How are copper ores formed?
The main types of copper deposits are: porphyry, eg Bingham volcanogenic massive sulfides, eg Skelleftea sedimentary red bed, eg Aynak iron oxide (IOCG), eg Olympic Dam skarn, eg Battle Mountain copper shales (kupferschiefer), eg Katanga magmatic, eg Kambalda supergene oxide, eg La Escondida Each of these different deposit types results from very different geological processes and you could write many pages on each one…