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Mount Isa Mines

A mining city in north-west Queensland, on Kalkadoon land, built on world-class copper and lead-zinc-silver orebodies in shale about 1,654 million years old; the prospector John Campbell Miles found them in 1923.

Dated events and their evidence

• about 1,654,000,000 years ago mainstream
  the Urquhart Shale, the black shale that hosts Mount Isa's lead-zinc-silver and copper orebodies, is laid down about 1,654 million years ago source
• 1923 CE mainstream
  the prospector John Campbell Miles finds the outcrops and names the place Mount Isa, after a friend's stories of the Mount Ida gold mines in Western Australia source

Where

20.7260° S, 139.4940° E

Sources

• https://doi.org/10.1016/j.chemgeo.2020.119975
• https://doi.org/10.18814/epiiugs/2012/v35i1/011
• https://en.wikipedia.org/wiki/Mount_Isa
• https://ozgeology.com/blogs/news/australias-deepest-mine-mount-isa

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