supergene processes

Supergene processes refer to geological processes that occur near the Earth's surface, where minerals are altered by weathering and chemical reactions in the presence of water. These processes can lead to the formation of valuable ore deposits, as elements leach from primary minerals and are re-concentrated. For example, copper may dissolve and migrate, then precipitate in a more concentrated form, creating rich deposits. Supergene processes are important in mining as they can enhance the economic viability of ore bodies by enriching them in valuable metals through natural environmental processes.