1.4 opt gold over 13 ft, Nixon Fork Gold Mine
VANCOUVER, BC - Fire River Gold Corp. reported announce high grade assay results from the ongoing re-evaluation program from its 100% owned Nixon Fork Gold Mine Project in Alaska. The Company has received assay results from three holes with hole N07U033 returning a high grade intercept of 1.4 opt (47 g/t) gold over 13 ft (4 metres) and hole N07U037 returning 0.83 opt (28.5 g/t) gold over 15.5 ft (4.7 metres) and hole as part of the ongoing geological re-evaluation program for the Nixon Fork Gold Mine Project in Alaska.
In the years 2007 to 2008, the former operator drilled 9400 metres in 110 holes, the results of which have never been previously disclosed to the public. This is the second reporting of relogging and sampling of drill holes completed in 2007. An additional 79 drill holes from 2007 have assays pending or are pending QAQC evaluation.
Because the 2007 and 2008 results were not formerly reported, a careful review was initiated by FAU of all quality control and quality assurance procedures used by the former operator. Although original check assays from the 2007 drill program were not documented, it is clear, however, that certified standards were used. The re-sampling program of the 2007 drill core is essentially a modified field duplicate exercise of the original assay results.
The re-sampling of the remaining half-cores, were fully analyzed except in rare cases where quarter-cores were used.╩
Sampling of core-duplicates as compared to FAU's pulp-duplicates can produce a high degree of variability in the results due to the :nugget effect" of gold mineralization that occurs at Nixon Fork. This nugget effect was clearly evident in the bonanza grades reported for the 2008 drilling.
Most of the drill program completed in 2007 was designed to test projections of known mineralized zones, such as the 3300 zone with modest step-outs down and up dip as well as along strike. Step-outs ranged from 7.5 metres to more than 40 metres from known zones.
Every effort has been made to replicate the previous sample intervals except when a previous sample crossed a lithological or mineralized boundary. In these cases the new 2010 samples were terminated at such boundaries. The differences in lengths of the intervals may account for some of the variability in gold grades. In general, the assays are in conformity, especially for a comparison of field duplicate samples in a high-grade, coarse gold system.
The Nixon Fork Gold Mine produced significant bi-product copper and silver. Until the closure of the mine in 2007, reported copper production was 1.27 million lbs and silver production was 19,566 ounces from 106,137 tonnes mined. Historic recovered grades are about 0.6% for copper and 0.18 opt for silver.
The company's address is 2303 West 41st Avenue, Vancouver, BC V6M 2A3, 604-685-1870, fax: 604-685-8045, email: [email protected].