The Séquoi Property covers a large multi-lobed magnetic anomaly that Northern Shield interprets to be a flat-lying, dish-shaped mafic-ultramafic intrusion and perhaps related to Huckleberry and part of the feeder system to the sills of the Labrador Trough. Exhaustive analysis of the historic lake bottom sediment sample results and glacial history of the area suggests that Séquoi lies at the head of a very large and distinct Ni-Cu-PGE dispersion train that dominates the southern Labrador Trough.
The Séquoi Target
This recently acquired property is located 10km east of Huckleberry and consists of 73 claims.
Lake Bottom Sediment samples collected by the Quebec government over the years show the southern portion of the Labrador Trough to be highly anomalous in Ni and Cu. It has often been assumed that the Lac Retty Deposit and the peridotite sill that hosts it, could be source for the Ni and Cu anomalies.
Northern Shield believes otherwise…
The glacial history of the area is complex with ice movement often reversing direction over time. However, Northern Shield believes the dominant ice direction in the area is southerly rotating southeastward not northwards as is currently assumed. While the Lac Retty area no doubt does influence the Ni and CU in the LBS samples in cannot be the cause of all the Cu and Ni anomalies, especially in light of Northern Shield’s interpreted ice direction.
Filtering the raw LBS data through multi-variate analysis helps to create a clearer picture as it removes the effect caused by lithologies and general high background values. Individual thematic plots of residual copper and nickel both show a more convincing dispersion from a source to the northwest of the anomalies. The dispersion yet again becomes even more refined when only samples with both highly anomalous Ni AND Cu in the sample are plotted. The distribution of such samples shows a very compelling case that the Ni and Cu in the LBS samples have been dispersed from the target underlying the Séquoi Property.
The Séquoi Property covers a large multi-lobed magnetic anomaly that Northern Shield interprets to be a flat-lying, dish-shaped mafic-ultramafic intrusion and perhaps related to Huckleberry and part of the feeder system to the sills of the Labrador Trough. Within this anomaly are small pockets of higher magnetism, some of which coincide with electro-magnetic anomalies identified from a mid-1980s, government sponsored airborne survey. Northern Shield believes these conductive and magnetic pockets could be pools of massive sulphides filling traps along a conduit very similar the Noril’sk-Talnakh deposits in Russia.
Residual Ni+Cu dispersion
Residual Ni dispersion Residual Cu dispersion