Galan Lithium Limited (ASX:GLN) ("Galan" or "the Company") is excited to share an update on its extended maiden diamond drilling program at the 100% owned Greenbushes South project in Western Australia. The final assay results have validated the Company's exploration model for targets, employing innovative geophysical methods to identify blind pegmatites at depth and the rock types associated with spodumene mineralisation.
While the drilling has not yet identified significant lithium mineralisation, these results will enable Galan to plan more focused and cost-effective future exploration.
About Fry’s Block
Prior to drilling, a ground-based geophysical campaign was executed. The target area, "Fry’s Block", was chosen due to its favourable land access, high lithium concentrations in soils, and outcropping pegmatite. Galan collaborated with NewGen Geo Pty Ltd to assess geophysics applications for detecting Li-bearing pegmatites. A trial program was designed over the Fry’s Block prospect, which provided easy access to outcropping pegmatites of varying thicknesses. Ground gravity and resistivity surveys were then applied to determine pegmatite locations beneath the lateritic cover. Following this, the Company announced its 2,500-metre drilling campaign.
Extension of the Maiden Drill Programme
Galan successfully completed its initial diamond drilling campaign at Fry’s Block. However, the drilling was extended into a second phase to further validate the exploration model and to leverage the logistics, mobilisation, and continued availability of the drilling team. The final assay data set for FDD008 pegmatite intersections has been thoroughly analysed by the Company.
Approximately 25% of the recovered rock drill core was classified as pegmatite, characterised by an abundance of minerals associated with the spodumene-bearing pegmatites at Greenbushes. Assay results indicate a strong fractionation trend, suggesting potential for Sn (tin) and W (tungsten) mineralisation in granite and, in some cases, other rare metal mineralisation.
Validation of Exploration Model
While the intersected pegmatite is not significantly enriched in lithium, caesium, and tantalum, it does indicate a trend towards enrichment in these elements. This suggests that the pegmatite may be related to the Greenbushes pegmatite.
Planning for the Next Drill Campaign
Following these results, Galan is in the process of developing additional targets for its next Greenbushes South drilling campaign. The Company has successfully engaged with primary stakeholders to secure strategic land access in the region, allowing for continued exploration closer to the Donnybrook-Bridgetown Shear Zone. Galan is also planning to collaborate with NewGen Geo Pty Ltd for another geophysical campaign and recalibration of previous drill core data, aiming to identify new host rocks and targets.