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Breaking News
MacDonald Mines Releases Final Assays From James Bay; Identifies Fourth Limb on Potential Matagami-Type VMS Camp
12:35 EDT Tuesday, June 22, 2010
TORONTO, ONTARIO--(Marketwire - June 22, 2010) - MacDonald Mines Exploration (TSX VENTURE:BMK) ("MacDonald" or "the Company") announces the results from the spring 2010 drill program on its McNugget Property located in the Ring of Fire, James Bay Lowlands.
The 26 hole, 4,471 meter drill program consisted of a series of holes designed to test electromagnetic ("EM") anomalies on three fold limbs associated with sequences containing volcanogenic massive sulphide (VMS) mineralization of substance (as described by Hadyn R. Butler, P.Geo) and having characteristics similar to the Matagami or Noranda VMS camps in Quebec, where larger VMS deposits with satellite deposits along strike were found. This conclusion is also supported by C. Tucker Barrie PhD, P.Geo who, accompanied by the Company's Vice President of Exploration Quentin Yarie, P.Geo, has just completed a comprehensive on-site review of previous nickel and VMS drill core and exploration data. The historical production and resource from the Matagami Camp was 25 million tonnes grading 0.56% copper, 8.2% zinc and 20.91 g/t silver.
The Company is very encouraged by this large VMS system which is open in all directions and yields VMS mineralization over a potential cumulative strike length of approximately 20 kilometres. Upcoming drilling will focus on finding the best economic intersections along the VMS horizons. As noted in the Company's recent news releases, many other EM targets found during this winter/spring's revised data compilation will also be subject to follow-up prior to drill target selection.
Assay Highlights
Highlighted base metal results from this completed phase of drilling are summarized in tables at the end of this release with full assay results available at www.macdonaldmines.com. A summary of these highlighted drill holes are as follows and note that holes MN10-102 and MN10-104 contain copper, zinc and silver values within the same intersection.
Copper (Cu) -- Hole MN10-102 intersected 1.03% over 15 metres -- Hole MN10-111 intersected 1.04% over 5 metres -- Hole MN10-90 intersected 1.11% over 5 metres Zinc (Zn) -- Hole MN10-104 intersected 3.3% over 9 metres -- Hole MN10-106 intersected 2.55% over 4 metres -- Hole MN10-110 intersected 2.82% over 5 metres -- Hole MN10-102 intersected 2.5% over 3 metres -- Hole MN10-104 intersected 2.00% Zn and 0.88% Cu over 6 metres Silver (Ag) -- Hole MN10-87 intersected 13.32 g/t over 5.3 metres -- Hole MN10-94 intersected 16.57 g/t over 4 metres -- Hole MN10-102 intersected 11.67 g/t over 3 metres -- Hole MN10-104 intersected 11.97 g/t over 3 metres
Crone Geophysics Interprets Fourth VMS-Mineralized Limb
On-going data compilation has established that a fourth mineralized fold limb occurs on the McNugget Property striking southeast. During the spring work program, MacDonald surveyed previous drill holes on the fourth limb with the Crone Geophysics down hole pulse EM system. This technique proved invaluable at locating targets that were unexplained in previous exploration programs. This approach was used to locate borehole MN10-104.
MN06-18 and MN06-17 (drilled in 2006) were also geophysically probed. The interpretation of these data suggests a target with similar characteristics as those of MN10-104 - a conductive, steeply dipping sheet. Based on the borehole geophysics, a surface EM survey is being completed over the target (to be drilled during the next phase of exploration).
Quentin Yarie, P. Geo, Vice President of Exploration comments, "This target on the newly identified fourth mineralized fold limb was not previously seen by the earlier VTEM survey. The conductance is quite high and it appears to have some strike length with the top of it being rich in Zn, followed by Cu. We are in the process of mapping it, as we know the results from MN06-17 had significant Zn and silver (Ag) numbers".
MN06-18 intersected 6.99m of 0.59% Cu, 2.70% Zn, 17.59 g/t Ag including a 2.79m intersection of 5.21% Zn. Of particular interest in this hole is the build up to a late time, long wavelength off-hole anomaly representing a deeper conductor which has never been tested. This represents an exciting new target and preliminary modeling results indicate the potential here for a large, high conductance source. MN06-18 is located approximately 700m east of the "North Fold limb" noted in Macdonald's press release dated 5/31/2010.
