The Lake Roe Project is located 100km east of Kalgoorlie between two large gold deposits, the 3.5Moz Carosue Dam mine and the 0.9Moz Karonie gold deposit, located 60km north and 40km south of Lake Roe respectively. The Lake Roe project comprises five granted tenements and one application with an overall area of ~550sqkm.
Breaker identified a significant new 6km-long gold system at Lake Roe in August 2015 using wide-spaced aircore drilling in an area of thin (5m-10m) transported cover. Three subsequent phases of RC drilling commencing in March 2016 resulted in three separate gold discoveries that now constitute one continuous 2.2km-long discovery.
The Company has completed ~79,000m of drilling at Lake Roe, most of which has been reconnaissance in nature. Closer spaced resource drilling commenced in December 2016 and is currently underway with three drill rigs.
The early results indicate compelling mining potential (open pit and underground). Recent results include:
The 2.2km-long Bombora discovery is open along strike and depth and forms part of a 6km-long gold system that remains open along strike.
Gold mineralisation at Lake Roe typically occurs as sulphide-impregnated “lode” and stockwork mineralisation in the upper, iron-rich part of a thick fractionated dolerite, the Bombora Dolerite. This style of mineralisation is the dominant mineralisation style in Western Australia and is similar to that at several major gold deposits in WA including the Golden Mile, St Ives, Paddington and White Foil. These deposits typically have good depth potential.
The sulphide lodes represent sulphide-impregnated fault zones (fluid pathways) with up to 10% pyrrhotite and pyrite accompanied by silica, albite, biotite and carbonate alteration and (tensional) quartz-pyrite veinlets that can form stockwork-style mineralisation. The intersection of the mineralised faults and the iron-rich part of the dolerite defines the orientation of the plunging lode and stockwork mineralisation.
The Bombora discovery is likely to grow. Many good quality gold intersections situated along strike from the Bombora discovery are highly significant as they are “floating in space” due to the wide-spaced, reconnaissance nature of the drilling. Closer spaced drilling near these drill intersections is likely to find more gold.
Long section analysis highlights the untested depth potential and indicates the presence of several plunging lodes, the vertical extent of which is currently limited by the shallow nature of the drilling to date.