MAYO LAKE MINERALS -
BLUE SKY PROJECTS
Mayo Lake Area Geology
Mayo Lake Area Mineralization
PROJECT - TRAIL-MINTO
Trail-Minto is composed of 179 contiguous quartz claims covering an area of 35.5 square kilometres near the community of Mayo, Yukon, Canada on NTS map sheets 105M. The claim group is over 15 kilometres long and covers the highlands west of Silver Trail and south of Mouth Haldane. Access to Trail-Minto is provided by two pre-existing seasonal roads that cut across the northern and southern edges of the claim group. The roads connect to Yukon’s highway network, 2.5 kilometres east of the property.
Historical placer mining on two creeks draining from Trail-Minto has occurred Roaring Fork Creek draining the southern portion of the property and Ross Creek draining the northern part of the property.
The area has been subjected to multiple glaciations. It lies beyond the western limit of the most recent Pleistocene glaciation, the McConnell Glaciation, whose western margin covered the low slopes immediately east of the property. Minto Creek is filled with glacial drift and alluvium. The highlands were probably covered by cold-based ice during an earlier glaciation, resulting in minimal glacial transport .other than where meltwater has crossed the highlands. Outcrop is sparse on the property, rarely exceeding 5 per cent in any area.
Trail-Minto is underlain by phyllites, schists and carbonates of the Hyland Group metasediments intruded by felsic dykes. The Roaring Fork Stock, which underlies the south part of the Trail-Minto claim group, and adjacent altered wall rock has a similar age to the Tombstone Intrusive Suite of which the Dublin Gulch stock, which hosts Victoria Gold’s Eagle gold deposit., and can be identified on diagrams of the airborne magnetics (Figure 4). The magnetics showed patterns indicative of (i) an underlying N-S oriented intrusion or alteration related to the same intrusion in the southern two-thirds of the property and (ii) a broader E-W oriented buried intrusion in the northern one-third of the property. The N-S oriented pattern relates to the Roaring Fork Stock and the E-W pattern probably relates to a buried intrusion as witnessed by small mafic and granodiorite plugs outcropping in this area.
Soil sampling has outlined a number of WNW trending Au+As+Sb anomalies in the northern part of the property (14). Soil sampling completed over the southern part of the property adjacent to the Roaring Fork Stock and its buried projections is characterized by Au in soil anomalies that generally have a N-S orientation with some oblique variations (Figure 4). Contour for other elements seem to define patterns that reflect the presence of the Roaring Fork Stock, alteration of the Stock and adjacent wallrock mineralization. The gold mineralization appears to have been transported and precipitated along faults and joints within the Roaring Fork Stock and the adjacent altered wallrock; the mineralization, faults and joints being in part induced by the Stock. Gold mineralization is expected to be intrusion related, such as at Victory Gold’s Eagle deposit, or structurally controlled intrusion related mesothermal or epithermal gold bearing veins and stockworks.
MLM has completed ground magnetics over Au in soil anomalies, which are located within, and adjacent to, the Roaring Fork Stock. In 2019, MLM plans to trenching across the anomalies to determine priority targets for subsequent drilling. Further, a large area as defined by airborne magnetics, geology and adjacent soil geochemistry will also be sampled for determination of multielement, including Au, content in soils.