Red Mountain Mining Limited (ASX:RMX) is pleased to provide an update for its Mt Mansbridge Project located in the Eastern Kimberley region of Western Australia.
Prioritised assay results from drilling undertaken at the Solo Prospect have recently been received from the laboratory with Heavy Rare Earth Element enrichment confirmed from drilling at the Solo Prospect.
The average ratio of HREO to TREO for the drilling at the Solo Prospect is 66.62%. Drilling has confirmed the presence of rare earths and in particular the large distribution of Yttrium and the dominance of heavy rare earth elements dysprosium (5.65%) and terbium (0.97%) which suggests the mineralisation is xenotime.
Petrological analysis is currently being undertaken by Diamantina Laboratories with results expected in the coming weeks.
The following REO intercept (5m 51-56m) from drillhole MMRC002 was returned from the Solo Prospect:
- 0.316% Total Rare Earth Oxide (TREO)
- 0.246% Heavy Rare Earth Oxide (HREO)
- 0.070% Light Rare Earth Oxide (LREO)
- 0.170% Yttrium Oxide (Y2O3)
- 0.019% Dysprosium Oxide (Dy2O3)
The company successfully completed four of the planned holes at the project before the drill rig and personnel demobilised from site due to the onset of the wet season within the Kimberley making access untenable.
With substantial access tracks now established at the Mt Mansbridge project and heritage clearance achieved, the Company is planning on resuming the drill program once the site is accessible again in early 2022 and anticipates an efficient completion of the program.
Mineralisation was associated with a silica altered structure, hosted within a broader package of quartz and quartz- mica greywackes and occasional finer grained pelites. Remaining assays from the remainder of hole MMRC002 and MMRC001 and 003 from the prospect will be returned and reported upon in February 2022.
Déjà vu Prospect (Ni-Cu-Co-PGE’s)
The Déjà vu Prospect was identified and drilled by CRAE between 1991 and 1993. The prospect was originally targeted for diamond bearing kimberlites, however it encountered serpentinised peridotite. Sporadic sampling and assaying through the ultramafic intrusive unit returned several encouraging cobalt assay results between 70-100m including 0.34%, 0.32% and 0.22% Co.
Litho-geochemical studies recently undertaken by the Company’s geochemical and geological consultants highlighted the cobalt as primarily magmatic related (i.e. not weathering enrichment) and also that the anomalous cobalt values cannot be explained by the observed silicate minerals within the peridotite only.
Hole MMRC004 was drilled to a depth of 75m before the drill rig experienced mechanical issues. These issues were unable to be resolved prior to the rig’s demobilization, which was necessary to avoid the rig being stranded over the wet season.
Samples from 59-75m were prioritized for rushed assay at the laboratory. Assay results from this zone reported a consistent zone of Cobalt: 16m @ 112.8ppm Co (59-75m). Mg and Ni values were also observed to be gradually increasing down hole alluding to a zone of increased fertility deeper in the intrusive system. Unfortunately, the hole finished short of the target zone and requires further drilling.
The hole was originally designed to ‘twin’ the existing CRAE drill hole to provide further geological information and a comprehensive set of samples around the existing cobalt anomaly. Further deeper RC drilling and an additional hole to the north and south are planned for early 2022.
For further information please visit: https://www.redmountainmining.com.au/