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oxidized zone |
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The portion of an orebody near the surface that: (1) has been leached by
percolating water carrying oxygen, carbon dioxide, or other gases; or (2)
in which sulfide minerals have been partially dissolved and redeposited at
depth, the residual portion changing to oxides, carbonates, and sulfates.
CF: gossan;
sulfide zone. Syn:
zone of oxidation See also:
supergene enrichment
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