The deposit was drilled in 1977 by a joint venture of GCO, New Jersey Zinc, and WGM. The LIk deposit was first staked in 1976 as a result of stream geochemical sampling by GCO and New Jersey Zinc Company. In early 2010, the Lik deposit was on 296 unpatented federal mining claims, and the deposit was being explored by Zazu Metals Corporation (Gow and others, 2009 Britton, 2009 Scott and others, 2010 Zazu Metals Corporation, 2010). Host rocks are intensely silicified close to the sulfides (Gow and others, 2009). The mineralization is coeval with the deposition of the Mississippian host rocks (Gow and others, 2009 Scott and others, 2010). Sedimentary exhalative Zn-Pb (Cox and Singer, 1986 model 31a). The PEA found that acid rock drainage and metal leaching related to waste rock and storage facilities are manageable and have no large environmental or permitting issues (Matter and others, 2014). Drilling completed in 2011 contributed to a new indicated mineral resource for Lik South of 16.85 million tonnes at 8.04 percent zinc, 2.70 percent lead, and 50.1 grams of silver per tonne. The work completed by Zazu over these three years was compiled for a preliminary economic analysis (PEA), which was reported on April 23, 2014. In 2013, Zazu initiated the field portion of the acid rock drainage program, in addition to mine design, infrastructure, and metallurgical studies. The 2012 program focused on environmental baseline, acid rock drainage, and infrastructure studies, in addition to refined resource estimate, pit models, and metallurgical studies (Zazu Metals Corporation, 2012). An earlier 'reserve' estimate by Sterne and others (1984) was similar but did not meet modern standards of ore calculations, nor did it have the benefit of the more recent drilling.Zazu completed a summer field program in 2011 including exploration, infill, and geotechnical drilling metallurgy and associated environmental baseline, acid rock drainage, and infrastructure studies (Zazu Metals Corporation, 2011). There is an 'Inferred Mineral Resources' in Lik North of 1.23 million tonnes with a grade of 6.08 percent zinc, 2.12 percent lead, and 35 grams of silver per tonne and' 'Inferred Mineral Resources' of 5.18 million tonnes with a grade of 9.65 percent zinc, 3.25 percent lead, and 51 grams of silver per tonne. As estimated by Gow and others (2009), Roscoe, and by Scott and others (2010), the mineral resources in Lik South consist of 18.74 million tonnes of 'Indicated Mineral Resources' with a grade of 8.08 percent zinc, 2.62 percent lead, and 52.8 grams of silver per tonne. Numerous high-grade intercepts of zinc-lead-silver mineralization were cut in many of the drill holes. The Lik deposit is open to the north and extends south beyond the Zazu claims to the Sue prospect, which is held by the Teck company that operates the nearby Red Dog mine (DL001). The Lik South deposit is about 1,100 meters long and about 600 meters wide the Lik North deposit is about 700 meters long and about 350 wide. The Lik mineralization is cut by numerous faults, notably the Main Break Fault that drops the northern end of the deposit down about 150 meters and separates the Lik South deposit from the Lik North deposit. The Lik mineralized horizon is overlain conformably by the Permian Siksikpuk Formation. These strata and their mineralized horizons generally strike north and dip 25 to 40 degrees west. ![]() At the Lik deposit, the Ikalukrok unit consists of carbonaceous and siliceous black shale with subordinate black chert and fine-grained limestone. ![]() The Kuna Formation has two units, the Kivilina and the Ikalukrok which hosts the massive sulfide deposits in the area, including the Lik. Regionally, the Mississippian to Pennsylvanian Kuna Formation consists of at least 122 meters of thinly interbedded calcareous shale, calcareous spiculite, and bioclastic support stone, overlain by 30 to 240 meters of siliceous shale, mudstone, calcareous radiolarite, and calcareous turbidite. The Lik deposit is in Kuna Formation of the Red Dog plate of the Endicott Mountain allochthon (Gow and others, 2009 Scott and others, 2010).
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