Limonite Hill

Porphyry copper deposit in Queensland, Australia

Names and other identifiers

GMRAP ID 641
Alternate names Bajool
Tract name East Tasmanide - Central sub-tract (009pCu8004b)
Site status deposit

Geographic location

Country Australia
State or province Queensland
Geographic location 150.63, -23.6869
Geologic map unit 150.63, -23.6869
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 244Ma
Age determination method K-Ar sericite
Age range 244 ±5 Ma
Age reference Ford and others (1976)
Minerals chalcopyrite, chlorite, clay, epidote, galena, gold, limonite, magnetite, molybdenite, pyrite, sericite, sphalerite
Associated rocks argillitic metasedimentary rocks, andesitic volcanic and intrusive rocks, granodiorite, granodiorite porphyry, quartz-diorite porphyry, breccia
Tectonic setting continental margin
Stratigraphic age Early Triassic–Middle Triassic

Commodity and development information

Development status Prospect
Major commodities Cu
Tonnage (Mt) 100Mt
Cu grade (%) 0.3%
Contained copper 300,000t
Gold-Moly ratio -9999

Reference information

Comments Location from Geoscience Australia (2010); estimated tonnage and grade from Ewers and others (2002). Breccia pipe, apparently low grade (Singer and others, 2008). Fracturing weak to moderate, locally strong. Middle to upper part exposed. Secondary enrichment weak to moderate, locally strong.
Study area name Australia
References Ford and others (1976); Horton (1978); Lacy (1980); Singer and others (2008); Ewers and others (2002); Geoscience Australia (2010)
Site reference Bookstrom and others (2014)