Daisy Milano Mine - WA (Silver Lake 100%)
The Daisy Milano gold deposit is hosted by a dilational zone within a north-south trending shear zone. The mineralisation occurs as a swarm of thin quartz veins in two major lodes; typically less than two metres in width, dipping at about 80° east, plunging to the south and lengthening in strike extent at depth.
The mine is accessed via a decline from the surface. The decline is well advanced ahead of ore development and stoping activities and currently extends down to a vertical depth of approximately 460 metres. The decline is planned to be excavated down to a vertical depth of 520 metres, which is the current drilled extent of the lode.
Figure 1Long section view of underground drilling programme conducted to test down dip and along strike continuity of 20 and 21 levels at Daisy MilanoClick image to enlarge
The mineralised lodes observed underground have many similarities to lode structures of Kalgoorlie's Golden Mile (located to the northwest), in terms of the nature of shearing and veining, alteration assemblage and gold tenor.
Daisy Milano commenced production under Silver Lake's ownership in early December 2007, and within a week an underground diamond drill rig was in operation to infill drill the mine area between the 19 and 21 levels of the mine (Figure 1). The results from this programme provided confidence in the continuity of the mineralisation and also highlighted the existence of parallel lodes in the orebody.
Ore from the Daisy Milano mine will be processed through Silver Lakes' Lakewood Gold Processing Facility located 5 km south east of Kalgoorlie. Metallurgical processing is conventional and relatively straightforward. The ore is of modest hardness and approximately 70% of gold content is recovered in a gravity circuit prior to cyanide leaching leading to an overall recovery averaging 98%.
Resources
Measured Resources | Indicated Resources | Inferred Resources | Total Resources | |||||||||
| Deposit | Ore t '000s | Grade g/t Au | Total Oz Au '000s | Ore t '000s | Grade g/t Au | Total Oz Au '000s | Ore t '000s | Grade g/t Au | Total Oz Au '000s | Ore t '000s | Grade g/t Au | Total Oz Au '000s |
| Daisy Milano | 93.6 | 37.9 | 114.1 | 65.4 | 20.8 | 43.7 | 92.0 | 30.8 | 91.2 | 251.0 | 30.8 | 249.0 |
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