VANCOUVER, British Columbia, Oct. 7, 2004 (PRIMEZONE) -- Atna Resources Ltd. (TSE:ATN) is pleased to announce additional results from the re-assay program on the Pinson property. These results mark the completion of the re-assay program.
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Drill From To Intercept Replicate
Hole ft ft Length Assay
ft g/t Au
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CX ZONE
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RH-465 325 360 35 16.89
and 460 475 15 16.90
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RHA-1402 430 485 55 15.50
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HPC-173 1115 1127.2 12.2 13.27
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RH-464 625 640 15 9.36
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HPR-067 685 705 20 7.65
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RANGE FRONT ZONE
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HPR-050 670 725 55 16.49
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HPC-161 1401 1429.3 28.1 15.09
and 1961.2 1970.0 8.8 16.20
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HPC-162 1465 1504 39 9.5
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Assays were done by standard fire assay methods at ALS Chemex Laboratories in Reno, Nevada.
The holes that were re-assayed broadly outline two zones of mineralization that dip at 55 - 75 degrees below the previously mined pits. The following description of each of the zones relies on a 0.20 oz. Per ton gold cutoff. No other effort has been made to be selective and additional drilling is required to define the higher-grade portions of the mineralization and to make a meaningful resource calculation. In general, drill hole spacing is 100-200 feet nearer surface and opens to as much as 500 - 600 feet at depth.
1) CX ZONE:
* Extends from the lower part of the CX pit down dip for more
than 1400 ft (430 meters).
* Strike length varies from 800 ft to 1200 ft
(245 - 365 meters)
* The drill intercept widths vary from 5-80 ft
(1.5 - 25 meters) and average 22.5 ft (6.9 meters).
* The weighted average intercept grade is 0.38 oz/ton Au
(12.9 g/tonne Au).
* Mineralization remains open along strike and at depth.
2) RANGE FRONT ZONE
* Dip length over 2,100 ft (640 meters) starting at 250 ft
(76 meters) below surface.
* Strike length 1,000 - 1,200 ft (305 - 365 meters)
* Drill intercept lengths from 5-75 ft (1.5 - 23 meters),
averaging 15.8 ft wide (4.8 meters).
* Weighted average intercept grade is 0.434 oz/ton Au
(14.9 g/tonne Au).
* Mineralization remains open along strike and at depth.
The geological style of the gold mineralization, including the host rocks, structure, and alteration, closely resembles the nearby Getchell deposit being operated by Placer Dome, as well as other deposits in the immediate district. The potential to discover additional mineralization is significant in both the CX and Range Front Zones and in a number of other target areas identified on the property.
There are four machines infill drilling at the CX and Range Front mineralized zones to enable calculation of a 43-101 qualified resource, 3-D modeling, and engineering required for the planning of an underground phase of the program to define and develop the mineralization.
This news release was prepared under the supervision and review of William Stanley, VP Exploration of Atna, a licensed Geologist, and Qualified person with the ability and authority to verify the authenticity and validity of information contained within this news release. Assays were completed by standard fire assay methods at ALS Chemex laboratories in Reno, Nevada.