be volcanic intervals within, or Nikolai dykes cross-cutting, the Hasen Creek Formation. Numerous gabbro-peridotite exposures of the Kluane Ultramafic suite were encountered along Wolverine Creek, with one definite sill trending 040°/50°SE, and other exposures possibly constituting part of a larger body. Two occurrences of diorite were noted, which either may belong to the Cretaceous Kluane Range Suite, or represent a less mafic variant of the Kluane Ultramafic suite. The higher ground north of Wolverine Creek is underlain by volcanic rocks of the Upper Triassic Nikolai Formation. The dominant lithology here is amygdaloidal basalt with lesser andesite tuff–breccia.

The Donjek Project covers magnetic and electromagnetic anomalies within the same sequence of Pennsylvanian to Triassic rocks which host the nickel-copper-platinum group element (Ni - Cu - PGE) package of the Wellgreen deposit, 12 km to the southeast. The Property partly covers the Sexsmith MINFILE drilled prospect as documented by the Yukon Geological Survey as MINFILE# 115G 033. Old core at the showing (located in racks north of Wolverine Creek near its confluence with the Donjek River) reportedly consists of fine grained siltstone and/or ultramafic rock containing disseminated chalcopyrite.

Conclusions

In the 2016 program, the soil assays for copper and nickel showed a good geochemical response with an anomaly striking to the northwest. This orientation follows a prominent ridge on the property and reflects the regional orientation of the mapped bedrock. The northwesterly orientation also mimics the general trend of the nearby Wellgreen deposit. Assays for the platinum group elements (PGE) did not produce a good geochemical response which may be the result of extensive overburden and lack of exposure in the area, a lack of PGE’s in the underlying bedrock and/or a combination thereof.

Further prospecting and soil sampling should be conducted in the north, west, and south west of the claim block. However, prior to the next sampling program an orientation survey testing Mobile Metal Ions (“MMI”) responses, in addition to a soil profile review including the testing of distinct soil horizons with traditional Aqua Regia should be conducted to determine what technique is most useful. For areas with extensive overburden, as in the western and southern portion of the Donjek claim block, a MMI soil survey may also be useful. The MMI survey could pick up ultra-low concentrations of pathfinder elements (Ni, Cu, PGEs) and possibly determine indications of buried mineralization.

The 2015 YGS/Kluane First Nation airborne geophysical survey over the district covered much of the Donjek claims. Further interpretation of the new aeromagnetic survey over the Property is recommended to outline any major structures or contacts. The geophysics in conjunction with the soil surveys should be used to determine future exploration potential on the Property.

Maps

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