THE GEOLOGICAL POSITION OF UNIQUE GOLD NUGGETS DISCOVERED IN NEW SOUTH WALES, AUSTRALIA, AND THE AMUR REGION, RUSSIA
DOI:10.24411/0869-5997-2020-10011
Keywords:
gold nuggets, deposit, placer, gold-quartz formation.Abstract
A comparative description of the geological structure typical of discovery areas of a unique nugget known as the Holterman Plate (New South Wales, Australia) and a nest of large nuggets comparable in weight to it (Amur region, Russia) is given. It was shown that in both cases gold-quartz mineralization was the primary nugget source. The Holterman Plate nugget is formed by destruction of the upper part of the major Hill End gold deposit, which is represented by a series of stratiform quartz veins. A nest consisting of 665 nuggets with a total weight of 79 kg was found when mining the Gar-2 placer of the Yasnensky ore-placer cluster of the Amur province. In the placer area, gold-quartz occurrences predominate. Gold-quartz type gold deposits are forecasted to be identified there.