Nickel Target Identified on MacDonald and Hawk Uranium Joint Venture Ground
MacDonald Mines has completed a surface Crone Geophysics Pulse EM survey over a highly prospective nickel (Ni) target in the vicinity of borehole MN06-39 (27m averaging 0.17% Ni including 1m intersections of greater than 0.5% Ni). Preliminary interpretation indicates a step response of a conductive body trending approximately East-West with a strike length of over 300m which is currently being modeled. A second conductor may exist under one of the loop edges. The surface program is being widened with a different transmitter loop location to assist in the resolution of both conductors prior to drilling of this target in the summer of 2010.
Further assay results
Fire assays for gold (Au) content are pending on all holes drilled during the spring program.
On-site Quality Assurance/Quality Control Measures
All diamond drill (half core) samples were collected and sealed on site and shipped under chain of custody supervision to the ACTLABS sample preparation laboratory in Thunder Bay, Ontario. Analyses are performed by ACTLABS laboratories (ISO/IEC 17025 certified) either in Ancaster or Thunder Bay, Ontario. All core samples were selected by the MacDonald Mines qualified site geologist, and were cut in half on site by diamond saw. For security, the remaining half core was then resealed in the original core boxes. Individual half core samples were labelled, placed in plastic sample bags and sealed. Groups of samples were placed into sealed and durable rice bags then shipped out by air transport. Remaining coarse reject portions of all samples remain in storage at the ACTLABS preparation laboratory storage facility at Thunder Bay.
Independent Quality Assurance and Quality Control Protocol
A QA/QC program has been implemented to monitor all assays from the current drilling program. Samples are assembled as batches and are continuously shipped from the site for immediate testing. Included in each batch of samples are certified reference standards (every 20 samples) and blank samples comprised of sterile drill core placed in at random locations (every 20-30 samples).
Quentin Yarie, P.Geo, Vice President of Exploration is the qualified person for the technical data contained within this report.
The following table identifies the highlighted Copper (Cu) and Zinc (Zn) values for the drill holes completed to date.
Please note that 10,000 ppm (parts per million) equals 1%, or 1 ppm equals 1 g/t.
Highlighted Copper Results
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Hole_ID From To Interval Cu_ppm Zn_ppm
------------------------------------------------------------------
MN10-102 24.00 25.00 1.00 5420 40200
MN10-102 25.00 26.00 1.00 6610 26300
MN10-102 26.00 27.00 1.00 18800 9030
MN10-102 27.00 28.00 1.00 13500 333
MN10-102 28.00 29.00 1.00 5980 343
MN10-102 29.00 30.00 1.00 6740 417
MN10-102 30.00 31.00 1.00 13100 456
MN10-102 31.00 32.00 1.00 10500 360
MN10-102 32.00 33.00 1.00 13100 235
MN10-102 33.00 34.00 1.00 9470 205
MN10-102 34.00 35.00 1.00 13600 418
MN10-102 35.00 36.00 1.00 11800 282
MN10-102 36.00 37.00 1.00 12200 209
MN10-102 37.00 38.00 1.00 5820 164
MN10-102 38.00 39.00 1.00 8540 267
