Opawica Explorations Inc. Announces Drilling Results
VANCOUVER, BRITISH COLUMBIA -- Opawica Explorations Inc.(TSX: OPW)(“Opawica”/ the “Company”) announces mobilization of field programs on its Atikwa Lake, Ontario property and on its Matachewan, Ontario claims.
ATIKWA LAKE, Ontario; Copper-Gold
The Atikwa Lake property is located 120 road kilometers south east of Kenora, Ontario. A drill program has been mobilized consisting of three diamond drill holes located north of Opawica hole #OPW-31 which was drilled in the fall of 2006 and returned 4m of 5.10 g/t Au (79m to 83m), 3m of 7.33 g/t Au (87.5m to 90.5m) and 5m of 5.75 g/t Au (95m to 100m).
Opawica hole #OPW-31 is a new gold discovery on the Atikwa Lake property and is located approximately 800m north of the main Atikwa Lake copper-gold open pit zone which has an Inferred Mineral Resource of 3,000,000 tonnes of 1.18% Cu and 2.5 g/t Au.
The Atikwa Lake property has not been sufficiently drilled by Opawica to have economic considerations applied to them to enable such resources to be categorized as reserves. Further drilling is required to upgrade the resources to Measured and Indicated Resources and there can be no certainty that the preliminary or historic assessments will be realized. Accordingly the Company is not presently treating the Inferred Mineral Resource estimates or historical estimates as NI 43-101 Defined Resources.
MATACHEWAN CLAIMS, Ontario, Copper-Gold and Associated Mineralization
The Company has commenced ground geophysics and further surface trenching and stripping on its Matachewan claims located contiguous to the northern border of Northgate Minerals Corporations’ (TSX) Young-Davidson gold mine property.
Initial drilling on Opawica’s claims is scheduled to commence in the next 4 to 6 weeks. The current surface trenching will be primarily conducted in the immediate vicinity of the recently excavated 40 foot wide historic pit in which Opawica collected 32 samples which returned values ranging between 270 ppm Cu to 6.66% Cu and 100ppb Au to 3.39g/t Au. These results were disclosed in their entirety in the Company’s January 26, 2007 news release. It appears that little historic assaying has been conducted for gold, silver, lead, zinc or molybdenum (moly) in this area. In this regard, further assaying conducted by Opawica on its 32 grab samples from the 40 ft wide pit returned 32 silver values ranging between 100ppb Ag to 80.4 g/t Ag with an overall average of the 32 samples of 6.33 g/t Ag. The 80.4 g/t Ag value was from the same sample that provided 6.66% Cu and a 36 g/t Ag value received was associated with the 3.3% Cu value reported in the 40 ft wide pit by the Company on January 26, 2007.
In addition, approximately 650m northwest of the 40 ft wide pit, a grab sample from a small historic trench taken by the Company’s field manager returned 5.6% Zn, 6.8% Pb, 1.1 g/t Au, 26.8 g/t Ag and 260 ppm Cu. All samples taken to date by Opawica are within about a one square kilometer area which covers most of two large magnetic anomalies of about 700m by 700m and 600m by 400m. These anomalies are outlined in a 2004 airborne magnetic survey completed by the Ontario Geologic Survey(“OGS”). These two anomalies situated on Opawica’s Walker and Camking claims, are larger and yield a greater magnetic response compared with the two airborne anomalies that are coincident with the Young-Davidson gold deposits (3 million ounce Au) located approximately 250m south of Opawica’s Walker claims anomaly.
Further review of the OGS files and reports (W.D. Sinclair 1985 and Shlanka 1969) that cover this immediate area of the Opawica claims outlines that between the 1950’s and 1980’s past surface sampling has yielded copper mineralization grading between 0.05% to 0.1% copper over more than one square kilometer with a few zones (porphyry) that contain over .5% Cu, 0.22 g/t Au and 3 g/t Ag.
Alteration associated with the Matachewan porphyry copper mineralization includes potassic and propylitic types. On the Opawica claims potassic alteration consists of pervasive replacement of host rock by very fine-grained, pink K-feldspar associated with well-developed quartz veinlet stockworks. The potassic zones coincide closely with mineralized quartz veinlet stockworks. Although the Matachewan porphyry copper-gold-moly mineralized areas are small relative to large Mesozoic and Tertiary porphyry deposits, the copper and gold grade of the Matachewan porphyries are to date comparable to some gold bearing porphyry copper deposits such as the Fish lake deposit in British Columbia (45 MT of 0.304% Cu and 0.51 g/t Au with 100 MT of 0.227 % Cu and 0.41 g/t Au), the Poison Mountain deposit, B.C. (164 MT at 0.27% Cu, 0.007 % Moly and 0.21 g/t Au) and the higher grade and smaller Afton Mine, B.C.(30 MT of 1.0 % Cu, 0.55 g/t Au and 4.1 g/t Ag). (WD Sinclair, OGS).
Fire assays for Opawica sampling at Atikwa Lake and from the Matachewan claims was carried out by Swastika Laboratories of Kirkland Lake, Ontario.
The Qualified Person for the Atikwa Lake property and the Matachewan property is Mr. Todd Keast, P.Geo., of Timmins, Ontario.
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