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Diamonds North Resources Ltd. announces high grade copper, silver, and bismuth assays from recently discovered showings on its Hepburn copper-silver project located in the Northwest Territories. Grab samples have returned up to 19.8% copper, 123.0 grams per tonne silver, 0.20% uranium and 0.17% bismuth.
These showings are located along the southern margin of a geophysical anomaly defined by a 3.5 kilometre by 1.5 kilometre magnetic high and semi-coincident radiometric anomaly (uranium, potassium and thorium) detected by airborne surveying. Grab samples from the area are shown in the table below. Anomalous gold values ranging from 72 ppb to 258 ppb suggest the system is gold bearing.
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Copper Silver Bismuth Au
Sample (%) (g/T) (%) U (%) (ppb)
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1 19.8 72 0.17 0.003 72
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2 7.6 32.5 0.124 n/a 216
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3 5.8 31.1 0.04 0.009 150
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4 4.12 123 0.03 0.03 258
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5 0.14 4.2 n/a 0.2 2
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"With minimal cost we have identified a large area with numerous high grade copper, silver and bismuth showings, suggesting a significant mineralized system exists on the Hepburn project. Now, our exploration objective is to delineate areas with potential for large deposits," says Mark Kolebaba, President & CEO of Diamonds North.
Trench sampling on the north flank of this geophysical anomaly returned values of up to 2.9% copper and 218.5 grams per tonne silver over three metres (News Release NR09-08, dated May 21st, 2009).
The mineralization occurs in breccias, vein stockworks and faults. Alteration minerals include potassium feldspar, hematite, magnetite, carbonate, actinolite, chlorite, epidote, quartz, sericite and albite. Important pathfinder elements for iron-oxide deposits such as cerium, lanthanum, flourite and barium are elevated in many rock samples collected by Diamonds North.
The next exploration program for the Hepburn copper-silver project will entail ground geophysics, soil sampling and detailed mapping designed to delineate areas of mineralization for drilling.
The Hepburn project is 100% owned by Diamonds North Resources with the exception of the uranium rights that are held by Uranium North Resources Corporation in accordance with a plan of arrangement agreement signed in 2006.
Graham Gill (P. Geo) is Diamonds North's qualified person reviewing this project. Mr. Gill is responsible for the design and conduct of exploration programs and the verification and quality assurance of analytical results. All assay results are provided by Saskatchewan Research Council Laboratory.