Rumble Resources (ASX: RTR) has uncovered a regional scale base metal system during drilling at its Braeside project in Western Australia’s east Pilbara.
The company recently completed a reverse circulation drilling campaign at Braeside where it tested 13 targets over 35km of strike.
Four mineralised alteration zones have been detected representing what Rumble calls a “regional scale” system with zinc, lead, copper and silver mineralisation.
According to Rumble, the drill results reveal the project’s “camp-scale” potential to host multiple deposit types.
Drilling at the Lightning Ridge eastern zone returned 4m at 5.42% lead, 0.45% zinc and 19.7 grams per tonne silver from 53, and 4m at 6.35% lead and 14.7g/t silver from 35m.
Meanwhile, drilling at the Boom Boom Mancini – Gossan East – Barker Well central zone revealed 15m of strike and intersections included 6m at 6.16% lead from 46m, and 3m at 9.16 lead and 0.43% zinc from 34m.
The Devon Cut – Mt Brockman 2 central zone unearthed 2m at 3.3% zinc, 0.52% lead and 0.7% copper from 16m, while the Barium Ridge – Sugar Ramos western zone hosted 14km of strike and produced notable assays of 26m at 3.84% barium oxide, 0.18% lead, and 373 parts per million rubidium from 4m.
“The discovery of the broad zones of barium-related alteration with elevated copper and gold at Barium Ridge and Sugar Ramos has advanced the porphyry related polymetallic vein deposit model,” Rumble technical director Brett Keillor said.
“More importantly, regional lateral metal zonation has been established, which highlights the porphyry to epithermal deposit type continuum.”
“Braeside now has potential for copper-gold disseminated/sheet vein type mineralisation associated with the peripheral zone to a porphyritic intrusion along with polymetallic vein/breccia and epithermal-type deposits,” Mr Keillor explained.
These latest results arose from Rumble’s second reverse circulation drilling program at Braeside and totalled 61-holes for 5,128m.
According to Rumble, most of the targets had not been previously drilled and were relatively shallow holes.
Mr Keillor said the next exploration stage will test the company’s hypothesis that a near complete porphyry to epithermal mineralised system exists across the project.
Drilling will also be undertaken at new target zones, including those CSIRO has generated.
In early morning trade, Rumble’s share price was up 3.77% at $0.055.