Rumble Resources Ltd


Rumble Resources Ltd : - New Shallow High-Grade Cobalt-Platinum Discovery and Significant Copper-Gold Mineralisation Defined

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07/12/2019 | 04:19 pm

Rumble Resources Ltd (ASX: RTR) ('Rumble' or 'the Company') is pleased to announce that reconnaissance air core and shallow RC drilling has been completed at the Munarra Gully Project, with final assay results returned.

The Munarra Gully Project is located some 50km NNE of the town of Cue within the Murchison Goldfields of Western Australia.

Within the White Rose Prospect, the shallow slimline RC drilling has extended previously defined copper-gold mineralisation by Rumble resulting in highlighting the presence of a differentiated mafic sill with significant basal mineralisation over a strike of 350m and up to 150m wide. The preservation of the highly prospective basal zone is a key component in the search for high-grade ortho-magmatic copper-gold mineralisation. The prospect is considered a feeder zone associated with a larger mafic sill complex and enhances the potential for significant mineralisation down plunge.

Regionally, ten air core drilling reconnaissance traverses were completed over a strike of 9km with the principle aim of testing high order Cu - Au in soil anomalies and geophysical targets under shallow cover. A new zone of shallow lateral high grade cobalt with platinum anomalism has been discovered under cover 3km to the southwest of the White Rose Prospect. The cobalt - platinum mineralisation is completely open with up to 10km strike potential.

Rumble has now acquired two exploration licence applications (100% ownership) covering the inferred northern strike extension of the copper-gold mineralised corridor that extends over a known strike of 9km. The additional tenure and inferred zone has increased the strike of the prospective Cu-Au corridor to 25km.

Air Core and Slimline RC Drilling Programme

A total of 258 first pass reconnaissance air core drill holes were completed for 6300m over M51/122 (101 holes for 2125m) and E51/1677 (157 holes for 4175m) from April to June 2019. Drilling was angled and shallow (average depth of 22m) with composite sampling and single metre repeats and check sampling. A total of 20 slimline RC drill holes were completed for 1536m over M51/122 (18 holes for 1401m) and E51/1677 (2 holes for 135m) during April to June 2019. Drilling was angled with one metre sampling.

Cobalt Prospect - New Zone of High-Grade Co-Pt Discovered (E51/1677)

Two additional traverses (50m spaced either side of the first traverse) has confirmed continuity of the highgrade cobalt with platinum mineralisation. The lateral mineralisation is under shallow cover (5m). The host geology is a medium grain pyroxenitic intrusion.

High-Grade Cobalt Prospect - Mineralisation Potential and Next Stages

The high-grade cobalt mineralisation has been defined by a single air core drill traverse with close spaced (50m) follow up traverses that has demonstrated the high-grade cobalt mineralisation continuity. The prospect is part of a series of variable ultramafic units, some which have been identified as pyroxenites.

The Co - Pt mineralisation is completely open along strike - There is over 10km's of strike within the ultramafic units that occur along a strongly magnetic trend.

The regional air core drilling by Rumble has only tested a very small percentage of this prospective ultramafic package.

High potential for high-grade shallow laterite cobalt deposits

Next Steps

Rumble will fast-track systematic shallow air core traverses along strike to scope out any high-grade lateritic cobalt mineralisation, with up to 10km of strike potential

White Rose Prospect (M51/122) Images 4,5,6 and 7

A differentiated mafic sill has been delineated with the latest round of drilling. Previous exploration by Rumble had defined a zone of significant Cu - Au mineralisation associated with a fine grain noritic intrusive with significant intercepts including 22m @ 1.00% Cu from 29m coincident with 19m @ 2.19 g/t Au from 33m (WRRC001) (refer ASX announcement 30 August 2018). The current drilling has extended the Cu - Au mineralisation along strike and defined the width of the sill. The sill is up to 150m in width dipping 75-degree to the north and trending east-west. The sill is transgressive, cutting across the trend of the older Archaean greenstones (trend northeast with 70-degree northwest dip). The Cu - Au mineralisation is interpreted to be at the base of the mafic portion of the sill. Footwall to the sill are talc chlorite schists and intercalated pyroxenitic ultramafic rocks with strongly elevated copper and an increase in PGM's. The footwall rocks may represent a lower ultramafic stage to the sill.

About Rumble Resources Ltd

Rumble Resources Ltd is an Australian based exploration company, officially admitted to the ASX on the 1st July 2011. Rumble was established with the aim of adding significant value to its current mineral exploration assets and will continue to look at mineral acquisition opportunities both in Australia and abroad.


Tel: +61 8 6555 3980


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