Miners are taking a deeper look at the 80 per cent of the country that lies 'under cover', using new techniques to detect metal traces in sand, trees and groundwater.
Mining magnate Lang Hancock famously discovered the world's biggest iron ore deposit when he noticed the red-stained cliffs of a canyon while flying over the outback in the 1950s.
"You’re seeing more success as companies go out there and supply new technologies and new thinking into areas to find new big deposits," he said. "It has reset the maturity clock." There has been a perception that Australia is a mature destination and the big finds have been found [...] It has reset the maturity clock."These ancient landscapes have buried deposits," said Ryan Noble, a CSIRO scientist leading the development of the process.
Gum trees siphon up minute traces of gold from their roots to their leaves, which are then analysed in a lab."The gums were able to pick up moderate mineralisation down to about 60 metres," geologist Aaron Brown said.
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