Rumble Resources Ltd (ASX:RTR, OTC:RTRFF) has intersected a potential 9-kilometre-by-3-kilometre zinc-lead deposit during reverse circulation (RC) drilling at the Earaheedy Project’s Sweetwater Trend, adding to the appeal of the emerging world-class base metal system in Western Australia.
The newly-discovered deposit, named Mato Prospect, was outlined from the first five drill holes about 7.5 kilometres west of the Chinook Deposit.
Significantly, geological logging of the drill holes showed that the Mato Prospect could host large-scale unconformity-related zinc-lead sulphide deposits similar to those already established at the Chinook, Tonka and Navajoh prospects.
Based on further interpretation of the Airborne Gravity Gradiometry Survey completed in 2022, some of the new gravity targets at the Mato Prospect could potentially represent high-grade feeders.
Rumble has submitted a heritage survey request to conduct further drilling to test the area northeast of the current drill lines.
Sulphide-bearing samples. On the right are samples showing coarse sphalerite, galena, and pyrite.
First diamond hole
Rumble has also recently completed a government co-funded diamond hole at Chinook West, the company’s first deep diamond drilling within the Earaheedy Project.
Diamond hole EHD034 intersected further unconformity-related zinc-lead mineralisation based on portable XRF and visual inspection of potential high-grade zones of sphalerite, galena and pyrite, hosted in the Navajoh Unconformity Unit and the top of the underlying Sweetwaters Well Dolomite.
Samples will be despatched for laboratory analysis.
Core samples from EHD034 showing coarse-grained sphalerite, pyrite and galena.
Boosting landbank
The exploration company has submitted three new applications for tenements with the potential to host high-grade Mississippi Valley Type Deposits.
Applications for prospective exploration licences ELA69/4124, ELA69/4149 and ELA69/4165 will increase Earaheedy’s tenure by 170% to 1,154 square kilometres.
Initial geological field reconnaissance work within the new tenement areas has been completed and has confirmed Rumble’s interpretation that the basal Earaheedy Basin contact is further south than previously interpreted.
Once the tenure is granted, several high-priority areas will be tested with geochemical sampling and field mapping.
Earaheedy Project map showing the location of Chinook and Tonka-Navajoh deposits, new tenure in application and Mato Prospect.