The update outlines 58.6 million measured and indicated tonnes grading 1.49% total rare earth oxides (TREO) for 875,000 tonnes of contained TREO, 14% lower than for the same categories in the 2013 feasibility study, Avalon reported Thursday. Growth in the update is mostly in the inferred resources, which more than doubled to 130.6 million tonnes at 1.31% TREO for 1.7 million contained tonnes. Among continent’s largestBasal remains one of the largest rare earths deposits in North America by contained tonnes and among Canada’s top four for rare earths. The resource update is based on about 120,000 metres of drilling across 582 holes. While the 2013 feasibility study outlined proven and probable reserves for Basal, those estimates weren’t carried into the update, Avalon said.