Merc International Minerals Inc.
TSX VENTURE : MRK

Merc International Minerals Inc.

October 27, 2009 08:45 ET

Merc Intersects 12.97 Grams Gold Per Tonne Over 3.0 Metres-Significantly Expands New Gold Zone and Extends Mineralization North-East of the Horseshoe Zone

TORONTO, ONTARIO--(Marketwire - Oct. 27, 2009) - Merc International Minerals Inc. ("Merc") (TSX VENTURE:MRK) is pleased to report results on seven new drillholes from its ongoing gold resource expansion program at the Damoti Lake Gold Project, Northwest Territories. All holes have returned multiple gold intersections, significantly expanding the continuity of mineralization throughout the north-eastern portion of the Horseshoe Zone. In addition, a new intersection at depth in hole D09-387 (4.31 grams gold per tonne over 6.90 metres, including 30.01 grams gold per tonne over 0.80 metres) has opened up the western limb of the fold 100 meters to the north of the new discovery reported for hole D09-382 (see September 16, 2009 news release). Other drill highlights include: 12.97 grams gold per tonne over 3.0 metres, including 25.40 grams gold per tonne over 1.50 metres; 30.01 grams gold per tonne over 0.80 metres; 17.68 grams gold per tonne over 1.80 metres, including 23.70 grams gold per tonne over 1.10 metres.

President and CEO Dr. Michael Byron said, "The confirmation of mineralized iron formation within the keel of the syncline, and extending upward into the west limb of the fold, adds considerably to the potential for ongoing resource expansion, both latterly and vertically in this area. The fact that all seven holes returned multiple gold intersections is further evidence of the robust nature of the mineralization. We are very excited and look forward to continuing exploration work on this new zone," he added.

Drill HoleFrom (m)To (m)Core Length* (m)Au (gpt)
D09-386 187.00 193.95 6.95 3.39
including 187.00 190.50 3.50 4.15
including 188.00 189.00 1.00 5.38
including 192.85 193.95 1.10 7.54
D09-386B 48.00 63.00 15.00 2.01
including 57.00 61.50 4.50 4.85
including 60.00 61.50 1.50 10.55
 75.00 78.00 3.00 3.26
 85.50 94.50 9.00 3.07
including 90.00 94.50 4.50 4.44
including 92.50 93.50 1.00 9.08
 159.00 167.00 8.00 3.75
including 162.00 166.00 4.00 5.53
including 165.00 166.00 1.00 14.70
 186.50 187.50 1.00 12.00
 211.00 213.00 2.00 9.62
including 212.00 213.00 1.00 17.28
 238.50 241.50 3.00 12.97
including 238.50 240.00 1.50 25.40
D09-387 22.60 26.00 3.40 4.53
including 23.20 24.00 0.80 12.55
 199.50 206.40 6.90 4.31
including 205.00 205.80 0.80 30.10
D09-388 62.70 64.05 1.35 3.45
 100.50 106.55 6.05 2.78
including 103.20 104.55 1.35 6.22
 113.40 114.25 0.85 6.65
 127.50 130.50 3.00 6.80
including 129.00 130.50 1.50 9.65
 141.00 142.50 1.50 3.19
 172.00 174.00 2.00 5.80
 192.20 195.00 2.80 2.77
including 194.15 195.00 0.85 6.77
 263.00 264.00 1.00 5.08
D09-389 33.00 39.00 6.00 4.53
including 33.00 34.50 1.50 12.20
including 37.50 39.00 1.50 4.86
D09-389B 28.50 34.50 6.00 3.95
including 30.00 31.50 1.50 10.40
 35.75 40.00 4.25 7.81
including 38.20 40.00 1.80 17.68
including 38.20 39.30 1.10 23.70
 44.00 49.00 5.00 3.63
including 48.00 49.00 1.00 6.73
 68.60 70.80 2.20 5.74
including 68.60 69.20 0.60 9.45
including 70.00 70.80 0.80 8.66
 110.50 111.25 0.75 9.26
 203.20 204.80 1.60 4.85
 227.50 228.65 1.15 3.10
D09-389C 27.40 27.95 0.55 5.99
 35.00 37.25 2.25 6.02
including 35.85 36.40 0.55 11.55

*Lengths are reported as core lengths. True widths are not known at this time.

