The mineralised zones extend up to 200m long and 100m deep. Except for trace amounts of chalcopyrite, base metals in the mine area are absent. MineralisationĮl Cubo contains a low sulfidation mineralised system with pyrite but no arsenopyrite. Other viable targets include near-surface weak stockworks that grade into disseminations. Veins hosted in the relatively open spaces are the primary mining targets.

The fault-associated deposits occur as open-space fillings in fracture zones or as impregnations in the regionally porous wall rocks. The principal rocks hosting the ore shoots include Guanajuato Conglomerate for the lower ores and Bufa Rhyolite for the upper ores. The project area contains approximately 38 veins that occur from an elevation of 2,650m down to an elevation of 1,730m. The veins are not specific to any rock type and occur in all the formations. The Escondida copper-gold-silver mine is located in the arid, northern Atacama Desert of Chile. Measured and indicated resources at the El Cubo mine are 4.4Moz of silver and 76,700oz of gold.Įscondida Copper, Gold and Silver Mine, Atacama Desert, Chile The proven and probable reserves of the mine are estimated at 6.3 million ounce (Moz) of silver and 101,100oz of gold. The new areas have been put to fast track development and exploration drilling is being conducted. Two newly mineralised areas were discovered at the mine in September 2013. The plant rebuilding was completed in May 2013. The programme involves further exploration and development of the mine, and rebuilding and expansion of the plant. This strike was declared illegal by the Federal Labour Board on 4 October 2010.Įndeavour Silver launched a $67m capital investment programme at the mine in the third quarter of 2012.

A retaliatory strike was launched on 30 June 2010. Operations at the mine were suspended for an indefinite period on 3 June 2010 due to a labour dispute by union workers that resulted in the dismissal of 397 employees. 'Two newly mineralised areas were discovered at the mine in September 2013.'

Area de un cubo