St George Mining Limited (ASX: SGQ) has reported further encouraging lithium exploration results at its Mt Alexander Project in Western Australia.
“Our understanding of the lithium prospectivity continues to grow at Mt Alexander with recent drill results confirming high-grade and anomalous lithium across a wide area,” St George Mining’s executive chairman, John Prineas, commented.
“We have only just begun to realize the wider lithium potential at Mt Alexander with the latest drilling confirming the presence of major structures that can produce wide extensional openings for thick fractionated pegmatites to intrude.”
Highlights from the programme included a +120m thick pegmatite at Manta which supports the theory of wider lithium potential and an extensive mineralized pegmatite field at Jailbreak, open along strike and at depth.
At Manta, assays for MAD213 (drilled on 75% St George-owned E29/638) intersected a wide zone with multiple pegmatites – including a continuous 120.8m interval. This may be a positive sign for a zoned lithium-bearing system.
There were also major structures potentially associated with the thick flat-lying pegmatites hosted in granite, supporting the potential for the pegmatites to extend into a more favourable host in the greenstone belt, adjacent and intruded by the granite source.
The pegmatite at Manta is modelled by seismic data as a 1,000m diameter circular feature, with additional geophysics and drilling planned to test the wider potential for lithium bearing pegmatites around it.
At Jailbreak, further assay results from the recent 2023 drilling programme confirmed multiple lithium-bearing pegmatites with a peak value of 1.28% Li2O. Lithium-bearing pegmatites now identified by drilling across a 2km strike of the pegmatite corridor with a further 13km-long part of the corridor that hosts an extensive network of mapped pegmatites has yet to be drill tested.
Drilling at Jailbreak has intersected multiple pegmatites that have potential to become thicker at depth, similar to results reported by other explorers in the region.
For further information, please visit: www.stgm.com.au
