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Breccias, Fluids & Copper Mineralization in the Mount Isa & Cloncurry Region, NW Queensland

The Proterozoic Mount Isa district is home to world-class base metal and IOCG deposits. A central theme to the copper mineralization in the district is the strong association between brecciation, veining and copper mineralization, with many orebodies being defined by a spatial and genetic association with breccias. This field trip will focus on connections between copper mineralization and their host structures. We will examine mineralized and barren breccias from the district, including the world-famous Mt Isa Copper and Ernest Henry IOCG deposits, and the Starra-Selwyn-Swan Cu-Au-Pb-Zn and IOCG deposits. There will also be field visits to exceptionally well exposed breccias from which the connections between deformation, fracturing, fluid release from granites, and mineralization may become evident to the participants. To keep costs down and socializing up, accommodation is mostly in the JCU Roxmere field camp, with one night in Mount Isa. Participants should bring a sleeping bag, a small pillow or something to stuff clothes in to make into a pillow, towel and toiletries. The weather at that time of year is likely to be around 10 to 18ºC minimum (average 15), 27 to 32 ºC maximum (average 29), and dry/fine (almost no chance of rain). Transport will be by 4WD and minibus, from Mt Isa. Potential participants can reduce travel costs by securing a ride in JCU vehicles travelling to and from Mt Isa the days before and after the trip.


Nick Oliver

Brian Rusk


All enquires are to be directed to the Field Trip Leaders


22nd - 27 August -  6 days


NW Queensland

Cost: $1300.00 AU

includes meals, transport and accommodation


via online registration form

Max. Number of Participants


This field trip begins and ends in Mt Isa.



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