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World Copper Identifies New Opportunity at Zonia Copper Project in Arizona
Vancouver, British Columbia--(Newsfile Corp. - July 2, 2024) - World Copper Ltd. (TSXV: WCU) (OTC...
About this update from World Copper Ltd
[{"type":"text","content":"World Copper Identifies New Opportunity at Zonia Copper Project in ArizonaVancouver, British Columbia--(Newsfile Corp. - July 2, 2024) - World Copper Ltd. (TSXV: WCU) (OTCQB: WCUFF) (FSE: 7LY0)  (\"World Copper\" or the \"Company\") provides an update on its Zonia copper-oxide project in Arizona, USA (\"Zonia\" or the Zonia Project\").A review of historical data by World Copper's newly formed Technical Advisory Committee has revealed the potential for re-processing mineralized material that was included in the historical mine plan at the Zonia Project. This material, located on heap leach pads from historical production on private patented land, and last processed in the mid-1970s, was treated with acid to recover soluble copper. Two historical reports, a 1979 mine production summary report by McAlester Fuel Company (\"McAlester\") and a 1982 resource evaluation report by Mountain States Research & Development (\"MSRD\"), indicate that the site hosts over 14 million tons of historically mined material available for re-processing:7.1 million tons of run-of-mine mineralized material placed on three historical heap leach pads; and7.7 million tons of blasted and leveled in-situ leach (\"ISL\") mineralized material.For the material placed on the three heap-leach pads, the average original (pre-leaching) copper grade estimated by drilling prior to production was reported to be between 0.6% total copper (\"CuT\") (McAlester production report) and 0.4% CuT (MSRD report estimate based on drilling of the leach pads). This yielded 30.5 million pounds of copper during its operational period of March 1966 to March 1975, which means that between 26.7 and 55.1 million pounds of copper could remain unrecovered from the pads, based on the reported original grade of the mineralized material. McAlester further reported that between mid-1972 to March 1975, the ISL area produced 2.70 million pounds of copper from material with estimated original copper grades between 0.269% and 0.292% CuT (McAlester and MSRD respective estimates), indicating that this area could contain between 38.6 and 41.8 million pounds of copper. According to these two reports the total potential unrecovered material from both the three leach pads and the ISL area could range between 65 million pounds to 96 million pounds of copper. As a result, World Copper's Tech...