Ore deposits

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This is a transcript of a QuickTime movie (2.4 MB) recorded in the Pilbara in 2005. Dr Martin Van Kranendonk, a geologist with the Geological Survey of Western Australia, talks about the ore deposits near Marble Bar.


Another nice thing here is you get cross sections of crust, you know, it’s a beautiful three dimensional tool for studying how crust built up through time, what processes went on during that building up of crust, where might we find mineral deposits because you can actually see sections of rock and how fluid moved through that crust. And when you get fluid moving through the crust it strips metals and it gets concentrated into zones and that’s where you get ore deposits. So Marble Bar was really exploited because of its ore deposits back at the turn of the century. There was a big gold mining rush in about 1890/92.




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