Property Location & History
The Lamaque Property is located in the Val-d'Or gold camp in Northwestern Quebec, about 550 km. northwest of Montréal, Quebec. The property consists of 4 contiguous Mining Concessions and twenty (20) mining claims for a total of 1,459 hectares, owned 100% by Integra. None of the claims are within park, forest reserves or other areas that are restricted from exploration and mining.
The Property includes much of what constituted the mine property of Lamaque Gold Mines Limited that for parent company Teck Hughes Gold Mines Ltd., and later Teck Corporation, produced a total of 4,554,167 ounces of gold between 1935 and 1985 but the property does not include the four main mines that provided the majority of the ore for the former owners.
The property's north-eastern boundary lies next to the producing Sigma Mine and pit which has produced 4.7 million ounces of gold (published June 23, 2009) from 1935 to the present and has approximately 5,000,000 gold ounces in resources and reserves. To the southwest is the Goldex Mine owned by Agnico-Eagle reporting 3,500,000 gold ounces in resources and reserves and directly to the west the Osisko Canadian Malartic open pit gold mine reporting 10.71 million Proven and Probable gold ounces. The adjoining Cadillac, Malartic and Val d'Or camps have produced over 45 million ounces of gold since the 1930's and presently encompasses 7 producing gold mines (15 million ounces in reserves).
2011 Updated Resource Estimates for the Lamaque Property†:
* The tabulated results above show the newly calculated resource estimates and includes the 2004 Audit Report estimate for the #4 Plug prepared by Watts, Griffis and McOuat.
|Gold Deposit Name
||Grade (Grams per Ton-uncut)
|No. 4 Plug*
|Total Inferred Resources
||5.67 g/t (average)
|Total Indicated Resources
||4.80 g/t (average)
**For the Parallel Zone, an Ordinary Kriging (OK) estimator was utilized and the Forestel zone was interpolated utilizing an IPD2 estimator
† Technical Mineral Evaluation Report for Lamaque Property prepared by Geologica Groupe-Conseil Inc. -- June 23, 2011)
to download the full NI 43-101 Technical Report)
Click to enlarge
The property is underlain principally by steeply dipping east-west striking volcanic flows intruded by a variety of intermediate to mafic plugs, dykes and sills. The mineralized zones are 'Vein-Type' 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 geologically younger 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 nearby Lamaque Mine: subvertical and sub horizontal veins. The subvertical veins occur within steeply dipping east-west trending ductile shear zones along which reverse sub-vertical displacements have taken place. The veins occupy openings created by irregularities during progressive movement within the shears. Sub horizontal veins occupy extensional fractures, which formed between ductile shear zones, preferentially in the more competent host rocks. According to Neumayr et al. (2000) the mineralized zones and deposits at Lamaque are second and third-order structures related to deformation along the Larder Lake -- Cadillac Fault Zone which represents the first-order structure.
There are twelve significant zones of gold mineralization known on the Lamaque Property comprising various simple vein structures, vein complexes and stockwork zones.(click here to see the different geological zones
) They are comprised of:
- No. 4 Plug
- Parallel Vein Zone (includes Vein No. 10)
- Forestel Zone
- Sixteen Zone
- Triangle Zone
- Mylamaque Zone
- No. 5 Plug
- No. 35 Shear
- North Shear systems
- No. 1 vein
- No. 6 vein
- Sigma Vein
Alain-Jean Beauregard, P. Geo. of Val-d' Or has worked as the Qualified Person responsible for exploration, data compilation and management on the Lamaque Property for the past several years.
2010 Exploration Program
In 2010 the Company drilled 17,479 meters in 66 drill holes. Drilling consisted of 4356 meters drilled on the Forestel Zone, 7148 meters on the Parallel zone (No.10 Vein), 2810 meters on the Sixteen Zone, 2860 meters on the Sigma Zone 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 which is ongoing at the present time.
The 2810 meters the Company drilled on the Sixteen Zone was to confirm historical mineralization and test for possible extensions to the zone.
Inferred Mineral Resources for Integra's Lamaque Property Using a 0.1 oz/au ton Cutoff (Audited and Reclassified by WGM Sept. 2004)
|Gold Deposit Name
|No. 4 Plug
700 -- 3,000 foot level
|No. 10 Vein
Mineral Resources that are not Mineral Reserves and have not demonstrated economic viability.
"click here for the full technical report"
2011 Exploration Program
The 2011 drill program has a planned target of 28,500 meters. Based on the encouraging progress, a multi-phase budget to advance the Lamaque property has been recommended by Geologica Groupe-Conseil Inc. ("Geologica") estimated at CDN $5.7 million. The program plan consists of 95 holes aggregating approximately 28,500 meters and is designed to add additional resources to the resource inventory quickly, allow for additional compilation of data, drilling designed to better define and test for lateral and at depth extensions of mineralized veins, and to explore for other veins in the hosting structures.
The goal for definition drilling on the Parallel Vein (including No. 10 Vein) structure is to bring resources from inferred and add to the indicated category, and to increase the overall mineral resource inventory. Effective exploration to advance the No. 4 Plug hosting the largest inferred resource will require deep validation and definition drill holes.
