International Northair Mines Ltd.

International Northair Mines Ltd.

March 31, 2011 08:00 ET

Northair Intersects 48.05 Metres of 140.6 g/t Silver at La Cigarra Project, Mexico

VANCOUVER, BRITISH COLUMBIA--(Marketwire - March 31, 2011) - International Northair Mines Ltd. (TSX VENTURE:INM) (the "Company" or "Northair") is pleased to announce assays results from four holes of the Phase II core drill program presently underway at the La Cigarra silver project, located in north central Mexico. Drill results are highlighted by: 

  • 53.70 metres of 87.1 g/t silver in Hole CC-11-004 at the San Gregorio Zone; and
  • 48.05 metres of 140.6 g/t silver in Hole CC-11-005 at the Las Carolinas Zone.

Drilling continues at San Gregorio with further drilling scheduled at Las Carolinas, as well as at the La Borracha Zone located 1 kilometre to the northwest of San Gregorio.

"We continue to be very pleased with the results of the drill program at La Cigarra," said Fred Hewett, President & CEO of Northair. "The recent drill holes completed at the San Gregorio Zone returned excellent silver values over significant widths and successfully extended the strike length of the zone by 100 metres. At the Las Carolinas Zone, located 1,100 metres southeast of San Gregorio, drilling has encountered similar geology to that in San Gregorio along with significant silver values. Both zones remain open along strike and down dip. The results from these two zones, along with the intervening 1.1 kilometres of untested ground provides excellent immediate upside exploration potential."

Drill Results:

San Gregorio Zone
  From   To   Drill Intercept Silver Gold
Hole (metres ) (metres ) (metres) Note3 g/t g/t
CC-11-003 38.40   148.30   109.90 51.3 0.066
Includes 38.40   90.25   51.85 81.6 0.097
Includes 64.10   74.00   9.90 177.8 0.070
Includes 115.20   148.30   33.10 33.3 0.041
CC-11-004 17.60   24.95   7.35 148.6 0.081
Note 1 17.60   24.95   7.35 136.8 0.081
  46.90   100.60   53.70 87.1 0.044
Includes 57.60   80.25   22.65 175.5 0.063
  140.50   166.65   26.15 23.3 0.032
Las Carolinas Zone
  From   To   Drill Intercept Silver Gold
Hole  (metres ) (metres ) (metres) Note3 g/t g/t
*CC-11-005 1.35   4.00   2.65 79.7 0.054
  14.10   62.15   48.05 140.6 0.057
Note 1 14.10   62.15   48.05 95.4 0.057
Includes 14.10   36.20   22.10 263.0 0.090
Note 1 14.10   36.20   22.10 163.4 0.087
Includes 17.20   31.80   14.60 382.3 0.108
Note 1 17.20   31.80   14.60 233.5 0.108
  91.10   94.85   3.75 27.4 0.044
*CC-11-006 0.00   5.50   5.50 51.20 0.069
  21.35   53.30   31.95 79.10 0.082
Includes 21.35   41.70   20.35 109.2 0.115
Includes 23.10   34.35   11.25 173.5 0.169
Note 1: Intervals with silver values greater than 500 g/t reported as 500 g/t.
Note 2: Reported widths may contain intervals with values less than 10g/t silver.
Note 3: True widths estimated +/- 80% of drill intercept. 
* Both holes at Las Carolinas encountered significant silver grades at their collar (396 g/t and 104 g/t) and drilling further to the east will be necessary to ensure the full width of the zone has been tested.

To view the site plan and cross sections of the drilling please click on the following links:

Drilling Areas (San Gregorio Zone and Las Carolinas Zone):

Plan View of the San Gregorio Zone:

Vertical Section of the San Gregorio Zone (Hole CC-11-003):

Plan View of the Las Carolinas Zone:

Vertical Section of the Las Carolinas Zone (Hole CC-11-005):

Geological Discussion

Mineralization at the La Cigarra property occurs within an altered package of thinly bedded siltstones, argillites and minor quartzites intruded by diorite dykes; with the majority of the mineralization concentrated within a fault controlled corridor following the outer edge of a granodiorite stock. Superimposed on the entire package (including the granodiorite stock) are vuggy, silicified zones and a weak to moderately developed quartz stockwork with well developed druzy textures. A number of post mineral faults cut the zones at steep angles. Displacements appear largely horizontal but clearly include a vertical component.

