Seabridge Gold

Iskut: EXPLORATION

Exploration on the Iskut Property has historically focused on either large bulk-minable targets like the Bronson Slope deposit or narrow high-grade gold targets like the Snip and Johnny Mountain mines. During the Iskut Property’s more than 100 year history, numerous prospectors, exploration and operating companies have conducted work on the property in piecemeal fashion. With the consolidation of land holdings by Skyline Gold (subsequently SnipGold) ,a more comprehensive exploration effort became possible for the property. The opportunity now exists to evaluate the property as hosting a series of related mineralizing events with district potential.

Historical work demonstrates that inexpensive geophysical tools and surface sampling technologies are effective for identifying and refining drill targets. In its evaluation of earlier operators’ airborne geophysical surveys, Skyline recognized that these tools can help refine targeting on prospective ground. Skyline re-flew parts of the older airborne magnetic and electromagnetic surveys and expanded the survey to cover additional areas. Results from that work identified several prospective targets in the Johnny Flats, C-1 and Burnie areas. Most of these airborne anomalies are now recognized as drill-ready exploration targets with potential for deposits similar to the historical Snip Mine (Figure 1).

Following up on historical surface sampling, Skyline conducted an extensive trenching and soil sampling program on the Bronson trend (Figure 2: Table 1). In conjunction with that work, ground VLF-EM surveys were conducted to refine the Bronson Slope deposit in advance of Skyline’s drilling. After completing the 2011 drill program, a borehole pulse electromagnetic survey (BHEM) was undertaken. Results from these surveys have refined the limits of the Bronson Slope deposit area and indicated potential for eastern extensions of the Snip Mine.

Successful use of surface geochemistry on both rock and soil samples in the Bronson Slope and Johnny Flats areas warranted the expansion of this program to several other targets. Additional positive results were obtained in the Johnny Mountain (Figure 3) and Bug Lake (Figure 4) areas. The latter target shows an extensive soil geochemical anomaly around the historical underground mine which remains largely untested by drilling.