MN10-111 74.50 75.50 1.00 8760 60
MN10-111 76.50 77.50 1.00 18800 72
MN10-111 77.50 78.50 1.00 6890 68
MN10-111 80.50 81.50 1.00 12700 61
MN10-111 81.50 82.50 1.00 9280 115
MN10-111 82.50 83.50 1.00 14100 226
MN10-111 83.50 84.50 1.00 9400 302
MN10-111 84.50 85.50 1.00 6430 248
MN10-90 39.62 40.38 0.76 9990 304
MN10-90 40.38 41.38 1.00 11300 239
MN10-90 41.38 42.38 1.00 8000 361
MN10-90 42.38 43.38 1.00 14000 2540
MN10-90 43.38 44.38 1.00 15900 21200
MN10-90 44.38 45.38 1.00 6330 16800
MN10-92 9 10.5 1.50 7210 38
MN10-92 10.5 11.5 1.00 7920 35
MN10-92 11.5 12.5 1.00 17000 40
MN10-92 12.5 13.5 1.00 10800 30
MN10-92 25.37 26.35 0.98 5380 54
MN10-92 26.35 27.35 1.00 12200 106
MN10-92 27.35 28.35 1.00 9340 98
MN10-92 43.6 44.58 0.98 6620 81
MN10-91 16.76 17.76 1.00 7580 187
MN10-91 17.76 18.76 1.00 7150 577
MN10-91 18.76 19.76 1.00 17700 1330
MN10-91 19.76 20.89 1.13 11200 26200
MN10-94 37.23 38.23 1.00 8620 7270
MN10-94 38.23 39.23 1.00 15400 33900
MN10-94 39.23 40.2 0.97 6010 21600
MN10-94 40.2 41.2 1.00 5000 14700
MN10-94 41.2 42.2 1.00 7650 10900
MN10-104 176.00 177.00 1.00 5520 19100
MN10-104 177.00 178.00 1.00 10600 53100
MN10-104 178.00 179.00 1.00 5670 36300
MN10-104 179.00 180.00 1.00 9620 9940
MN10-104 189.00 190.00 1.00 5810 552
MN10-104 190.00 191.00 1.00 15500 736
MN10-87 12.19 13.2 1.01 15700 17800
MN10-87 14.7 15.7 1.00 6100 9000
MN10-87 15.7 16.7 1.00 6600 8690
MN10-87 16.7 17.52 0.82 5000 9290
MN10-89 50.88 51.95 1.07 7500 237
MN10-95 116.55 117.2 0.65 6090 342
MN10-95 118.8 119.8 1.00 5100 370
MN10-95 125.1 126.1 1.00 6960 15800
MN10-99 146.00 147.00 1.00 9950 4070
MN10-100 143.26 144.40 1.14 5380 12700
MN10-105 58.00 59.00 1.00 12400 5090
MN10-106 59.00 100.30 41.30 5980 43600
MN10-106 100.30 101.30 1.00 7650 22400
MN10-107 101.30 130.30 29.00 6780 43
Highlighted Zinc Results
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Hole_ID From To Interval Zn_ppm Cu_ppm
------------------------------------------------------------------
MN10-104 152.5 153.3 0.80 7090 58
MN10-104 171 172 1.00 44000 2700
MN10-104 172 173 1.00 51700 1220
MN10-104 173 174 1.00 26100 365
MN10-104 174 175 1.00 33000 971
MN10-104 175 176 1.00 22500 862
MN10-104 176 177 1.00 19100 5520
MN10-104 177 178 1.00 53100 10600
MN10-104 178 179 1.00 36300 5670
MN10-104 179 180 1.00 9940 9600
MN10-106 94.34 95.3 0.96 18800 3470
MN10-106 98.3 99.3 1.00 7720 2880
MN10-106 99.3 100.3 1.00 43600 4300
MN10-106 100.3 101.3 1.00 22400 5980
MN10-106 101.3 102.4 1.10 28300 7650
MN10-110 71.5 72.5 1.00 16000 493
MN10-110 72.5 73.5 1.00 9600 412
MN10-110 77 78 1.00 8260 271
MN10-110 87 88 1.00 6610 515
MN10-110 94.3 94.8 0.50 100600 722
MN10-94 37.23 38.23 1.00 7270 8620
MN10-94 38.23 39.23 1.00 33900 15400
MN10-94 39.23 40.2 0.97 21600 6010
MN10-94 40.2 41.2 1.00 14700 5000
MN10-94 41.2 42.2 1.00 10900 7650
MN10-95 33.68 34.68 1.00 8110 42
MN10-95 41.2 42.2 1.00 6670 29
MN10-95 42.2 43.2 1.00 7610 76
MN10-95 43.2 44.2 1.00 8810 37
MN10-95 107.52 108.52 1.00 12900 687
MN10-95 108.52 109.5 0.98 12900 589
MN10-95 110.5 111.5 1.00 17800 1630
MN10-95 124.45 125.1 0.65 6730 3000
MN10-95 125.1 126.1 1.00 15800 6960
MN10-102 24 25 1.00 40200 5420
MN10-102 25 26 1.00 26300 6610
MN10-102 26 27 1.00 9030 18800
