The Success open-pit gold mine is part of Northern Star Resources’ Bronzewing gold project. Bronzewing is located within the Yandal greenstone belt, which is about 250 kilometres long and 40km wide. The belt comprises a poorly exposed greenstone terrain composed of metamorphosed volcanic, intrusive and sedimentary rocks. The province is characterised by Late Cretaceous to Cainozoic deep weathering and extensive alluvial and colluvial cover.
Production at Bronzewing is currently sourced sequentially from seven open-pits in the Bronzewing tenements, including the Success mine.
By June 2010 open-pit operations at the Success mine were well established. At June 30, 2010, the Success mine had probable reserves of 128,000 tonnes grading 2.700 grams per tonne for 11,111 ounces of gold, and an indicated resource of 120,000t grading 3.000g/t for 11,574oz of gold.
The Bronzewing gold deposit was discovered in 1992 by Great Central Mines who developed the Project at an initial cost of US$59 million with production commencing in 1994. In April 2007, subsequent owner View Resources started a combined open-pit and underground operation that included mining at the Central/Discovery, Cockburn, Success and Venus deposits, but the company was forced to close the project in February 2008 due to underperformance at the underground operations, inadequate working capital and tight operating margins. Navigator Resources completed its acquisition of the Bronzewing Gold Project in September 2009, purchasing the mine from the administrators of View Resources. Navigator began production at Bronzewing in April 2010. The project was expected to reach a full production rate of 100,000oz of gold per year, for an open-pit mine life of five years.