Geochemist Mel Lintern said it appeared the trees sucked up the gold particles from 30 metres (100 feet) below the ground through their roots.
"The eucalypt acts as a hydraulic pump -- its roots extend tens of metres into the ground and draw up water containing the gold," he said.
"As the gold is likely to be toxic to the plant, it's moved to the leaves and branches where it can be released or shed to the ground.
ආයෝජකයින් ට මහඟු අවස්ථාවක්
අපේ රන් ගස් වල ආයෝජනය කරන්න.
පැල 10 ක් ලක්ශ 5 යි.
අප විසින් ගෙවන මුදල වසර 20 කින් පසුව මිලියන් 100 යි !