General

A visit to Ranger Uranium Mine

I visited the Ranger Uranium Mine on Saturday 27th May as Energy Resources Australia (ERA) were holding a public Open Day.  Anti-uranium mining sentiment remains strong in the Territory to this day but the mini-buses for tours to the mine were full.

The Australian Federal Government legislated for the development of the Ranger Mine in 1976 and, interestingly, the first stage of the Kakadu National Park (KNP) was declared in 1979.  So perhaps without the mine, there would be no KNP – a political compromise, perhaps?

Traditional owners of the land on which the mine operates have been paid substantial mining royalties over the years. The town of Jabiru was originally built to accommodate the mine’s workforce in 1982 but also now acts as the service centre for tourism within KNP.  A 2007 study[1] estimated $15 million per year in tourism revenue was being contributed directly to the Top End region by the existence of KNP.  The Supervising Scientist of the Department of Environment and Energy says there is no impact from mining on the environment of KNP[2].

So what will happen to KNP tourism, the town, traditional owner groups and the mine-site when the mining lease expires in 2021? This will definitely be an interesting space to watch.

[1] Economic contribution of Kakadu National Park to tourism in the Northern Territory, Pascal Trembley, Sustainable Tourism CRC.

[2] https://www.iaea.org/OurWork/NE/NEFW/GC/GC2015/FoRUM/McAllister_Australia.pdf September 16, 2015.

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Local Ranger Mine rocks – pick the ore. It’s the one in the middle – the most boring looking one. The smoke alarm was there to demonstrate the relative levels of radiation emitted by each specimen. With the Geiger counter measuring alpha radiation, the ore measured 3 to 4 counts per second (cps) which was similar to the smoke detector, with background being about 0.5 cps.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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The dominant primary ore mineral at Ranger is Uraninite but the mine also processes secondary, lateritic mineralisation called Saleeite.

 

 

 

 

 

 

 

 

 

 

 

 

 

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Uranium oxide product from the mine – as “Yellow cake” on the left, but usually not yellow at all, on the right.

 

 

 

 

 

 

 

 

 

 

 

 

 

View towards the west across Pit 3. Mining ceased in November 2012 and the pit is now being used for tailings storage (note the slurry in left foreground).
View towards the west across Pit 3. Mining ceased in November 2012 and the pit is now being used for tailings storage (note the slurry in left foreground).

 

 

 

 

 

 

 

 

Processing facilities at Ranger, looking south across Pit 3 toward Mt Brockman
Processing facilities at Ranger, looking south across Pit 3 toward Mt Brockman.

 

 

 

 

 

 

Release Pond 1 containing clean water for release and (apparently) 2 resident crocs.
Release Pond 1 containing clean water for release and (apparently) 2 resident crocs.

 

 

 

 

 

 

 

A rehabilitation success story of a partially developed deposit that will not be mined. Ranger itself may one-day look this good.
A rehabilitation success story of a partially developed deposit that will not be mined. Ranger itself may one-day look this good.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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