
Gold in them thar hills
THE term “gold leaf” now has a whole new meaning. CSIRO research has shown that gold does grow on trees. Or perhaps it would be more correct to say that trees grow in gold. That’s the concept behind a mineral discovery technique CSIRO pioneered which is now being used successfully by gold exploration and mining companies. Marmota Limited, a gold mining company working out of South Australia, recently reported IT had identified new gold targets using biogeochemical sampling at its Aurora Tank prospect. Put simply, biogeochemical sampling involves taking samples of vegetation, such as leaves from trees and shrubs, and testing the material for the presence of gold or other chemicals that often associate with gold, so-called pathfinder elements. Using...
