The Lindsay’s field is located 65km north north-east of Kalgoorlie, Western Australia. It is one of four projects comprising the KalNorth Gold Field and the first that KGM has brought into production.
First mining commenced from the Parrot Feathers open pit mine in January 2013. Parrot Feathers was expected to be in operation for approximately 18 months and to deliver a total of 440,000 tonnes (t) of ore for around 40,000 ounces (oz) of gold in that time. However, a rapidly deteriorating gold price throughout the early part of 2013 resulted in several adjustments to the mine plans and the subsequent ceasing of mining activities at Lindsay’s for economic reasons. The potential remains to re-start production under more favourable gold pricing conditions and also to build on the remaining resources and reserves through future underground mining operations.
The Lindsay’s field comprises three main north-west trending structures that run through a folded sequence of dolerite, basalt and metasediments – the Eastern Structure, the Central Structure and the Western Structure. These structures extend deep, toward an intrusive feature located to the west. The Parrot Feathers open pit, the largest of six pits, is located on the Eastern Structure. Open pit mining from Parrot Feathers targeted high-grade gold mineralisation at depths less than 80m, with the potential for underground mining still an option being considered for the future.
Significant potential also exists for the continuity of mineralisation along strike. Interpretation of the regional aeromagnetics and RAB drilling show north-west extensions of the dolerite host rock, but much of this has yet to be tested further. The area remains prospective for further discoveries.