Drillholes D09-386B, 387, 388 and 389B successfully intersected mineralization within the fold nose, down plunge from previously reported intersections (September 16, 2009 press release), and traced mineralized zones vertically into the west limb gold zone, located at depth within the west limb of the Horseshoe syncline. This latest drilling has extended the potential strike length of the new gold zone north 100 metres, while remaining open down plunge to the north, and vertically within the west arm of the fold.

Holes D09-388, 389, 389B and 389C, the most northerly holes drilled in this campaign, have extended previously identified near-surface mineralized zones an additional 50 metres to the north. In this area, D09-389 returned 4.53grams gold per tonne over 6.0 metres (including 12.2 grams gold per tonne over 1.5 metres), while D09-389B returned 7.81 grams gold per tonne over 4.25 metres (including 17.68 grams gold over 1.8 metres and 23.70 grams gold per tonne over 1.10 metre). Further exploration is warranted as the shallow zone remains open to the north.

The remaining holes drilled in the 2009 summer program were directed towards expanding mineralization within the Red Mountain syncline located 150 metres west of the Horseshoe Zone, and to explore for new gold zones within the fold. Results for these holes will be reported once they have all been received by the Company.

Expansion and winterizing of the Damoti field camp is complete in preparation for a winter drill program. In late 2009, Merc will carry out detailed ground magnetic and electromagnetic surveys designed to identify new drill targets throughout the 14 kilometres of iron formation within the Damoti property. The winter drill program, planned for early 2010, will follow up on results from the summer program and be broadened to confirm and increase the high-grade gold BIF Island Zone located 4 kilometres northeast of the Horseshoe Zone, and to expand the overall resource. This area hosts mineralization similar to that of the Horseshoe Zone yet has not seen any exploration activity since 1996. Historical 1993 results include near surface intersections of 11.10 meters assaying 11.74 grams gold per tonne and 2.7 metres of 42.26 grams gold per tonne. 1994 drilling includes shallow intersections of 37.12 grams gold per tonne over 23.88 metres, including 81.21 grams gold per tonne over 8.82 metres; and 2.60 metres of 220 grams gold per tonne.

"Exploration opportunities within the BIF Island Zone are exceptional and we have already identified a number of high-priority targets in this 4 kilometre zone that have not been tested", states Dr. Byron. "In addition, our planned geophysical surveys will be instrumental in identifying additional primary targets that will be drilled in this winter's program".

In a recent news release (September 14, 2009) it was reported that Merc had retained SRK Consulting to initiate a mineral resource evaluation and preparation of a National Instrument (NI) 43-101 compliant technical report. SRK has recently completed their site visit of the project area and reviewed the Company's sampling procedures and protocols.

Quality Control

Merc International Minerals, Inc. has implemented a quality-control program to ensure best practice in the sampling and analysis of the drill core. NQ-size drill core is saw cut and half the drill core is sampled in standard intervals not exceeding 1.5 metres in length while core from the main mineralized horizons or core displaying visible gold or significant sulfides are sampled in greater detail generally not exceeding 1 metre in length. The remaining half core is stored in a secure location.

Core samples are transported in security-sealed bags for analyses at ALS Chemex Assay Laboratory in Vancouver, BC. ALS Chemex is an ISO 9001:2000 certified laboratory. Gold assaying is done by a fire assay - atomic absorption spectrometry method on a 30-gram charge of a 1000 gram pulp. Samples returning values exceeding 3 gpt Au are re-checked by fire assay with a gravimetric finish. Pulp and metallics assaying for gold is conducted on the entire pulverized sample for all samples within the main mineralized horizons and those samples with visible gold or significant sulfides.

As part of its QA/QC program, Merc International Minerals inserts external gold standards (low to high grade) and blanks every 20 samples. This is in addition to the standards, blanks and pulp duplicates inserted by ALS Chemex. In addition, samples of pulps have been collected from ten percent of all samples analyzed and will be submitted to a second independent laboratory for comparison purposes.

The Damoti Lake Gold Project is being supervised by William Waychison, M.Sc.A., P.Geo., the Qualified Person (QP) for this project.

This news release may contain forward-looking statements based on assumptions and judgments of management regarding future events or results. Such statements are subject to a variety of risks and uncertainties which could cause actual events or results to differ materially from those reflected in the forward-looking statements. The Company disclaims any intention or obligation to revise or update such statements.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

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