The geology structure and mineralisation of the Oyu Tolgoi porphyry
The Central Oyu deposit accounts for ∼20% of the Southern Oyu Tolgoi open pit reserve and is the only deposit at Oyu Tolgoi where high sulphidation mineralisation is significant with about 80 vol % of the copper occurring as disseminated covellite accompanied by pyrite ∼10 vol % but lacking significant gold Crane and Kavalieris 2024