Rumble Resources Limited Announces Wardawarra Drilling Commenced on Battery Metals Targets
analysis) and re-assaying of air core drilling pulps, a small aircore (AC) regolith drilling programme was completed to
ascertain the potential for nickel sulphide mineralisation associated with the Yinga Ultramafic Sequence. Re. sults from re-assaying of pulps (wet lab analysis) include: 20m @ 0.54% Ni from 10m (4m Comp) - CRAC037 - 8m @ 0.69% Ni, 0.13% Co from 6m (4m Comp) - CRAC045 - 8m @ 0.80% Ni from 26m (4m Comp) - CRAC046Rumble completed fifty-eight (58) shallow air core drill holes for 1825 m, and six (6) slimline RC drill holes north and west of the Cranes Au Prospect. Results (wet lab analysis) from this drilling include: 9m @ 0.67% Ni, 0.11% Co from 17m - WWAC024 - 7m @ 0.64% Ni from 15m (includes Cu to 720ppm) - WWAC066 - 9m @ 0.50% Ni, 0.11% Co from 11m (Pt + Pb to 165ppb) - WWRC001 - 7m @ 0.58% Ni from 23m - WWRC004 - pXRF analysis of RC holes previously drilled for gold (returned elevated Ni values including: - CRRC004 - 13m @ 0.46% Ni from 14m - CRRC005 - 13m @ 0.57% Ni from 16m. The orientation litho-geochemical exploration completed at Cranes has defined ultramafic litho-types highly favourable for nickel sulphide mineralisation. Highlights include: Elevated nickel and cobalt in the oxide zone - typical oxide (limonite) type nickel laterite mineralisation. Deeper RC drilling has highlighted high MgO ultramafic rocks below the Mg discontinuity (Mg leached in the limonite zone above the saprolite zone). MgO is > 32%. Ultramafic MgO rich litho-types include serpentinised peridotite and dunite. Elevated Pt + Pd (up to 165ppb) and Cu (up to 720ppm) in the upper oxide limonite zone. The elevated nickel and cobalt develop directly above a high order magnetic response. Lithium-Tantalum-Niobium Targets - E20/967 - Tantalus Pegmatite: The Tantalus Pegmatite is a large weathered shallow east dipping unit with a strike of 600m and is up to 60m wide. Previous exploration focused on alluvial tantalum, niobium and tin. No historic assaying for Li had been completed. Rumble completed a small grab sampling campaign (six grab samples) to ascertain lithium potential. Results include: Lithium - Li2O to 2%
- Rubidium - Rb2O to 1.02% - Caesium - Cs2O to 0.2%. Eastern Gneiss Pegmatite Swarm: The Wardawarra Greenstone Belt is in contact with gneissic granites, ortho and para-amphibolites on the eastern margin. A large pegmatite swarm intrudes into the "Eastern Gneiss" margin and into the parts of the Wardawarra Greenstone Belt. Reconnaissance exploration has mapped pegmatite outcrop occurrences over some 12km's of strike. The pegmatites trend generally northwest within a north-northeast trending corridor. Initial grab sampling (sixty grab samples)
identified microcline dominant sub-vertical multiple pegmatites up to 20m in width with amazonite zones. The pegmatites returned a strong background in rubidium, with 85% of grab samples returning a 0.5% Rb2O average,
along with elevated Cs, Ta and Nb. One pegmatite cluster returned strong lithium values. Pegmatite geochemistry includes: Lithium - Li2O to 5.32% - Rubidium - Rb2O to 3.35% (average 5000ppm - Amazonite/Microcline) - Caesium - Cs2O to 0.84%. Gold Targets - E20/967: The Western Queen Shear Zone (WQSZ) trends north-northeast within the Wardawarra Greenstone Belt and is associated with the Western Queen Gold Project. The WQSZ has been tested over a strike of 2.7km within
M59/208 and is completely open to the north and south outside of the mining lease and into the adjacent 100% Rumble
owned Exploration Licence (E20/967). Recent interpretation of the strike extension of the WQSZ to the south of the Western Queen Gold Project has highlighted a small group of poorly drill tested gold workings (Trixie) that are part of the same gold mineralising system. At Trixie, historic shallow drilling returned 4m @ 1.63 g/t Au from 21m, and 2m @ 1.64 g/t Au from 5m. No follow up drilling has
been completed. See ASX Announcement Wardawarra Project Significant Ni, Cu, Co, Au, Ta, Nb, Sn and Li
10/11/2021. RC and Aircore Resonance Drill Program Commenced - E20/967: Approximately 7000m of AC and slimline RC drilling has been planned to test the multi-commodity targets with the Warrawarda Project. The use of pXRF analysis allows for immediate follow up by AC drilling, with subsequent RC drilling to be planned if results support further testing. The focus will largely be on: Targeting the large Yinga Ultramafic Sequence to understand the sulphide nickel, copper, cobalt and PGE litho-geochemistry potential - Targeting the significant pegmatite swarms to understand lithium, tantalum, and niobium potential.