Rumble Resources Limited announced the latest round of RC drilling results from the Tonka-Navajoh Prospect at the Earaheedy Project, located 140km northeast of Wiluna, Western Australia. RC Drilling Results - Tonka-Navajoh Prospect: As part of the ongoing RC drilling program on the Earaheedy Project, the results for sixty-two (62) drill holes have been returned for the Tonka-Navajoh Prospect. The drilling involved further defining and extending the new Colorado Fault Zone on broad 200m section spacing. Several traverses scoped a number of earlier ground gravity targets between the main Tonka and Navajoh zones targeting new fault zones. Colorado Fault Zone (Tonka Prospect): The Colorado Fault Zone mineralisation has been extended by 100% to a strike in excess of 2.5km (east-west trending) and is open to the east. The latest intersections include: 25m @ 5.69% Zn + Pb from 215m (EHRC548) - including 12m @ 9.72% Zn + Pb from 216m and a higher grade zone returning 5m @ 14.14% Zn + Pb from 216m - 13m @ 4.64% Zn + Pb from 208 to EOH (EHRC544) - including 4m @ 11.46% Zn + Pb from 215m - plus a shallow intercept of 3m @ 5.17% Zn + Pb from 22m - 12m @ 2.55% Zn + Pb from 208m to EOH (EHRC547) - The hole ended in high-grade mineralisation ie. 2m @ 8.20% Zn + Pb from 218m to EOH - 11m @ 4.96% Zn+Pb from 138m (EHRC 506) - including 8m @ 5.95% Zn + Pb from 139m - 20m @2.54% Zn+Pb from 179m (EHRC 536) - including 5m @ 6.42% Zn + Pb from 179m - 5m @ 5.75% Zn + Pb from 196m (EHRC541) - 10m @ 3.43% Zn + Pb from 110m (EHRC516a). Rumble previously reported the discovery of the Colorado Fault Zone (ASX Announcement - 26th May 2022 - Multiple New High-Grade Zn-Pb Zones Defined at Earaheedy) outlining significant widths of mineralisation and high-grade internal zones. The new intercepts compliment previously reported high-grade intercepts on the Colorado Fault Zone which include: 73m @ 3.07% Zn + Pb (2.75% Zn, 0.32% Pb) from 106m (EHRC515) - Including 13m @ 5.38% Zn + Pb (4.87% Zn, 0.51% Pb) from 108m - with 6m @ 6.70% Zn + Pb (6.13% Zn, 0.57% Pb) from 108m - Including 19m @ 3.48% Zn + Pb (3.08% Zn, 0.35% Pb) from 132m - with 7m @ 4.50% Zn + Pb (4.03% Zn, 0.47% Pb) from 136m - Including 9m @ 3.56% Zn + Pb (3.18% Zn, 0.38% Pb) from 162m - with 2m @ 8.17% Zn + Pb (7.49% Zn, 0.68% Pb) from 162m
- 7m @ 10.71% Zn + Pb (8.52% Zn, 2.19% Pb) from 137m (EHRC518) - Including 3m @ 19.93% Zn + Pb from 138m - 22m @ 4.27% Zn + Pb from 110m (EHRC399) - Including 11m @ 5.82% Zn + Pb, from 121m - 20m @ 4.27% Zn + Pb from 112m (EHRC398) - Including 8m @ 6.75% Zn + Pb, from 117m. Of significance, on the PP Section, both EHRC544 and EHRC547 ended in mineralisation, with EHRC547 ending in high grade mineralisation - 2m @ 8.20% Zn + Pb. Further drilling will be planned to define the limits to this high grade mineralisation. Mineralisation is hosted primarily in a laterally extensive flat lying altered marl unit, which is associated with the Navajoh Unconformity. The Navajoh Unconformity Unit (multi-facies sediments that lie above the unconformity) that also hosts the Chinook mineralisation, appears to have thinned along the Colorado Fault Zone and in places is absent. In these areas, sphalerite dominant zones have developed within the Navajoh Dolomite which lies immediately below the unconformity. The Zn:Pb ratios are up to 10:1, which is significantly higher than the Chinook Zn-Pb-Ag-Cu mineralisation that lies some 9km to the northwest. Immediately to the north and potentially south of the main Colorado Fault Zone, sub-parallel strongly mineralised east-west structures support the potential for further new en-echelon high grade Zn-Pb zones to be delineated. Magazine Fault Zone (Tonka Prospect): The Magazine Fault Zone lies 600m south of the Colorado Fault Zone and is now interpreted to trend east-west. Recent drilling results and pending holes supported by pXRF analyses highlight potential strong Zn dominant mineralisation that remains open along strike. The easternmost hole (EHRC499) returned: 8m @ 4.00% Zn + Pb (3.71% Zn, 0.29% Pb) from 151m with narrow higher-grade zones of 1m @ 8.14% Zn + Pb from 156m and 1m @ 8.37% Zn + Pb from 162m. Navajoh Prospect: A single RC reconnaissance drillhole, 1.3km's southeast of the Navajoh Prospect, testing a gravity target has also returned strong Zn dominant mineralisation: 5m @ 2.74% Zn + Pb (2.66%Zn, 0.08% Pb) from 151m (EHRC487) - inc 1m @ 11.03% Zn + Pb (10.85% Zn, 0.18% Pb) from 153m. This new intercept has been interpreted as a new east-west mineralised fault zone which is open in all directions and remains to be drill tested. Tonka - Navajoh Structural Controls on Mineralisation: Emerging from the ongoing drill results and re-interpretation of the mineralisation trends with the aid of the recent preliminary results from the Airborne Gravity Gradiometry survey over the Tonka-Navajoh area is the inferred association of northeast trending and east-west mineralising structures. The latest interpretation suggests the east-west mineralised structures were the original fault zones associated with sets of extension/normal faults that lie primarily below the Navajoh Unconformity. The northeast structures were the likely link faults. Later tectonics (not necessarily associated with mineralisation) has subsequently overprinted the east-west fault zones (reverse faults). Next Steps at the Tonka-Navajoh Prospect: A further 38 RC and diamond holes from the recent campaign at Tonka- Navajoh, which were planned to infill and extend the Colorado and Magazine Fault Zones remain to be reported - Early interpretation of the preliminary Airborne Gravity Gradiometric (AGG) data has highlighted the Fault Zones as potentially a series of stacked high grade east-west mineralising structures within the extensive broad mineralised envelope (8km x 2km) at Tonka -Navajoh. Multiple new targets are being generated from this preliminary data and the Company is currently planning further RC/DDH drilling to test these areas in the near term. Sighter metallurgical test work to develop a preliminary flowsheet for the sulphide flotation concentrate is progressing well. An independent technical study to determine the optimum drill spacing for a maiden resource has commenced.