12. Supergene Ore and Gangue Characteristics

copper and other metals are mobilized from primary massive sulfide ore and reprecipitated at depth. This precipitation of Cu sulfides with high Cu/S ratios can produce an economically significant copper enrichment at the reactive redox boundary between massive sulfide protore and downward penetrating fluids. The supergene enrichment "blanket" is overlain by an intensely altered and leached

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Supergene Oxidation of Copper Deposits: Zoning and

the nature and distribution of copper minerals occurring in oxide accumulations associated with weathering of copper sulfide deposits, with emphasis on minerals that occur in the supergene oxide zones of porphyry copper and skarn ore deposits."Copper oxides" are defined as those copper minerals containing oxidized anions, especially copper oxides, sensu strictu, sulfates, phosphates

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The Alteration Mechanism of Copper -

The copper deposits in the world are widely distributed across five continents including more than 150 countries 1.According to the proportion of oxide minerals and sulfide minerals in copper ores

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