Lake Shore Gold Corp. (TSX:LSG) ("Lake Shore Gold" or the "Company") today announced results from an additional 38 holes (3,463.1 m) of its ongoing underground drilling program at the Company's 100%-owned Thunder Creek Project (the "Project"). The Project is located approximately one kilometre southwest of the Company's Timmins Mine and is currently being explored underground from access drifts driven from the 200 and 650 levels in the Timmins Mine. The new holes being reported (see attached figures) are from an ongoing program on the new access crosscut on the 300 Level drift at Thunder Creek that intersected the mineralized Rusk Zone (the "Zone") in June. This program is designed to confirm and expand previously defined high-grade mineralization identified from wide spaced surface holes to support development along the Zone for bulk sampling. The majority of the reported holes targeted a 120 meter long by 40 meter high block surrounding the new access crosscut and contained positive results in all directions.
Tony Makuch, President and CEO of Lake Shore Gold, commented: "Today's results continue to confirm and expand the potential of the Thunder Creek Deposit. The underground drilling to date has confirmed the results of earlier surface drilling, and highlights the likely extension of the mineralization at Thunder Creek both along strike and at depth. Based on the excellent grades and widths intersected development has commenced to follow the Zone along strike at the 300 Level elevation, as well as to ramp up and down to elevations where sub-level development and additional drilling can be carried out. This work is being done in order to further delineate the Zone as part of a larger program designed to determine an initial National Instrument 43-101 resource for Thunder Creek in 2011. At this point, the development on the 300 Level has been advanced along the mineralization to points approximately 30 meters east and 15 meters west of the crosscut, and all material extracted will be processed at the Bell Creek Mill."
Drilling below the level was focused on a 30 meter high block east of the new access crosscut and returned excellent grades and continuity of gold mineralization. Significant results include: 16.02gpt over 7.10m in TC300-021, 12.30gpt over 8.10m in TC300-019, 12.15gpt over 7.40m in TC200-008 (including 22.61gpt over 3.40m), 12.46gpt over 5.60m in TC300-015 and 13.25gpt over 5.70m in TC300-010 from an area covering up to 40 meters below the 300 Level on the east side of the new access crosscut, in an area that had never been tested. Mineralization intersected in the new holes occurs along a contact zone between pyroxenitic intrusive rocks and sedimentary rocks. The Zone, which trends northeast and dips 65 degrees to the northwest, is hydrothermally altered, carries increased sulphide mineralization, and is locally intruded by syenite porphyry dikes.
Drilling at the level elevation tested up to 70 meters east and 50 meters west of the 300 Level access crosscut and also contained excellent results. Drilling east of the access crosscut includes intercepts of 10.34gpt over 7.90m in TC300-013 and 14.09gpt over 3.00m in TC200-014. Significant values west of the new access crosscut include intercepts of 7.00gpt over 12.10m in TC300-012, 9.14gpt over 4.50m in TC300-003 and 9.67gpt over 4.10m in TC300-004. Based on the strength of alteration in holes near the limits of testing, the Zone is still considered open for further expansion in both directions.
In addition, 11 holes were drilled in the area above the 300 Level, which was previously considered as the top limit of mineralization. Significant results over the area east of the new access crosscut included values of 17.64gpt over 3.10m in TC 200-006, and 14.28gpt over 5.00m in TC300-018 and 3.30gpt over 6.25m, including 17.83gpt over 0.95m (with visible gold), in TC300-007. Significant results to the west included 9.04gpt over 2.20m in TC200-019A and 9.14gpt over 4.50m in TC300-003. The new intersection in TC200-006 is located in a gap approximately 60 meters above the 300 Level and west of a previously released intersection of 15.07gpt over 10.40m in TC200-004 (see press release dated June 29, 2010). A further gap of at least 50 meters in strike length remains open both to the west and upwards along the northeasterly trending plunge line.
Drilling at the present is continuing on the 300 Level with two drills that are focused on defining and expanding mineralization from the 300 Level access crosscut.
Quality Control
The Company's Qualified Person ("QP") for the underground drilling being completed on the Thunder Creek property is Stephen Conquer, P. Geo. As QP, he has prepared or supervised the preparation of the scientific or technical information and has verified the data disclosed in this press release.
Lake Shore Gold has a quality control program to ensure best practices in the sampling and analysis of all drill core. Assays have been completed at both ALS Chemex (TC200 series holes) and LSG - Bell Creek lab (TC300 series holes); both labs use a standard fire assay with a 30-gram aliquot. For samples that return a value greater than 10 grams (ALS Chemex) and 20 grams (Bell Creek) per tonne gold, another pulp is taken and fire assayed with a gravimetric finish. BQTK size drill core is saw cut and half the drill core is sampled in standard intervals. The remaining half of the core is stored in a secure location. The drill core is transported in security-sealed bags to either the Bell Creek lab for preparation and analysis or to the ALS Chemex Prep Lab located in Timmins, Ontario. The pulps from core that is sent to the ALS Chemex Prep Lab are then shipped to ALS Chemex Assay Laboratory in Vancouver, BC. ALS Chemex is an ISO 9001-2000 registered laboratory preparing for ISO 17025 certification. The LSG - Bell Creek lab conducts in-house analysis of mill, underground and drill core samples and is not an ISO 9001-2000 registered laboratory.
Source: Market Wire