Discover Top Posts Tagged with #arkaroola

2025: Arkaroola, in South Australia, has some magnificent (and complex) geology. It is not close to anything but is worth a visit. These views are taken from Acacia Ridge, and show Cryogenian sediments of the Oodnaminta syncline. Ref: Australian Stratigraphic Units Database

#australia #south australia #arkaroola #geology #stratigraphy

Now that's camping under the stars

#arkaroola #instagram #south australia #nature

mottleytravellers NERD ALERT! 🚨🤓Apologies for the poor explanation but I was a little excited to see this spring. As I said (poorly) the naturally occurring Paralana Springs is the only known hot spring actually powered by the radioactive decay of Uranium in underlying Granite of the Arkaroola district; amazing! Rather than being heated by geothermal "hot rocks" like most natural hot springs, the breakdown of Uranium in these Granites actually heats the water that moves between the cracks in the rocks and also releases hydrogen, helium, and the hazardous radon gas; plus algal growth and bacterial life astoundingly is still present in the deadly radioactive waters 😲 If you ever do get the privilege to see this amazing little hot spring, please don't stay to long and try to reduce your exposure to less the 20 minutes (no swimming too of course).