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News Link • Biology, Botany and Zoology

"Gold leaf" trees discovered in the Australian outback

• gizmag.com
 

Scientists from Australia's Commonwealth Scientific and Industrial Research Organisation (CSIRO) have discovered that eucalyptus trees in the Australian outback are drawing up gold particles from deep underground through their root system and depositing the precious metal in their leaves and branches. Rather than being a new source of "gold leaf," the discovery could provide a cheaper, more environmentally friendly way to uncover valuable gold ore deposits.

Using the science organization's Maia detector for x-ray elemental imaging at the Australian Synchrotron, the researchers were able to produce images that clearly showed deposits of gold and other metals in the structure of Eucalyptus leaves from the Kalgoorlie region of Western Australia that would have been untraceable using other methods.

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