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The Lochinvar VMS deposit is adjacent to the former Hammerdown Mine, 3 km south of Kings Point near Springdale, Newfoundland. It is situated within 400 metres of a paved highway and 4 kilometres from Green Bay. The property is currently being taken to mining lease.
Lochinvar is the most significant and best documented of the base metal deposits in the Green Bay area, northern Newfoundland. Two main steeply-plunging, massive sulphide lenses have been traced from surface to approximately 200 metres depth where they remain open, though there are indications that they will be truncated at depth along the late Captain Nemo Fault. The mineralization is of relatively short strike length with a long axis plunging easterly. An non-43-101 compliant historical geological resource, starting at surface, of 588,000 tonnes (undiluted) with an average grade of 3.9% Zn, 1.4% Pb, 0.4% Cu, 60g/T Ag and 0.45 g/T Au was calculated by Major General Resources Ltd. (predecessor to Commander Resources Ltd.) in 1995 based on 18 drill holes. All assays were converted to Zn-equivalents based on prevailing metal prices of the day (1995).
Although there appears to be up to six distinct lenses, it is possible to group them into an upper and lower zone for the calculation. The Upper Zone contains 321,508 tonnes grading 4.02% Zn, 1.29% Pb, 0.48% Cu, 59.5 g/T Ag, and 0.30 g/T Au or 7.28% Zn-equivalent. The Lower Zone contains 266, 183 tonnes grading 3.74% Zn, 1.51% Pb, 0.40% Cu, 59.9 g/T Ag, and 0.64 g/T Au or (surprisingly) 7.23% Zn-equivalent. Grouping the two zones gives a total of 587, 691 tonnes grading 3.89% Zn, 1.39% Pb, 0.44% Cu, 59.7 g/T Ag, and 0.45 g/T Au. The mineralization consists of heavily disseminated to massive sphalerite, galena, chalcopyrite and pyrite with lesser barite and significant tennantite and electrum. It occurs within a steeply-dipping, strongly sericitized, carbonatized and locally chloritized, soda-depleted (0.2% Na˛0), schistose felsic volcanic package up to 75 metres thick. The altered felsic package is separated from an underlying undeformed mafic volcaniclastic unit by the "Captain Nemo Fault" and is overlain by a unit of aphyric, green andesite/dacite fragmental rocks. Two small lenses of the Golden Anchor Gold Zone occur in the immediate hanging wall of the Lochinvar base metal deposit. At a 5.0 g/t Au cutoff; the LI Zone has 7,065 tonnes grading 18.27 g/t Au, while the LM Zone contains 23,247 tonnes grading 7.82 g/t Au for a total of 30,312 tonnes at 10.26 g/t Au or 10,000 ounces contained Au. The "resources" described above were calculated in 1995 and are therefore historical in nature and do not comply with current regulations under NI-43-101. | ||||||||||||||||||
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