Aya Gold & Silver Inc. press release
Copper Reefs Gold Rock Vein Extended, returns 2.0 m of 25.54 g/t
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Copper Reef’s Gold Rock Vein Extended, returns 2.0 m of 25.54 g/t
Jul. 6, 2009 (TheNewswire.ca) --
Toronto, Ontario, July 6, 2009….Copper Reef Mining Corporation ("Company")(CZC.CNSX) is pleased to announce the further results from its drilling on the Gold Rock vein from our 100% owned Gold Rock Property near Snow Lake Manitoba.
Drill hole GR-08-78 reporting 25.54g/t gold (0.75 oz/ton) over 2.0 m (6.6 ft). This intersection is the most northern intersection on the Gold Rock Property and extends the vein by an additional 10 m for a total length of 345 m. The previous most northern intersection released assayed 81.73 g/t (2.38 oz gold/ton) over 1.6 m (5.2 ft.), 10 m to the south. The hole intersected the vein at approximately 20m (66.0 ft) vertically below surface and lies along a 70 m (230 ft) long shoot (lens) at the very north end of the Gold Rock vein. Results from four additional holes are given in the table below. This northern shoot is separated from the 60 m (196 ft) long north-middle shoot (lens) reported in the June 19th ,2009 press release by a 10-20 m section of unmineralized vein. The southern half of the Gold Rock vein has yet to be drilled. For a drill plan locating these holes please refer to our web site under Gold Rock at copperreef.com.
Coarse gold was intersected in over 50% of the drill holes, although the nugget effect has affected the results of drilling giving medium grade intersections to very high grade intersections as in the drill holes above 15 grams gold per tonne .The Gold Rock vein lies along a quartz veined shear 2 km long, with the North Star deposit at the south end and the Gold Rock Vein at the north end of the shear with very little drilling in between. True widths of the intersections in these holes vary between 65-75% depending on the dip. Copper Reef concentrating its most recent drilling on the north half of the high grade Gold Rock Vein.
Drill Hole Dip Release From To Core Length(m) g/t gold oz/ton gold GR-08-31 -45 previous 15.15 16.75 1.6 m 81.73 2.34 GR-08-64 -60 new 35.7 37.2 1.5 m 17.44 0.51 GR-08-68 -45 new 44.7 46.0 1.3 m 15.27 0.45 GR-08-71 -72 new 46.34 47.54 1.2 m 7.98 0.23 GR-08-72 -60 new 33.3 34.5 1.2 m 3.01 0.09 GR-08-78 -77 new 23.5 25.5 2.0 m 25.54 0.75
Quality Control
The Company employs QA/QC protocol on all aspects of its analytical procedures. Core samples are sawn and one half of the HQ core is restored to the core boxes for future reference and one half sent for analysis. Samples of veining or mineralization are taken in approximately 50 cm intervals or less. Sample preparation and analytical work is conducted at TSL labs in Saskatoon, Saskatchewan utilizing fire assaying with a two assay ton charge, with an AA finish. In addition pulps of the samples are analysed using a multi-acid digest/ ICP-AES and AAS techniques for trace elements. Gold assays above 0.5 g/ t are then re-assayed by the screen metallic method where the entire sample of the sawn core sent for assay is pulverized and screened with a 150 mesh screen to remove the coarse gold and is then assayed separately by fire assay technique, the remaining pulverized core material that passes through the screen will be assayed by four separate two assay ton charges. The average of the 4 assays will be combined, on a weighted basis, with the assay of coarse gold that was captured by the screen to obtain an overall average grade. This method should give a high level of reliability in representing the contained gold in the core. The large size of core and the closely spaced holes should provide a reasonable sample size and spacing to represent the grade of the vein.
Commercially prepared standards representing 2 ranges of gold grades are inserted at intervals of 1 in 10 samples. A blank rock sample of granite is inserted every 20 samples. Stephen Masson M.Sc., P.Geo President of Copper Reef is the qualified person for the Company. He has reviewed the drill core and confirms the assay results.
On Behalf of the Board of Directors
."SIGNED"
Robert N. Granger QC
Chairman
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