There is opportunity to add three additional mineralized zones to the resource estimate in the very near future.
Phase One Timeline: July - October, 2011
||To investigate the lateral and depth extensions of the zone with the aim of adding to the resource calculation and enhancing the classification of resources
||To investigate the lateral and depth extensions of the zone with the aim of preparing a resource calculation and enhancing the classification of resources
||To confirm the vertical model, increase resources and enhance the classification of resources
||To compile drill and assay results for a resource calculation and enhance the classification of resources
||To investigate the Mylamaque mine and tonalite intrusion
The budget for phase one is estimated at CND $2.4 million.
Phase Two Timeline: October - December, 2011
||To validate previous drilling and infill drilling with the objective of being able to compile results for the purpose of preparing a resource calculation
||To investigate the lateral and depth extensions of the zone
|Plug # 5
||To determine the eastern limit
The budget for phase two is estimated at CND $1.4 million.
Phase Three Timeline: January - May, 2012
||To test #4 Plug's tension vein networks and test the quartz diorite intrusion at depth.
|No. #3 Shaft
||To investigate quartz diorite intrusion
||To investigate No. 4 vein
||To test between the Triangle and #4 Plug zones to confirm mineralized zone intersects in RL-4 and RL-6 and further test the Triangle Extension zones
The budget for phase three is estimated to be CDN $1.9 Million
Mineralized Gold ZonesNo. 4 Plug
The No. 4 Plug is located on the south parcel of the Teck-Tundra JV property. It is located approximately 3,500 feet (1,066.8 meters) southwest of No. 3 Mine Shaft to which it is connected by drifts on the 450 and 700-foot levels. The No. 4 Plug was mined and yielded 160,000 tons grading 0.152 oz Au/ton (145,136 s T grading 5.21 g Au/t) from working above 700-foot level. Production for the No 3 Mine and No. 4 Plug areas extended from July 1961 to 1967.
The No 4 Plug is a "pipe-like" intrusion and measures 350 to 400 feet (106.68 to 121.92 meters) in diameter and extends to a depth in excess of 3,000 feet (914.4 meters). The No. 4 Plug was mined from July 1961 to 1967and yielded 160,000 tons grading 0.152 oz Au/ton (145,136 s T grading 5.21 G Au/t) from working above 700-foot level.
The last Mineral Resource estimate completed for the No. 4 Plug was done by Teck in 1989 (Scammell, May 1989). Teck estimated 1,149,000 tons grading 0.179 oz Au/ton (cut) and 0.275 oz Au/ton (uncut) for a series of zones between the 700-3,000-foot levels. It incorporated all drilling. The only drilling since 1989 (73 DDH totalling 82,462 feet (25,134.42 m) during 1932 to 1989) has been done on the plug was by Kalahari in 2003.
Parallel Vein (including Vein No. 10)
Recent (2010) drilling (7,148.25 metres distributed over 26 DDHS) has validated previous results and extended the mineralized vein clusters. Thirty one (31) holes of definition drilling (2011) are planned in order to upgrade more of the inferred ounces to the indicated category and with an attempt to add additional ounces of gold to the Lamaque Project.
Parallel Vein and the No. 10 Vein complex are both located northwest of the No. 3 Mine. They consist of several sub-parallel en echelon pinch and swell veins, which are hosted within a narrow tabular shear zone or corridor that cross-cuts all the lithological units. The vein itself generally ranges in width between 6 and 60 inches (1/2 foot to 5 feet) and it attains a maximum thickness of 103 inches (approximately 8.5 feet) in drill hole G-88-8. The higher-grade portion of this vein extends from section 111E to section 156E, a strike length of 1,150 feet. It dips between 50° and 60° towards the south and has a known vertical extent of 400 feet between 300 and 700 feet below the surface.
Recent (Autumn 2010) drilling (4,356 metres distributed over 14 DDHS) has validated previous results and extended the mineralized vein clusters. Some 2011 assays definition drilling (1,234.99 metres distributed over 6 DDHS) will provide enough information for a resource calculation and add additional ounces of gold to the Lamaque Project.
The recent validation and verification drilling conducted in 2006-2011 (10,142.72 meters for 34 DDHs) permitted to re-evaluate the resource using adequate data corroboration with Quality Assurance, Quality Control (QAQC protocol) and compliant NI 43-101 Inferred Resources of 861,000 Tonnes at 2.10 g/t Au (≈58,000 Ounces Troy) was calculated (see appendix IX) for reference report prepared by Mr. Christian D'Amours of Geopointcom Consulting of Val-d'Or, dated December 2010. Additional drilling is necessary to certify the model and categorize the resources.
Recent (2010) drilling (2,816.36 metres distributed over 14 DDHS) was conducted in order to validate previous results and extend the mineralized vein clusters. Some definition drilling (2011) is planned with the intention to add ounces to the resource calculation.
