Selwyn Resources’ second major discovery is proving even richer than expected.
The Don deposit is located at the Selwyn Project on the Yukon-NWT border, owned by Selwyn Chihong Mining Ltd., a joint venture between the Vancouver-based company and a Chinese backer.
Early estimates of the zinc-lead contained in the Don Valley deposit were based by historic data from nearby projects dating back to the 1970s.
The first major exploration program on the entire project pegged the Don deposit at around 37 million tonnes.
But the results of a drilling program conducted between November 2011 and April 2012 show the deposit to have a resource of nearly 42 million tonnes of zinc and lead, at a higher grade than original expected.
According to a company press release this week, the findings support the plan for an underground mine on the property. They also buttress a revised plan to scale back initial production to the highest-grade minerals at half the originally-projected production, the release said.