Bar
Overview
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Other Local ExplorationSimilar host rocks to the Wolverine Zn-Pb-Cu-Ag-Au mine, currently under construction at the Finlayson Lake VMS district, 85km northeast. The Bar Property lies in the same package of rocks as the Convert Property. | |||||||
Property GeologyThe Bar property is underlain by the Yukon Tanana Terrane, an assemblage of metasedimentary and volcaniclastic rocks that include a very well developed, laterally extensive barite-silica horizon and chert pebble conglomerate defining an exhalative horizon. This barite-silica exhalite horizon contains minor amounts of sphalerite and galena and is locally associated with massive sulphide horizons up to 5 m thick.A number of metal rich transported gossans occur topographically below the exhalative horizon. These features are significant because they likely represent metal from sulphide deposits that have been leached into groundwater as the deposits weather and re-precipitated to form the transported gossans. | |||||||
Work Completed to DateDiamond drilling has been conducted in 11 holes along a 1.3 km trend within the central part of the current property boundary. Four holes drilled in 1980 primarily tested the eastern edge of the barite-silica horizon. The best intercept reportedly returned 1.88% Zn, 0.12% Pb and 17 g/t Ag across 3.0 m. The 1985 drill campaign consisted of five holes drilled to test what was interpreted as epithermal style sinter mineralization associated with transported gossans. Two holes were drilled within the southeastern portion of the barite-silica horizon and cut several pyrite-sphalerite-galena bearing intervals, the best of which returned 0.9 m grading 2.77% Zn, 0.43% Pb and 32.2 g/t Ag.Two holes drilled by Cominco Ltd. in 1997 at the northwest end of the favourable trend both encountered massive sulphide intervals. Hole 97-01 cut several, 1 to 2 m long intervals of massive pyrite, which are both veined and stratiform in nature. The best of these intervals returned 2.5% Zn across 1 m. Hole 97-02 encountered two intervals of massive pyrite, roughly 3 and 5 m thick, within a 10 m long section of core. The best interval from this section assayed 2.6% Zn across 1 m. Observations from the 1997 drill results suggest a thickening of the pyrite-barite mineralization to the northwest in an area that has received no mechanized follow up work. Helicopter-borne Versatile Time-Domain Electromagnetic (VTEM) surveys flown across the property in Spring 2006 identified four weak conductors that appear to be associated with stratigraphy. The magnetic response is also considered weak across the surveyed area and there is no correlation with the VTEM conductors. Three areas of positive VTEM response are subject to further modeling. The sulphide intersections from the previous drill campaign are not apparent as conductors from the VTEM survey. It is possible that the nature of the sulphide mineralization is such that there is encapsulation of the grains by a combination of silica and barite leaving only a marginal amount of connectivity between the sulphide grains and therefore a poor to non-existent conductive response. | |||||||
Recent Highlights3 holes were drilled in 2007, with a best intersection of 51 cm wide galena bearing gouge zone grading 932 g/t silver, 5.44% lead and 0.465% copper. | |||||||
