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Location: 15 km W from Cloncurry, Queensland, Australia
Level 2, 45 Grenfell StreetAdelaideSouth Australia, Australia5000
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Copper Resources Australia Pty Ltd is the operator of the Rocklands Mine Project.
Hosted within metamorphosed meso-Proterozoic age volcano-sedimentary rocks and intrusive dolerites of the Eastern Fold Belt of the Mt Isa Inlier. Dominated by dilational brecciated shear zones containing coarse patchy to massive primary mineralisation, with high-grade supergene chalcocite enrichment and bonanza-grade coarse native copper in oxide. Structures hosting mineralisation are sub-parallel, east-southeast striking and steeply dipping. The observed mineralisation, and alteration, exhibit ffinities with Iron Oxide-Copper-Gold (IOCG) style deposits. Polymetallic copper-cobalt-gold mineralisation, and significant magnetite, persists from the surface, through the oxidation profile, and remains open at depth.The Rocklands copper-cobalt-gold mineralisation is hosted in a series of subparallel, east south east trending, steeply dipping zones. Mineralised lodes occur within a metamorphosed sedimentary succession of siltstone, sandstone/quartzite, quartz magnetite/jaspilite lenses, calcareous beds and calc-silicates of Proterozoic age. Copper is the dominant mineralisation at Rocklands, lesser amounts of cobalt and gold. Copper mineralisation extends from surface to depth with overlapping oxide, secondary and primary styles of copper mineralisation. Mineralisation appears to be associated with and controlled by steeply dipping, west northwest trending, linear, structures that cut the shallow dipping metasedimentary sequence at a high angle.Copper mineralisation extends from surface and is open at depth with overlapping oxide, secondary and primary styles. Primary sulphide mineralisation occurs at the base of a thick secondary mineralisation sequence of native copper and chalcocite with a minor complete oxidation zone.
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