At the San Gregorio Zone, silver values occur in druzy quartz veining and stockwork within siltstones and porphyritic diorite to quartz diorite dykes. Throughout the zone silver values appear related to finely disseminated tetrahedrite. Petrographic studies are underway to define the mineralogy hosting the silver grades. Oxidation appears to extend to about 55-60 metres below surface.

  • In Hole CC-11-003, multiple silver bearing intervals occur in druzy quartz veining and stockwork within a steep (-70° to -75°) dipping corridor measuring at least 110 metres wide. 
  • In Hole CC-11-004, silver values occur in similar druzy quartz veining and stockwork, with an increase in both the size and number of diorite dykes as compared to Hole CC-11-003; and an increase in the apparent width of the corridor to 165 metres.

At the Las Carolinas Zone, located approximately 1,100 metres southeast and 130 metres vertically lower than the San Gregorio Zone, both Holes CC-11-005 and CC-11-006 encountered similar geology to that at San Gregorio and were apparently collared within the mineralized corridor. In both holes silver values occur from immediately below the overburden and extend into the upper part of the granodiorite stock indicating a minimum silver bearing corridor of 60 metres in width with a dip of approximately 65°. Prospecting to the east of the drill holes on surface has identified druzy quartz veining in outcrop and encountered silicified, vuggy and druzy quartz veined float for at least 50 metres before encountering rhyolite ignimbrites, which are believed to cap the mineralization. 

Sampling and QA/QC

All technical information for the La Cigarra exploration program is obtained and reported under a formal quality assurance and quality control (QA/QC) program. Samples are taken under the direction of qualified geologists and stored in sealed bags. Samples are delivered by the Company via courier to ALS Chemex Labs in Chihuahua for drying, crushing and pulverizing; with the pulps sent airfreight by ALS Chemex to Vancouver B.C. for analysis. Systematic assaying of standards and blanks are performed for precision and accuracy. Analysis for silver, zinc, lead and copper and related trace elements was done by ICP four acid digestion, with gold analysis by 30 gram fire assay with an AA finish.

About the La Cigarra Silver Project

The La Cigarra Project is located in State of Chihuahua along the eastern fringes of the Sierra Madre Occidental in Mexico. Local topography is gentle with good road access to the major city of Parral, located 26 kilometres to the south east. The La Cigarra Project hosts a silver-rich, epithermal mineral system with three identified zones along a three kilometre trend. Grupo Northair de Mexico, S.A. de C.A., a subsidiary of Northair, can acquire a 100% property ownership by making payments over a 5 year period totaling US$445,000 with no royalties.

This news release has been prepared in accordance with Canadian regulatory requirements set out in National Instrument 43-101 and reviewed by Fred Hewett the Company's President and CEO, and a Qualified Person under NI 43-101. 



Fred G. Hewett, P.Eng., President & CEO

This news release may contain forward looking statements which are not historical facts, such as ore reserve estimates, anticipated production or results, sales, revenues, costs, or discussions of goals and exploration results, and involves a number of risks and uncertainties that could cause actual results to differ materially from those projected. These risks and uncertainties include, but are not limited to, metal price volatility, volatility of metals production, project development, ore reserve estimates, future anticipated reserves and cost engineering estimate risks, geological factors and exploration results. See Northair's filings for a more detailed discussion of factors that may impact expected results.

This news release does not constitute an offer to sell or solicitation of an offer to sell any securities in the United States. The securities have not been and will not be registered under the United States Securities Act of 1933, as amended (the "U.S. Securities Act") or any state securities laws and may not be offered or sold within the United States or to U.S. Persons unless registered under the U.S. Securities Act and applicable state securities laws or an exemption from such registration is available.

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 news release.

Contact Information

  • International Northair Mines Ltd.
    Fred Hewett
    604-687-7545 or 1-888-338-2200
    International Northair Mines Ltd.
    Chris Curran
    Investor Relations
    604-687-7545 or 1-888-338-2200
    604-689-5041 (FAX)