Jan 14 2011
INTEGRA GOLD CORP. (TSX VENTURE:ICG) has announced preliminary results from a drill program recently completed on the Parallel Vein on its Lamaque Property, located in the prolific Val-d'Or gold camp of Quebec.
"Recent and ongoing exploration on the Lamaque property continues to produce results beyond our expectations. The six meters of 54.31 grams per tonne represents the highest value ever intersected by the Company," comments Company President, John de Jong. "We have also extended the 2010 drill program on the Forestel Zone into January of this year to help with the resource calculation expected to be completed by early March. We look forward to results of the compilation of assays from this zone as well as the other zones we have been drilled. We will continue to move ahead, excited by the many opportunities that lie before us and the renewed interest shown in the Company."
Twenty six diamond drill holes were drilled at the Parallel Vein. Drilling was done to confirm mineralization, geology and structures for an historic non-43-101 compliant drilling campaign (QAQC sampling protocols), due to a lack of geological information in historical diamond drilling. A number of holes were done to verify the extension of mineralized zones between historical holes as well was as a number of exploration holes to investigate between the Parallel and Forestel zones.
Significant intersections from the Parallel Zone include:
- PV-10-02 : 8.78g/T Gold over 2.60m
- PV-10-04: 21.48g/T Gold over 2.77m
- PV-10-07: 30.08g/T Gold over 1.72m
- PV-10-08: 8.94g/T Gold over 5.00m
- PV-10-09: 54.31g/T Gold over 6.00m
- PV-10-10: 16.63g/T Gold over 5.00m
- PV-10-10: 14.99g/T Gold over 8.50m
- PV-10-13: 5.32g/T Gold over 4.50m
The significant zones of gold mineralization known on the Property comprise various simple vein structures, vein complexes and stockwork zones within E-W and subvertical shearing zones and fractures.
The majority of mineralization is hosted within fine to medium grained diorite with generally 1 to 3% of disseminated pyrite, locally up to 5% and some zones are within intermediate to mafic volcanics with 1 to 3 % of disseminated pyrite.
Best mineralized zones show free visible gold (PV-10-08, PV-10-09) with a good percentage of sulphide (5 to 10% disseminated pyrite and 2 to 5% chalcopyrite) that are associated to quartz-carbonate-tourmaline-chlorite veins and veinlets with 5 to 10% of pyrite and 2 to 5% of chalcopyrite. All mineralized zones intercept several quartz-carbonate-chlorite veins and veinlets of centimetric to metric widths (2, 20, 70 to 190cm).
2010 EXPLORATION
In 2010 the Company drilled 17479 meters in total in 66 drill holes. 4356 meters were drilled on the Forestel Zone, 7148 meters were drilled on the Parallel zone (No.10 Vein), 2810 meters were drilled on the Sixteen Zone, 2860 meters on the Sigma Vein extension and 304 meters on the Plug 5 Zone.
Both exploration and definition drilling was completed on the Forestel Zone, an area of mineralization which has never had a resource estimate calculated. The Forestel, as well as a number of other new zones, will be included in the upcoming 43-10 resource calculation report, expected to be completed by March 2011.
The 2810 meters the Company drilled at the Sixteen Zone was to confirm historical mineralization and test for possible extensions to the zone.
GEOLOGICAL SETTING
The property is underlain principally by steeply dipping east-west striking volcanic flows intruded by a variety of felsic to mafic plugs, dykes and sills. Because of their intimate spatial association with most of the known gold mineralization, the felsic to mafic intrusions, locally mostly granodiorite and sills that intrude the Val-d'Or Formation are of particular importance. The mineralized zones are mesothermal structurally controlled deposits, which are typical of the Abitibi Greenstone Belt and abundant in other Archean greenstone belts around the world.
The gold bearing quartz-tourmaline veins are late and cut all rock-types including irregular intrusive (diorite) bodies, which are affected by regional deformation and greenschist grade metamorphism. Two principal types of veins occur at the Lamaque Mine and on the property: subvertical and subhorizontal veins. The subvertical veins are occurring within steeply dipping east-west trending ductile shear zones where reverse subvertical displacements have taken place. The veins occupy openings created by irregularities during progressive moment within the shears. Subhorizontal veins occupy extensional fractures, which formed between ductile shear zones, preferentially in the more competent host rocks.
The significant zones of gold mineralization known on the Lamaque Property comprise various simple vein structures, vein complexes and stockwork zones. These include: No. 4 Plug; No. 5 Plug; No. 35 Shear; North Shear systems located north of the No. 5 Plug; Parallel Veins Zone (includes Vein No. 10); No. 1 vein in the No. 3 Mine area; No. 6 vein; Sixteen Zone; Forestel Zone and Triangle Zone. The NI-43-101 report by Watts, Griffis & McOuat completed in October, 2004 included the No. 4 Plug; and the No. 10 vein in the resource calculations. The company will include the Forestel zone, Parallel Veins and the N0.10 zones in the upcoming 43-101 compliant resource calculation, to be completed by early March 2011.
QUALITY ASSURANCE - QUALITY CONTROL
The Lamaque project exploration is under the direct supervision of Alain Beauregard, P.Geol. and Daniel Gaudreault, P. Eng qualified persons as designated by National Instrument 43-101 who has reviewed the technical content of this release. Thorough quality assurance and quality control program (QA/QC) protocol was utilized on the project including duplicate, blank and standard samples for all the holes. The core samples were submitted directly to Bourlamaque Labs in Val-d'Or for preparation and analysis. Analysis was conducted on 1 assay ton samples. Analysis of gold was by fire assay, with a gravimetric finish on samples exceeding 5 g/t gold. The gravimetric assay results were used for the reported composite intervals.
LAMAQUE GOLD PROJECT
The Lamaque property is in the Val d'Or Gold Camp immediately adjacent to both the Sigma and Lamaque mines, which together have produced approximately 9 million ounces of gold. The current inferred gold resource at Lamaque property is 375,375 gold ounces (1,238,308 tonne at 9.43 g/t gold) according to Watts, Griffis and McOuat 43-101 report. (Sedar October 20, 2004). The current gold mineralized vein-system, indicated through drilling, is speared over an area that is 4,000m in strike length, 2900m wide and open at depth.