Cadia Quarry

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 148.9918, -33.4475
Geologic map unit 148.9918, -33.4475
Nearby data

Geologic information

Deposit type Porphyry copper
Deposit subtype Cu-Au
Age (Ma) 459.7Ma
Age determination method Re-Os molybdenite
Age range 466.6 ±1.5, 459.7 ±1.4 Ma, 450.8 ±1.4 Ma, 450.5 ±1.7, 443.5 ±1.4 Ma (Re-Os); 436.5 ±3.5 Ma (U-Pb)
Age reference Wilson, Cooke, Stein, and others (2007, p. 8–9, 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 Middle Ordovician–Early Silurian

Commodity and development information

Development status Prospect
Major commodities Cu, Au
Tonnage (Mt) 50Mt
Cu grade (%) 0.23%
Au grade (g/t) 0.46g/t
Contained copper 120,000t
Gold-Moly ratio -9999

Reference information

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