Cadia East underground

Porphyry copper (Cu-Au) deposit in New South Wales, Australia

Names and other identifiers

Tract name Macquarie (009pCu8002)
Group name Cadia Group
Included sites Group includes Big Cadia, Cadia East open pit, Cadia East underground, Cadia Far East, Cadia Hill open pit, Cadia Quarry, and Ridgeway deposits and Little Cadia prospect.
Site status deposit

Geographic location

Country Australia
State or province New South Wales
Geographic location 149.0123, -33.4565
Geologic map unit 149.0123, -33.4565
Nearby data

Geologic information

Deposit type Porphyry copper
Deposit subtype Cu-Au
Age (Ma) 441.8Ma
Age determination method Re-Os molybdenite
Age range 441.8 ±1.4 Ma (Re-Os); 451.0 ±1.4 Ma (U-Pb)
Age reference Wilson, Cooke, Stein, and others (2007, p. 8, 14)
Minerals albite, biotite, bornite, chalcopyrite, chlorite, gold, K-feldspar, magnetite, molybdenite, pyrite
Associated rocks volcanic rocks, shoshonitic volcanic and volcaniclastic rocks, shoshonitic diorite, monzonite, monzodiorite, and quartz monzonite porphyries
Tectonic setting island arc
Stratigraphic age Late Ordovician–Early Silurian

Commodity and development information

Development status Producer
Major commodities Cu, Au
Tonnage (Mt) 2,348Mt
Cu grade (%) 0.285%
Au grade (g/t) 0.43g/t
Ag grade (g/t) 0.47g/t
Contained copper 6,690,000t
Gold-Moly ratio -9999

Reference information

Comments Location, tonnage and grade of indicated + inferred resources from Geoscience Australia (2010); open at depth. Quartz-Cu-Fe-S stockworks, sheeted quartz veins.
Study area name Australia
References Wilson, Cooke, Harper and Deyell (2007); Wilson, Cooke, Stein, and others (2007); Cooke and others (2007); Geoscience Australia (2010)
Site reference Bookstrom and others (2014)