The Tannahill Property has emerged as a highly prospective exploration target for Abitibi Mining Corporation, which is focused primarily on exploring mineral districts in Ontario. The property is favorably situated 16 km south of the past-producing Holloway and Holt-McDermott gold mines and can be reached by road from Kirkland Lake, 35 km to the southwest.
The Tannahill property is underlain by a sequence of metamorphosed volcanic rocks, which in the southern portion of the property have been disturbed by a large syenite intrusion. Emanating from the intrusion and cross-cutting the host volcanic rocks are a series of radial syenite dykes, which are thought to have been formed when the syenite was intruded into the volcanic rocks, fracturing them. The radial fractures would be ideal passageways for the trans-portation of gold-bearing hydrothermal fuids and the deposition of gold mineralization.
Previous drilling has identifed two parallel gold-bearing structures – the Upper and Lower Zones – oriented northeast and dipping to the north. The Lower Zone holds the greatest exploration potential and has been traced for approximately 300 m of strike length at the 25-m and 50-m levels and remains open in both directions. At depth the zones widen and grades increase dramatically. Three holes below the 75-m level along 100 m of strike length have excellent widths with high gold grades (5.16 g/t over 5.0 m in drill hole T-96-9 and 7.02 g/t over 3.7 m in drill hole T-96-15). The drilling appears to substantiate the hypothesis of gold emplacement along radiating fractures. The Upper and Lower mineralized zones exhibit similarities with the style of mineralization in the Holloway and Holt-McDermott mines.
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