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Chesapeake Announces Metallurgical Testwork Update
Vancouver, British Columbia--(Newsfile Corp. - September 6, 2023) - Chesapeake Gold Corp. (TSXV: ...
About this update from Chesapeake Gold Corp.
[{"type":"text","content":"Chesapeake Announces Metallurgical Testwork UpdateVancouver, British Columbia--(Newsfile Corp. - September 6, 2023) - Chesapeake Gold Corp. (TSXV: CKG) (OTCQX: CHPGF) (\"Chesapeake\" or the \"Company\") is pleased to provide a metallurgical and mineralogical update for its world-class Metates gold-silver project located in Durango State, Mexico.Alan Pangbourne, CEO, commented, \"We are very encouraged with the latest results from this phase of metallurgical testwork. A systematic, methodological approach individually testing several parameters under different conditions is being undertaken in 42 columns. The results have identified certain parameters that provide the conditions where the leach technology oxidizes mineralization at a faster rate than our previous testwork. Under these conditions, we believe the targeted oxidation curve will be achieved and provide the foundation for preparing the pre-feasibility study early next year.\"Metallurgical Testwork Program Since our last update in September 2022 (NR04-2022), our metallurgical work has continued to investigate various parameters to improve the oxidation rates of our sulphide leach technology. The focus has included investigating several ways to accelerate the oxidation kinetics and to understand how to improve and optimize the oxidation rate. Lab Photo with Over 40 Columns Currently Under Oxidation or Cyanide LeachTo view an enhanced version of this graphic, please visit:https://images.newsfilecorp.com/files/752/179628_e35384f56479b900_002full.jpgThe parameters tested during this stage of work include: (i) finer crushing sizes from ½\" to ⅜\" to ¼\" and the use of High Pressure Grinding Rolls (\"HPGR\") to produce a very fine crush at approximately 3mm; (ii) varying reagent strengths; (iii) targeting different pH's; (iv) testing on/off irrigation; (v) applying other oxidants; and (vi) varying air injection rates. As illustrated in the lab photo above, over 40 columns are currently under oxidation or cyanide leach. Oxidation Rates for the Metates Massive Instrusive SamplesTo view an enhanced version of this graphic, please visit:https://images.newsfilecorp.com/files/752/179628_e35384f56479b900_003full.jpgThe above graph illustrates the oxidation rates for the Metates massive intrusive samples and highlights the improved oxidation rates relative to previou...