07/01/2024
Copper ore is typically found in the Earth’s crust in the form of copper minerals, such as chalcopyrite, bornite, malachite, and chalcocite, among others. The formation of copper ore deposits involves complex geological processes, including hydrothermal activity, magmatic intrusions, and weathering of rocks. Copper ore deposits are found in various types of geologic environments, including porphyry deposits, skarn deposits, sedimentary deposits, and volcanogenic massive sulfide deposits, among others.
Slide_2 & 3_Tectonic Setting
On the basis of tectonic environment VMS deposit are divided into the types :
(a) Kuroko : It is associated with direct magmatic intrusion which takes Pb and forms a polymatallic deposit Pb-Zn-Cu. Formed in collisional setting in a island system.
(b) Besshi : It is not associated with direct magmatic intrusion but due to high pressure and temperature , this type of deposit is formed (Cu-Zn). Formed in Basin environment related to subduction zone.
(c) Cyprus : This type of deposit is associated with extensional setting, formed in MOR regions (o-o divergence). Here ultramafic - mafic melt comes in contact with sea water to form Cu-Zn deposit.
Other than this oxidation and supergene deposit are the large source of native copper.
Slide_4_Major Indian Occurrence
Slide_5_Uses
Slide_6_Deposits
The world's leading producer of copper is Chile, followed by the Congo, Peru, China and the US.
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