Kivalliq Energy Corporation (TSX VENTURE:KIV) has announced the release of the first NI 43-101 compliant Mineral Resource estimate for the Lac Cinquante uranium deposit, located within Kivalliq's 225,000 acre Angilak Property in Nunavut, Canada.
The Company has received a summary report from Robert Sim of SIM Geological Inc. that describes an Inferred Mineral Resource Estimate of 810,000 tonnes grading 0.79% U3O8, totalling 14.15 million lbs U3O8 (17.5 lbs U3O8/tonne) at a 0.2% U3O8 cut-off grade.
"The release of the first 43-101 compliant mineral resource estimate for the Lac Cinquante uranium deposit is a major milestone for the Company. It provides Kivalliq with a strong base from which to build additional uranium resources in 2011, through further drilling at Lac Cinquante and at other high-priority target zones within the Angilak Property," stated Kivalliq CEO Jim Paterson. "With a grade of 0.79% U3O8, Lac Cinquante is the highest grade compliant uranium resource in Canada, outside of the Athabasca Basin. In addition to uranium, Lac Cinquante contains significant quantities of silver, molybdenum and copper as outlined in the resource estimate. These additional metals, and a uranium spot price now exceeding US$70 per pound, are contributing factors to the potential economics of this project."
Mineral Resource Estimate
The Mineral Resource estimate for Lac Cinquante was prepared under the direction of Robert Sim P.Geo., of SIM Geological Inc. A resource model was generated using drill sample assay results from Kivalliq's 2009 and 2010 field seasons (up to October 31, 2010), and interpretation of a geological model relating to spatial distribution of uranium. At a base case cut-off grade of 0.2% U3O8, an Inferred Mineral Resource is estimated at 810,000 tonnes averaging 0.79% U3O8, containing 14.15 million pounds U3O8. For evaluation purposes, three additional metals: silver (g/t), molybdenum (%) and copper (%) have also been estimated within the resource model.
The resource model was generated using a total of 122 diamond core holes, totaling 18,260 metres drilled by Kivalliq on the Angilak Property since 2009. This drilling is comprised of 16 NQ core holes totaling 1,748 metres in 2009, and 106 NQ core holes totaling 16,512 metres in 2010. The resource model is constrained within a 3-dimensional domain representing the mineralized portion of the host mafic tuff. Drill hole samples are composited to the full width of the zone and true thicknesses are determined for each drill hole intercept. Blocks in the model measure 5x5x5 metres in size. Block grade estimates are made through ordinary kriging using length-weighted composited drill hole intervals. Only the portion of those model blocks within the mineralized tuff domain are included in the final mineral resource estimate. Tonnages are calculated using a constant bulk density of 2.8t/m3. Model blocks are included in the inferred category if they form reasonably continuous zones of mineralization within a maximum distance of 50 metres from a drill hole intercept.
The Lac Cinquante is considered to be an early stage project, therefore little is known about its potential mining or metallurgical characteristics. However, the resource is considered to exhibit reasonable prospects for economic extraction, and the base case cut-off threshold of 0.2% U3O8 is considered appropriate based on its location and other assumptions derived from deposits of similar type and scale. A technical report will be filed on SEDAR within 45 days.
Potential for Resource Expansion
Lac Cinquante remains open along strike to the east, west and at depth, demonstrating excellent potential to increase the size of the resource at this deposit. In addition, two holes drilled in 2010 encountered significant uranium, but were not included in this initial estimate due to their distance from the resource drilling. Step-out drill hole 10-LC-013, intersected 0.21% U3O8 over 1.96 metres, approximately 500 metres west of the resource drilling. Hole 10-NE-001 tested a target within the "Blaze Zone" 1.8 kilometres west of Lac Cinquante, yielding two distinct intervals of 0.83% U3O8 over 1.4 metres and 0.66% U3O8 over 2.4 metres. Both holes clearly indicate that additional uranium resources may be found outside the current Lac Cinquante deposit area.
Geology of the Lac Cinquante Uranium Deposit
The Lac Cinquante uranium deposit is structurally and stratigraphically controlled within a graphite-chlorite tuffaceous metasediment interlayered in Archean basement metavolcanics. Mineralization consists of disseminated pitchblende with sulphides and as fracture controlled, brecciated, hematite- pitchblende-quartz-carbonate veins within the tuff. Uranium and sulphides occur in widths up to 7.9 metres within a host unit up to 11.4 metres wide. The deposit strikes southeast at 110 to 120 degrees and dips south, variably between -45 and -80 degrees. Mineralization occurs as southwest plunging shoots within the plane of the tuff unit, which has been traced by drilling to a vertical depth of approximately 270 metres and along a strike length of 1300 metres. Lac Cinquante is described as a basement hosted, vein-hydrothermal type, unconformity associated uranium deposit.
The information in this release related to the mineral resource estimate has been approved by Robert Sim, P.Geo of SIM Geological Inc., who is an independent Qualified Person as defined under National Instrument 43-101. Jeff Ward, P.Geo, President of Kivalliq and a Qualified Person for the Company has reviewed and approved the information contained in this release.
Source: Kivalliq Energy Corporation