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Mountain Boy drills 4.57 m of 11.56 g/t Au at Dunwell
2012-04-27 17:04 ET - News Release
Glad to see we are finally seeing some drill results from MTB's 100% owned properties.
Mr. Ed Kruchkowski reports
HIGH GRADE GOLD ZONE DISCOVERED BENEATH DUNWELL MINE WORKINGS
Mountain Boy Minerals Ltd. has released final assay results for all drill holes drilled in late 2010 to 2011, testing for depth extension of the Dunwell gold-silver-zinc mineralization.
Highlights of these latest results included: 4.57 metres grading 11.56 grams per tonne gold, 135.2 g/t silver, 0.14 per cent lead and 0.40 per cent zinc in DDH-2010-32.
The Dunwell mine is located 7.5 kilometres northeast of Stewart on the north side of Glacier Creek and two kilometres off paved Highway 37A. The deposit consists of a series of quartz and quartz-breccia veins hosted in thin-bedded argillite, siltstone and greywacke of the Middle Jurassic Salmon River formation (Hazelton group). Andesitic tuffs of the underlying Lower Jurassic Unuk River formation outcrop to the east of the veins.
The veins are developed in the Portland Canal fissure zone. This zone of faulting and shearing trends north, dips steeply west and hosts a vein system that extends southward for 6.5 kilometres from the Victoria/Dandy occurrence to the north, through the Dunwell mine across Glacier Creek, to the Ben Bolt occurrence.
The deposit consists primarily of two veins, the Sunbeam vein to the north and the Dunwell (No. 23) vein to the south, with a number of other less important veins. The veins are developed en echelon adjacent to a major north-striking, west-dipping fault zone (West fault). The veins are commonly situated along one or both sides of parallel lamprophyre dikes, which are up to 0.6 metre wide. Mineralization consists of lens, disseminations, and stringers of pyrite, galena, sphalerite and tetrahedrite, with minor chalcopyrite, native silver and argentite in a gangue of quartz and minor calcite. Locally, the Dunwell vein contains up to 75 per cent sulphides. The mineralization is more intense, where the veins are intersected by fractures of the West fault zone. Between 1926 and 1937, 45,657 tonnes were produced averaging 6.63 grams per tonne gold, 223.91 grams per tonne silver, 1.83 per cent lead, 4.01 per cent zinc and 0.056 per cent copper. Results from this drilling indicate an extension to the mineralization mined previously. A total of 57 holes tested in this area, with results released up to hole 16. Drilling tested for depth and lateral extensions of mineralization previously mined. Results indicate that mineralization is open along strike and to depth below the historical mine workings. Drill-indicated intersections are considered true width as the zone is dipping at 45 degrees and drill holes are intersecting at 90 degrees to the zone.
Assay results for the drilling are shown in the attached table.
DRILLINGS RESULTSDDH No. From (m) To (m) Length (m) Au g/t Ag g/t Pb % Zn % Cu %D-4-16 218.6 230.34 11.74 3.13 48.43 0.68 0.35 3.07Incl 221.65 233.78 2.13 8.08 66.23 0.12 0.47 4.09Incl 225.91 227.74 1.83 6.54 49.75 0.09 0.98 6.9D-4-17 216.77 230.18 13.41 3.62 33.79 0.05 0.21 1.96Incl 220.27 222.71 2.44 5.91 63.86 0.12 0.41 2.8D-4-18 219.97 220.73 0.76 1.16 28.3 0.04 0.21 1.9and 224.39 225 0.61 1.8 39.1 0.06 0.23 0.63D-4-19 231.4 232.47 1.47 8.06 68.4 0.17 0.2 4.21D-4-21 113.81 114.63 0.82 1.69 43.9 0.07 0.76 2.83and 244.66 246.34 1.67 8.04 97.53 0.37 0.24 6.27D-4-22 247.01 248.41 1.40 2.1 93.07 0.59 0.23 3.13D-4-24 107.01 109.45 2.44 4.27 448.2 0.04 0.11 0.1and 112.65 114.33 1.67 3.04 274.3 0.40 4.19 18.97D-4-25 111.13 111.74 0.61 1.86 <0.2 <0.01 <0.01 <0.01and 239.63 246.80 7.16 1.66 83.4 0.17 0.40 2.27D-4-30 235.37 238.72 3.35 1.6 20.6 0.04 0.17 0.90and 270.73 271.95 1.22 6.92 61.2 0.01 0.26 0.31D-4-31 273.54 274.46 1.92 1.82 131.88 0.01 0.06 0.11D-4-32 165.24 169.82 4.57 11.56 135.2 0.008 0.14 0.40D-4-33 265.85 267.68 1.82 1.39 97.53 0.16 0.17 1.64D-4-35 171.95 174.70 2.74 2.85 124.2 0.01 0.18 0.08and 269.05 271.19 2.13 3.64 193.14 0.60 0.44 9.63D-4-36 267.84 271.34 3.51 2.65 76.5 0.16 0.39 1.18D-4-38 271.34 275 3.65 1.33 122.84 0.81 0.47 6.7D-4-40 282.32 283.54 1.22 4.61 23.2 0.03 0.44 0.46D-4-41 290.24 292.07 1.83 3.05 125.97 0.33 0.23 5.57D-4-42 270.73 271.74 1.01 1.97 56.5 0.01 0.30 0.34D-4-43 289.94 291.46 1.52 1.50 7.60 0.01 0.07 0.14D-4-44 288.93 290.70 1.77 10.28 71.60 0.02 0.31 0.66D-4-46 284.6 287.2 2.59 5.75 26.98 0.02 0.30 0.9and 298.02 299.39 1.37 6.6 155.4 0.04 0.30 1.02D-4-47 299.70 300.91 1.22 1.66 18.8 0.02 0.47 0.51D-4-50 267.68 270.58 2.89 5.70 68.05 0.19 1.31 2.92and 273.78 275.15 1.37 17.91 140.53 0.11 0.89 2.02and 294.36 295.58 1.22 1.83 12.9 0.01 0.12 0.76D-4-51 277.13 278.66 1.52 2.04 62.08 0.11 0.53 1.16and 282.93 283.69 0.76 2.91 67.40 0.07 0.42 3.32and 297.71 299.39 1.68 3.40 158.90 0.009 0.14 0.31D-4-52 11.59 12.20 0.61 2.47 18.50 0.02 0.21 1.38D-4-53 137.35 137.65 0.3 5.65 16.2 0.01 0.23 2.28and 224.7 226.07 1.37 2.09 7.8 0.02 0.18 0.31D-4-55 22.26 23.78 1.52 5.96 11.2 0.01 0.01 0.01and 134.60 136.28 1.67 1.84 2.90 0.01 0.07 0.20
Ed. Kruchkowski, PGeo, a qualified person under National Instrument 43-101, is in charge of exploration on behalf of the company.
Drilling has commenced on the Red Cliff project to test the Lower Montrose zone, which has never been tested by drilling. The zone has been intersected in the initial three holes, and mineralization in these holes is similar to that described in historical reports.
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