19.10.2010 | Editor: Marcel Dröttboom
London, United Kingdom – Anglo American has announced a 750 million tonnes mineral resource estimate for the West Wall copper project in central Chile’s Valparaíso Region. Anglo American and Xstrata Copper each have a 50 per cent interest in the mining company which holds the project.
The inferred mineral resource estimate for the project’s Lagunillas deposit, based on 57 drill holes (33600 metres), amounts to 750 million tonnes at a grade of 0.54 per cent copper and 0.01 per cent molybdenum, containing 4.0 million tonnes of copper using a 0.3 per cent copper cut-off grade. The mineral resource also contains estimated average grades for gold of 0.05 grams per tonne.
The West Wall project is located 100 kilometres northeast of Santiago and 70 kilometres north of the Rio Blanco – Los Bronces mineral district. Porphyry copper style hydrothermal alteration covers a large area of approximately seven kilometers by three kilometers. Exploration activities have focused in the south of the prospect at Lagunillas, where drilling has outlined copper sulphide resources associated with porphyry intrusive bodies.
Anglo American Head of Exploration for the Andes Region and West Wall board member, Vicente Irarrazaval, said: “This is an exciting new exploration accomplishment. In recent years Anglo American has been very successful in discovering copper deposits near our operations in Chile and we are pleased to include a new greenfield discovery that shows promising potential to add to our project development pipeline.”
This is the first mineral resource estimate published by Anglo American for West Wall.
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