The Sixteen Zone was named for the T-16 magnetic anomaly defined in a geophysical compilation from 1986. It is located in the western part of the Property, just north of the southern By-Pass road between lines 212 W and 180 W.
Within the property the mineralized zones are defined as 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 young in geologic age and cut all rock-types including irregular intrusive (diorite) bodies, which are affected by regional deformation and greenschist grade metamorphism. In the Sixteen zone, most of the gold intersection was in a porphyritic Diorite and porphyritic granodiorite with 1 to 5% of pyrite in quartz tourmaline sericite carbonate veins.
The Triangle Zone was discovered by drill testing an ovoid shaped magnetic anomalous zone which corresponded to a younger tonalite intrusion. The anomalous zone extends both east and west over a strike length of 393 metres and is 785 metres wide. In drill core the mineralized veins occur as part of a related vein clusters within the fractured and altered zones of the tonalite which intrudes the surrounding intermediate to mafic volcanics (mostly lapilli and blocky tuffs, undifferentiated pyroclastics and basalt). North of the Triangle Zone, two other similar ovoid shaped anomalous magnetic zones are believed to correspond to mineralized intrusions.
Recent 2006-2011 validation and verification drilling (8,208.68 meters 23 for DDHs) has aided in understanding the geological model. A resource calculation for this zone is planned to be completed in 2011 and should add additional ounces the to the Lamaque Property resource.
The Villemaque or Mylamaque property block, equivalent to CM 375, which comprises a large part of the Teck-Golden Pond JV property was purchased by Teck and Mymar Mining and Reduction Limited (later changed to Dynamar Energy Limited) from Villemaque Gold Mines in 1977 for indebtedness. In July 1991 Dynamar forfeited all rights to the property to Teck as a result of non-payment of its share costs.
In 2003 Kalahari (now Integra)aquired the Lamaque Property from Teck Corporation. There are three known mine shafts on the Property, the No 2 shaft, the No 3 shaft and the Villemaque (Mylamaque) shaft.
The Villemaque property situated in the southern part of the property. Blecha (july 1985 and Scammell ans Frostad (november 1988) report that 45,000 feet (13,716 neters) of drilling in 75 surface drillholes were completed in the property between 1937 and 1948. These holes (P, Q, R series) are shown on Teck's geological compilation maps but not appear to be in the property database provide by Teck Cominco. In 1948, a vertical 3-compartment shaft (the Mylamaque Shaft) was sunk to a depth of 243 feet (74.06 meters) and 757 feet (230.73 meters) of lateral development were undertaken on two levels. A bulk sample consisting of 702 tons was extracted in 1950.
In 1962 magnetometer survey was conducted by Geophysical Engineering and Surveys Limited, in 1983 and 1984 a vertical gradiometer survey and seven drillholes totalling 4,073 feet (1,421.45 meters) testing magnetic anomalies was done. Blecha notes that the only occurence of gold mineralization indicated on the Villemaque property block other than that developed in Mylamaque shaft was indicated in hole R-12, wich encountered 0.044 oz Au/t over 2.5 feet (0.76 meters). This intersection was located close to a contact with a porphyritic intrusion.
No. 5 Plug
The No. 5 Plug is located approximately 250 metres northeast of the Parallel Vein System and consists of a diorite intrusion bordered to the south by an E-W Shear zone. The surrounding geological units consist of intermediate to mafic volcanics. A drill program (prior to 1987) was conducted for a total of 9,262 metres and consisted of 34 historical diamond drill holes.
No. 6 Vein
The Vein No. 6 is located approximately 2,000 feet west of the No. 1 Main shaft (Figure 8). The vein has an E-W strike length of about 800 feet. Veins interpreted to be tension veins dip at about 50°. Steeper dipping veins (75°) are interpreted to be hosted in Reidel shears.
The vein is hosted by a series of massive andesite or dacite and crystal tuffs and lapilli tuffs with several feldspar porphyry dykes. Generally a series of shear zones with vein injections cross-cut the dykes and tuffs. The vein itself generally ranges in width between 1 and 30 inches.
In 2006-2007, drilling (1,005.66 metres distributed over 4 DDHS) was completed in order to validate previous results and extend the mineralized vein clusters. Some additional definition drilling (2011) will be conducted with a goal of improving the understanding of the geologic model. A Re-sampling program was started by GEOLOGICA to add QA/QC for the 2004 to 2007 drilling with a total until now of 5 drill holes having been re-sampled.
Other Mineralized Zones
Several zones of mineralization (No. 35 Vein, North and South Shears) located north of, and/or within the No. 5 Plug were drilled by the Teck-Tundra JV from 1986 to 1988 (see Figure 6). Numerous other zones of mineralization have been intersected on the Property. Many of these latter zones were defined by intersections described in pre-1988 drill holes. In order to use this older data a review of the older drill hole logs and a creation of a digital database is required so that the intersections can be plotted on plan and section. These zones, and recently discovered new zones such as the Sigma Zone will also be validated and verified with additional drilling and eventually evaluated with definition drilling permitting resource calculations to be calculated.
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