THE DRILL SERGEANT: Breaker Resources (ASX: BRB) announced recent drilling had continued to extend the 1.1-million-ounce Bombora gold deposit at the company’s Lake Roe project, east of Kalgoorlie in Western Australia.
Breaker Resources said the latest results also continue to enhance the deposit’s open pit potential, which is the subject of an ongoing prefeasibility study (PFS).
The company competed drilling designed to identify the outer limit of open pit mining in preparation for finalising the open pit PFS, or to reassess the Resource classification in several areas.
Deeper drilling, aimed at further assessing the scope for underground mining, encountered a best intersection of 6.82 metres at 36.87 grams per tonne gold (BBRD1135), further enhancing the potential at depth.
Drill hole BBRD1135 also returned an intercept of 14m at 18.86 g/t gold from the Tura lode, which Breaker claimed as being the highest gram-metre result recorded from the lode to date.
“Preparation for the revised resource model was taking longer than anticipated due to the scale and geometry of the deposit and the volume of data,” Breaker Resources executive chairman Tom Sanders said in the company’s announcement to the Australian Securities Exchange.
“It is vital that we get the modelling and geological domaining right to build a solid technical foundation in preparation for the open pit PFS.
“It is well worth taking a little more time to get this right and ensure we maximise the opportunity that we have.
“We also need to build flexibility into the open pit PFS, such as the use of variable lower cut-off grades, to gauge the effect on mineable ounces.
And we need to do this for three lode orientations and zones of stockwork mineralisation extending over three kilometres.
“The pause in the resource drilling will give us time to reset and plan the next phase, although this pause is likely to be short-lived as the Bombora deposit is still open in all dimensions.
“In the meantime, ongoing exploration with an aircore and reverse circulation (RC) drill rig is planned to open up new work areas and further expand the discovery footprint.”