Sparton Resources Reports Encouraging Initial Results From Sierra Rosario Project, Sinaloa, Mexico
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January 10, 2005
International Northair Mines Ltd. (TSXV: INM) (“Northair”) has received assays from a reconnaissance sampling program conducted in December, 2004 by Sparton Resources Inc. (TSXV: SRI) (“Sparton”), on Northair’s Sierra Rosario project. The project lies along the western flanks of the Sierra Madre Occidental geological province in the state of Sinaloa, Mexico and was staked by Northair as part of the company’s ongoing, highly successful, generative exploration activities in the region.
Sierra Rosario hosts a number of gold and silver occurrences, some of which are associated with base metal mineralization discovered by Northair’s exploration staff in 2002. The San Rafael Zone, the principal zone identified by Northair, is comprised of a northwest trending mineralized and silicified quartz feldspar porphyry approximately 200 metres long and 70 metres in width. Twenty-three chip channel samples taken primarily from this zone by Northair averaged 181 g/t silver and 0.32 g/t gold with eight grab samples averaging 200 g/t silver and 1.79 g/t gold (with a high value of 711 g/t silver and 10.79 g/t gold). These results indicate that the zone has the potential to host a bulk mineable polymetallic precious/base metal deposit.
Sparton staff visited the area in December 2004 accompanied by Northair personnel and completed an initial stream sediment survey and rock sampling program designed to confirm previous results and locate source areas for the extensive old alluvial workings.
Eighteen stream sediment samples were taken during the initial Sparton work program, covering side drainages on both the east and west sides of the claim. Seven of these samples returned anomalous results in gold, silver, copper, lead and zinc as summarized below.
Sample No. |
Gold ppb |
Silver ppm |
Copper ppm |
Lead ppm |
Zinc ppm |
Remarks |
SS-1 |
43 |
3.6 |
107 |
49 |
122 |
Near old alluvial pits |
SS-7 |
13 |
3.5 |
138 |
94 |
157 |
“ |
SS-13 |
6 |
0.6 |
168 |
19 |
92 |
Central part of claim |
SS-15 |
103 |
6.1 |
201 |
26 |
93 |
North part of claim |
SS-16 |
73 |
7.0 |
205 |
189 |
357 |
“ |
SS-17 |
11 |
1.4 |
129 |
60 |
93 |
“ |
SS-18 |
547 |
11.1 |
301 |
306 |
514 |
“ |
Other samples have either low or background values for silver and/or base metals or are below the detection limit (5ppb) for gold. These anomalous stream sediment sample results indicate both possible source areas for the old alluvial gold workings from both the south and central part of the claim and possible extension of the San Rafael Zone in the north.
Sparton also collected ten rock samples from the San Rafael Zone and other parts of the property. The results confirm the previous Northair sampling and indicate possible new areas of mineralization that require evaluation.
Sparton has reported that a detailed follow-up program of gridding, soil sampling, mapping and additional stream sediment sampling will begin in early February 2005. Road access will be established to the San Rafael Zone and it is likely that an induced polarization survey will be undertaken in this area as well.
Sparton’s exploration program is being carried out under the direct supervision of A. Lee Barker, P. Eng., P Geol., the Company’s President and CEO who is a Qualified Person under National Instrument 43-101.
The terms of the Sierra Rosario Agreement allow Sparton to earn a 51% property interest by paying Northair $130,000(Cdn) in cash, issuing 275,000 common shares and incurring $800,000(Cdn) in exploration expenditures over a four year period.
Elsewhere in Mexico, Northair maintains its aggressive generative exploration program while planning additional work on its current property portfolio. The Company will continue to keep shareholders informed as exploration proceeds.
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