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Northern Saskatchewan forms part of the Churchill Province of the Canadian Shield. It has been subdivided into a series of lithostructural crystal units and the section containing the Seabee Mine has been termed the Glennie Lake domain. This domain includes both sediment- and volcanic-derived rocks. The mine is located within the eastern contact area of the Laonil Lake Intrusive Complex, a roughly triangular shaped gabbroic intrusive body. All rocks are deformed and have been regionally metamorphosed at conditions of middle amphibolite facies. The Seabee property is underlain by the Laonil Lake gabbro. Numerous quartz-tourmaline bearing mineralized shear structures traverse the complex forming a complicated shear system. The vein structures dip steeply, generally strike at 70 degrees and exhibit extreme splay structures. Although the predominant trend is around 70 degrees, sub-parallel to the Laonil Lake Shear Zone, northwesterly structures have also been encountered. Vein mineralogy is dominantly quartz with pyrite, pyrrhotite and chalcopyrite with accessory tourmaline and carbonate. Silicification is the most common alteration type. Gold mainly occurs in the free form as flakes and films replacing pyrite or at sulphide boundaries. The higher grade gold values are often associated with sections rich in sulphides or at vein junctions.
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