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September 30, 2010
Lake Shore Gold Extends Mineralized System at Bell Creek by Minimum 300 Metres, Presence of High-Grade Core Confirmed
TORONTO, ONTARIO--(Marketwire - Sept. 30, 2010) -
-- BC-10-94C intersects 7.26 gpt over 30.80m, within a broader envelope of
5.85 gpt over 42.20m, and 6.64 gpt over 9.80m, BC-10-94A intersects
22.06 gpt over 4.10m, including 52.80 gpt over 1.50m, 5.83 gpt over
2.20m and 5.59 gpt over 1.50m, S-10-11B intersects 5.06 gpt over 4.50m
and BC-10-92 intersects 22.60 gpt over 0.30m (with visible gold or
"VG").
-- Mineralized system extended by a minimum of 300 metres down plunge
from previous deepest holes to 1,400 metres below surface.
-- Presence of high-grade core confirmed below 850 metre level.
-- BC-09-24H intersects 9.54 gpt over 3.70m within envelope of 4.13 gpt
over 15.50m and 715.00 gpt over 0.30m (with VG) at the east limit of
previous drilling near the 800 metre level.
-- BC-09-53D intersects 7.24 gpt over 3.30m and 5.79 gpt over 4.70m, BC-10-
91 intersects 5.27 gpt over 6.80m, BC-09-64 intersects 6.53 gpt over
2.70m, BC-09-71B intersects 5.27 gpt over 3.40m and BC-09-73 intersects
5.19 gpt over 2.10m in new areas between 400 metres and 1,100 metres
below surface.
-- BC-10-95 intersects 11.80 gpt over 0.30m and 6.56 gpt over 0.60m 200
metres west of mine workings near the 500 metre level.
Lake Shore Gold Corp. (TSX:LSG) ("Lake Shore Gold" or the "Company") today announced results from an additional 15 new holes and 15 wedge holes (20,239 metres) from drilling at the Bell Creek Mine. The Bell Creek Mine is located approximately 20 kms east of Timmins and is the site of a significant advanced stage exploration and development program through which the Company is working towards putting a second mining complex into production in the Timmins Camp. The purpose of the new drilling was to confirm and expand the recently defined mineralization extending below the Bell Creek Mine as part of a work program to complete a first National Instrument ("NI") 43-101 resource estimate for the property.
Tony Makuch, President and CEO of Lake Shore Gold, commented: "We are extremely pleased with these new drill results from the Bell Creek Project. The deep intersections reported today extend the new gold system at Bell Creek to depth and confirm the potential for thick and continuous zones of mineralization which will have a very positive effect on the new NI 43-101 report we are working on for release during the fourth quarter of this year. The greater than normal thickness of these zones suggests the possibility to implement lower cost bulk mining methods for at least portions of the mine plan. These results add a new dimension to the Bell Creek Project and we are looking forward to completing additional holes to expand these zones further and eventually bring the Bell Creek Mine into production."
Significant results of the program include a minimum 300 metre extension of the mineralized system at Bell Creek to a vertical depth of 1,400 metres. The results also confirm the presence of a thick, higher-grade core to the mineralization below the 850 metre level as well as its extension by a minimum of 80 metres. Among holes released: BC-10-94C intersected 7.26 gpt over 30.80m, within a broader envelope of 5.85 gpt over 42.20m, and 6.64 gpt over 9.80m, and BC-10-94A, which intersected 22.06 gpt over 4.10m, including 52.80 gpt over 1.50m, 5.83 gpt over 2.20m and 5.59 gpt over 1.50m. BC-10-94A is located approximately 80 metres below previously released BC-09-53B, which intersected 8.99 gpt over 7.00m, 3.12 gpt over 24.30m, 14.63 gpt over 1.30m and 7.71 gpt over 1.00m, 180 metres below previously reported BC-09-53, which intersected 12.67 gpt over 14.40m and 200 meters southwest of previously reported BC-09-24B, which intersected 11.09 gpt over 13.75m (see previously issued press releases dated October 1, 2009 and July 21, 2009, respectively). Further review of assay data from the above two holes suggests BC-09-53 could have been reported as 6.65 gpt over 31.75 m, including 12.67 gpt over 14.40m, and that BC-09-24B could have been reported as 6.68 gpt over 24.70m, including 11.09 gpt over 13.75m, had a bulk mining concept been applied.