MN10-87 12.19 13.2 1.01 17800 15700
MN10-87 13.2 14.2 1.00 12400 4500
MN10-87 14.7 15.7 1.00 9000 6100
MN10-87 15.7 16.7 1.00 8690 6600
MN10-87 16.7 17.52 0.82 9290 5000
MN10-88 84.92 86 1.08 47800 960
MN10-88 86 86.91 0.91 48700 1980
MN10-89 153.13 154.25 1.12 31200 3010
MN10-90 43.38 44.38 1.00 21200 15900
MN10-90 44.38 45.38 1.00 16800 6330
MN10-90 47.47 48.47 1.00 16400 235
MN10-91 19.76 20.89 1.13 26200 11200
MN10-91 20.89 21.89 1.00 8850 521
MN10-99 143.6 144 0.40 7720 3410
MN10-99 144 145 1.00 12200 3470
MN10-100 143.26 144.4 1.14 12700 5380
MN10-105 47 48 1.00 11700 39
MN10-105 52 53 1.00 7440 4320
MN10-105 53 54 1.00 17200 2430
MN10-112 93.15 94.15 1.00 8180 322
MN10-112 152.89 153.89 1.00 9470 1870
MN10-112 156.89 157.89 1.00 13900 4720
Highlighted Silver Results
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Hole_ID From To Interval Ag_ppm
------------------------------------------------------
MN10-87 12.19 13.2 1.01 23.6
MN10-87 13.2 14.2 1 12.6
MN10-87 14.2 14.7 0.5 3.6
MN10-87 14.7 15.7 1 12.5
MN10-87 15.7 16.7 1 12.4
MN10-87 16.7 17.52 0.82 9.6
MN10-94 38.23 39.23 1 26.7
MN10-94 39.23 40.2 0.97 18.3
MN10-94 40.2 41.2 1 10.9
MN10-94 41.2 42.2 1 10.4
MN10-102 24.00 25.00 1 9.4
MN10-102 25.00 26.00 1 11.3
MN10-102 26.00 27.00 1 14.3
MN10-104 177.00 178.00 1 10.8
MN10-104 178.00 179.00 1 15.8
MN10-104 179.00 180.00 1 9.3
MN10-106 94.34 95.30 0.96 10.9
MN10-106 99.30 100.30 1 22.5
MN10-106 100.30 101.30 1 16.2
MN10-106 101.30 102.40 1.1 17.5
MN10-90 42.38 43.38 1 9.1
MN10-90 43.38 44.38 1 11.6
MN10-90 44.38 45.38 1 6.3
About MacDonald Mines Exploration Inc.
MacDonald Mines is a mineral exploration company with an established history in the exploration of gold and base metals. MacDonald has set upon a strategic direction of exploration in the Canadian Northlands, with particular focus on the "Ring of Fire" in James Bay, Ontario. More detailed information is available on the website at www.macdonaldmines.com.
Cautionary Statement:
The foregoing information may contain forward-looking statements relating to the future performance of MacDonald Mines Exploration Inc. Forward-looking statements, specifically those concerning future performance, are subject to certain risks and uncertainties, and actual results may differ materially from MacDonald Mines plans and expectations. These plans, expectations, risks and uncertainties are detailed herein and from time to time in the filings made by MacDonald Mines with the TSX Venture Exchange and securities regulators. MacDonald Mines does not assume any obligation to update or revise its forward-looking statements, whether as a result of new information, future events or otherwise.
FOR FURTHER INFORMATION PLEASE CONTACT:
MacDonald Mines Exploration Inc. Brent Nykoliation Vice President, Business Development (416) 364-4986 or (800) 818-5442 (416) 364-2753 (FAX)or
MacDonald Mines Exploration Inc. Quentin Yarie, P.Geo Vice President, Exploration (416) 364-4986 or (800) 818-5442 (416) 364-2753 (FAX)or
MacDonald Mines Exploration Inc. Kirk McKinnon President & CEO (416) 364-4986 or (800) 818-5442 (416) 364-2753 (FAX) info@macdonaldmines.com www.macdonaldmines.com
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