Nov 12 2010
Lake Shore Gold Corp. (TSX:LSG) today announced results from an additional 52 holes (6,663 metres) of drilling from the 260, 610 and 650 levels of the Timmins Mine.
- New drilling confirms 400 metre extension to Main Zone down plunge from current bottom of resource modeling at 260 Level, Zone remains open to depth
- Intercepts include 6.74 gpt over 17.90m, 5.09 gpt over 13.84m, 3.43 gpt over 21.60m from holes collared on 260 level, 9.84 gpt over 5.00m, 5.25 gpt over 4.50m and 5.45 gpt over 4.10m in drilling from 610 Level.
- Drilling above and near west edge of current mining block near 610 Level suggests continuation of high grades towards 525 Level
- Intercepts include 15.84 gpt over 6.00m, 11.74 gpt over 15.0m, 10.06 gpt over 9.20m
- Drilling below 650 Level continues to confirm additional potential for Ultramafic and Footwall zones near the lower limit for the current mine resource model
- 650-129 intersected 6.40 gpt over 14.40m and 650-140 intersected 7.15 gpt over 16.0m between 20 and 40 metres below the 650 Level, confirm results from previous Hole 650-079, which intersected 7.52 gpt over 20.30m
- High-grade intercepts from final phase of infill drilling between 650 Level and 610 Level in advance of mining include 11.84 gpt over 11.70m, 29.13 gpt over 7.50m, 17.50 gpt over 19.70m, 11.33 gpt over 15.80m.
Of the drilling, 29 holes (4,263 metres) were from the 260 and 610 levels. Intersections near the 260 Level, which is near the lower limit for active mining on the Main Zone and is below the current lower limit for past resource modeling, covered a 100 metre strike length, while drilling on 610 Level confirmed a potential 400 metre down plunge extension of the Main Zone below the 260 Level with the zone remaining open at depth. The results also include the final 23 holes (2,427 metres) of definition drilling for the Ultramafic Zone between the 610 and 650 levels and returned high-grade intercepts in a number of areas, including above and near the west edge of the current mining blocks near the 610 Level.
Tony Makuch, President and CEO of Lake Shore Gold, commented: "Today's results are very exciting as they provide a very positive indication that the high grades within the first mining blocks are continuing upwards to the 525 Level and downwards from the 650 Level. They also confirm our belief in the potential to add new resources with extensions of known mineralization and new discoveries on the Timmins Mine Property."
Significant results from the current drilling include intersections in the down plunge projection of the Main Zone between the 260 Level and the 610 Level. Significant intersections include 6.74 gpt over 17.90m in 260-001, 5.09 gpt over 13.84m in 260-013, 3.43 gpt over 21.60m in 260-008, which were collared on the 260 Level of the surface ramp, as well as 9.84 gpt over 5.00m in 610-001, 5.25 gpt over 4.50m in 610-004 and 5.45 gpt over 4.10m in 610-008, which were collared on the 610 Level.
The new results from the Main zone are significant as they are below the current limit for resource modeling and in the down plunge extension of active mining to the 240 Level where the grade and width of the Main Zone has been steadily increasing with depth. The new intersections near the 260 Level cover a strike length of approximately 100 metres long and up to 60 metres below the 260 Level and contain grades and widths of similar tenor to holes drilled through mining blocks between the 210 and 240 levels. The new intersections from the 610 Level are located approximately 400 metres down plunge of the 260 Level and 90 metres down plunge of past surface holes TG06-58b, which intersected 4.89 gpt over 15.90m, including 26.56 gpt over 1.40m, and TG06-112, which intersected 3.08 gpt over 19.35m, including 42.35 gpt over 1.0m. As with holes intersecting the zone near the 260 Level, the mineralization in holes near the 610 Level appears to be closely associated with a series of quartz veins containing local tourmaline and increased pyrite.
Additional significant intersections from the drilling towards the Ultramafic Zone include 11.84 gpt over 11.70m in 650-132, 29.13 gpt over 7.50m in 650-133, 17.50 gpt over 19.70m in 650-146 and 11.33 gpt over 15.80m in 650-149, which represent the final phase of definition drilling for the Ultramafic Zone between 650 and 610 levels in advance of mining. 650-147 intersected 15.84 gpt over 6.00m, 650-148 intersected 11.74 gpt over 15.0m and 650-150 intersected 10.06 gpt over 9.20m in an area of limited testing located above and near the west edge of the current mining blocks near the 610 Level. In addition, 650-129 intersected 6.40 gpt over 14.40m and 650-140 intersected 7.15 gpt over 16.10m between 20 and 40 metres below the 650 Level near the lower limit for the current mine resource model.
Drilling is continuing at the Timmins Mine with three drills including one drill on the 610 Level, one drill on the 525 Level and one drill on the 260 Level. Three underground drills are also operational at Thunder Creek with one on the 650 Level and two near the 300 Level.
Quality Control
The Company's Qualified Person ("QP") for the underground drill program at the Timmins Mine property is Dean Crick, P.Geo. and the QP for resource estimation at Timmins Mine is Bob Kusins, P.Geo. As QPs, they have prepared or supervised the preparation of the scientific or technical information for the property and have verified the data disclosed in this press release. Both QPs are employees of Lake Shore Gold.
Lake Shore Gold has implemented a quality-control program to ensure best practice in the sampling and analysis of the drill core. Samples are obtained from BQTK-sized diamond drill core, with roughly 25% of sampled core being sawn in half and the remaining 75% being whole core sampled. All remaining core materials, including the remaining half of sawn core is retained on site in a secure location. Drill core samples are stored for sample preparation and gold analysis performed by ALS Chemex. ALS Chemex is an ISO 9001-200 registered laboratory, preparing for ISO 17025 certification. Drill core samples are transported in security-sealed bags to ALS Chemex's Timmins Sample Preparation Facility. Sample preparation is completed in Timmins, and the prepared sample pulps are then transported to ALS Chemex's analytical laboratory in Vancouver, BC. Gold grades are obtained on all samples via Fire Assay with Atomic Absorption finish, using 50g aliquots. For samples that return a gold content greater than 10 gpt, the sample is re-analyzed via Fire Assay with Gravimetric finish, again using a 50g aliquot.
Source: Lake Shore Gold Corp.