Rumble Resources Limited (ASX: RTR) has confirmed the continuity of width and higher-grade Zn–Pb with Ag at its Chinook and Magazine prospects within the Earaheedy Project in Western Australia.
Results and latest interpretation from confirmation RC drilling on the Magazine and Chinook Prospects encountered higher-grade Zn-Pb with Ag up to 200m in width, further highlighting the potential for multiple large-scale (large tonnage) flat lying sulphide deposits that would be amenable to open cut mining.
The Earaheedy project is located approximately 110km north of Wiluna, in Western Australia. Rumble owns 75% of E69/3464 and Zenith Minerals Ltd (ASX: ZNC) owns 25%. Rumble also has a single contiguous exploration license application, ELA69/3787 that is held 100%.
The recent nine-hole RC drilling programme was designed to confirm the new discoveries at Chinook and Magazine announced in late January 2020.
At Magazine, RC drill-holes were completed including a confirmation hole close to the approximate location of historic RC drill-hole TRC47. Highlights from the Magazine holes included
- 18m @ 2.5% Zn, 0.87% Pb, (3.37% Zn + Pb), 2.64 g/t Ag from 88m: including 12m @ 3.3% Zn, 1.18% Pb, (4.48% Zn + Pb), and 2.91 g/t Ag from 88m including 4m @ 5.49% Zn, 1.87% Pb, (7.36% Zn + Pb), 4.43 g/t Ag from 88m mineralisation downhole width (95% of true width)
Historic RC hole TRC47 reported:
- 7m @ 3.6% Zn, 1.25% Pb, (4.85% Zn + Pb), 4.6 g/t Ag from 103m Including 2m @ 8.2% Zn, 2.8% Pb, (11% Zn + Pb), 6 g/t Ag from 103m
At Chinook, a single section comprising of four drill-holes infilled on the discovery intersection made by Rumble in January 2020.
Drilling at Chinook has confirmed continuity of width and grade at Chinook. Current hole EHRC022 returned sulphide mineralisation of:
- 12m @ 2.41% Zn, 0.98% Pb (3.39% Zn + Pb), 4 g/t Ag from 84m; inc 4m @ 3.9% Zn, 1.54% Pb (5.44% Zn + Pb) 6.5 g/t Ag from 85m
Mineralisation lies within a broad zone of 18m @ 2.44% Zn + Pb from 83m Mineralisation true width.
Discovery hole EHRC019 returned:
- 11m @ 3.35% Zn, 0.78% Pb, (4.13% Zn + Pb), 12.78 g/t Ag from 61m within a broader zone of 22m @ 2.04% Zn, 0.48% Pb, (2.52% Zn + Pb) from 53m
The mineralisation is hosted in sandstone above the unconformity and comprises of sphalerite, galena and pyrite (sulphide zone). The oxide/sulphide interface lies between 55 to 60m vertical depth. The host sandstone comprises of variable coarse sandstone to grit (quartz rich) with interbedded finer siltstone and marl.
Rumble’s Zn-Pb Exploration Target at the Earaheedy Project is between 40 to 100 million tonnes at a grade ranging between 3.5% Zn-Pb to 4.5% Zn-Pb.
The Exploration Target is at a shallow depth (80m), and over 40kms of prospective strike (completely open) has been defined within the Earaheedy Project.