GreenTech Metals has released the results of a soil geochemistry review and outcrop mapping that was completed at its West Pilbara Lithium Projects, Ruth Well and Osborne Joint Venture (JV).
The Osborne JV tenement E47/3719 is a joint venture held with Artemis Resources. It sits to the east of the company’s Ruth Well Project.
The Northern LCT pegmatite sits within the company’s Ruth Well Project tenements and extends eastward into the Osborne JV tenements where previous rock chip samples have returned assay results of up to 1.8 per cent lithium oxide (Li₂O).
Recent results from these latest reconnaissance rock chip samples have also returned lithium grades of up to 3.6 per cent Li₂O in the Southern LCT trend.
A review of historic soil geochemical data and the results to date of geological mapping has confirmed the Northern and Southern LCT pegmatite trends whilst significantly expanding the extent of lithium mineralisation in the project areas.
Geological mapping completed to date has identified and confirmed the presence of significant pegmatite swarms in the Northern and Southern trends. These swarms are coincident with significant lithium soil anomalies. The pegmatite swarms contain pegmatites and related dyke-like intrusions (granodiorite, quartzite and quartz) typical of LCT pegmatite systems.
The pegmatite swarms are also coincident with lithium soil geochemical anomalies identified from review of historic datasets and are open where the trends extend under cover, for example the eastern extension of the Northern Trend.
Mapping and rock chip sampling is continuing in both the Ruth Well and Osborne project areas where it is partially completed.
Rock chip samples taken have been dispatched to the ALS Global laboratory in Perth for analysis. The results for these samples will be reported when the analytical results are received.
Using the information gained from the discovery of the two lithium pegmatite trends, the company is continuing to research and review historic datasets with a view to potentially identifying new lithium pegmatite trends, and extensions to the known trends, within the broader Ruth Well and Osborne Project areas.
GreenTech Metals Executive Director, Thomas Reddicliffe, said that the company’s technical team is continuing to systematically unlock the potential of the West Pilbara lithium footprint.
“This latest work has confirmed the Northern and Southern LCT pegmatite trends, whilst also demonstrating the strong likelihood for additional discoveries to be hosted within the respective project area,” Mr Reddicliffe said.
“Extensive historic soil sampling complements the rock chip sampling completed to date which has yielded consistently high lithium grades and gives us significant confidence as we move quickly towards our maiden drilling programme.
“GreenTech continues to solidify its position as a significant player in the rapidly emerging West Pilbara lithium province and we look forward to providing further positive updates on our progress over the coming weeks.”
Featured image: A pegmatite outcrop at the ‘Southern Trend’. Image credit: GreenTech Metals.