Mineralization observed in the new holes is closely associated with increased carbonate-sericite alteration, minor quartz veining and up to 15 % pyrite contained within a broad zone of hydrothermal alteration measuring up to 100 metres in width. The thick high-grade core zone has now been tested by a minimum of 6 holes covering a total strike length and vertical height of 200 metres by 150 metres, respectively. Intersections from holes within the core zone consist of multiple zones of mineralization which can vary in terms of number and thickness from hole to hole with most holes in this core containing a total thickness of mineralization exceeding 25 metres. The new intersection in BC-10-94C, which contains a total of 53 metres of significant mineralization in two zones, represents the thickest and deepest from the high-grade core zone to date. The overall plunge of the mineralized system appears to be moderately to the east and the plunge for the high-grade core either vertical or slightly west, where little to no past drilling has been done.
Hole S-10-11B intersected the mineralized system 120 metres deeper and southeast of BC-09-94C and contained 19 occurrences of fine VG within well bleached and altered volcanics. S-10-11B reported weaker and narrower values than BC-09-94C suggesting that S-10-11B may have been over the main plunge line for the thick, high-grade core zone.
Additional results from the program included encouraging results from BC-09-24H and BC-10-95. Hole BC-09-24H tested the mineralized system at the east limit of previous drilling near the 800 Level and intersected 9.54 gpt over 3.70m within an envelope of 4.13 gpt over 15.50m and 715.00 gpt over 0.30m (with VG). The area east of BC-09-24H is untested. BC-10-95 tested the area approximately 200 metres west of the mine workings which is also largely untested and intersected 11.80 gpt over 0.30m and 6.56 gpt over 0.60m.
Results were also received from several holes drilled between the 400 metre and the 1,000 metre levels to evaluate large gaps in previous drilling and help solidify the overall geological model for the new NI 43-101 resource report. Results of these holes are considered positive and confirm the overall width and continuity of mineralization between previous wider spaced holes. Significant intersections received were 7.24 gpt over 3.30m and 5.79 gpt over 4.70m from BC-09-53D, 5.27 gpt over 6.80m from BC-10-91, 6.53 gpt over 2.70m from BC-09-64, 5.27 gpt over 3.40m from BC-09-71B and 5.19 gpt over 2.10m from BC-09-73.
Drilling is continuing at Bell Creek with five surface drill rigs and two underground drill rigs with a focus on additional infill and expansion drilling. Work is also continuing on a new NI 43-101 report for the property, including a first NI 43-101 compliant resource estimate containing all recent drilling.
Quality Control
The Company's Qualified Persons ("QP") for Bell Creek surface exploration are Stephen Conquer, P.Geo. and Keith Green, P.Geo. As QP's, they have prepared or supervised the preparation of the scientific or technical information for this phase of the surface exploration and verified the data disclosed in this press release. Both Mr. Conquer and Mr. Green 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. Assays have been completed at ALS Chemex using a standard fire assay with a 30g aliquot and an AA finish. Samples with assay results above 3.0 gpt are re-analyzed using a gravimetric finish. Any intervals showing visible gold ("VG") as well as select intersections, based upon visual inspection of the core, are sometimes analyzed using the pulp metallic method. NQ 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 for preparation at ALS Chemex Prep Lab located in Timmins, Ontario, and the pulps shipped to ALS Chemex Assay Laboratory in Vancouver, B.C. ALS Chemex is an ISO 9001-2000 registered laboratory preparing for ISO 17025 certification.
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