Lincoln Minerals Refines Minbrie Strategy after Latest Large-Scale Assay Results
Lincoln Minerals (ASX: LML) has significantly refined its exploration strategy for the Minbrie prospect on the Eyre Peninsula in South Australia after new assay results confirmed an extensive mineralised system.
The company successfully re-assayed 172 previously untested historical core samples from seven holes drilled in 2011 across the Northern Minbrie area to confirm multiple sulphide-rich zones across more than 7 kilometres of mineralised strike.
The results support the current geological model for Minbrie and enhance Lincoln’s confidence in the continuity of mineralisation.
Structural Features
The results have highlighted the importance of structural features such as shear zones and breccias, which appear to control the distribution of high-grade mineralisation.
Lincoln is now utilising that information to pinpoint future drilling of untested extensions of the mineralised system, including targeting both oxide/supergene and fresh sulphide zones.
The results have already unveiled multiple high-priority drill targets across the northern area ahead of a maiden drill program in Q4 CY25.
System Remains Open
Chief executive officer Jonathon Trewartha said the multi-metal sulphide system remains open in multiple directions.
“By re-assaying the historic core, we’ve unlocked significant copper, zinc, lead, and silver potential at minimal cost and in rapid time.”
“This positions Minbrie as a potential large-scale multi- metal discovery in an underexplored district, giving us a clear runway to target thicker, higher-grade zones as we move into our high-impact drilling program next quarter.”
Notable new results from the updated assaying include 0.3 metres at 0.18% copper, 2% zinc, and 4.6 grams per tonne silver and 0.7m at 3.1% zinc, and 0.46% lead.
Footwall Sequence
Lincoln’s geology team has also identified the footwall sequence at Minbrie as a key target for base metal mineralisation.
Mr Trewartha said the underexplored footwall contains highly reactive lithologies prospective for base and precious metal deposits, as well as key structural fluid pathways.
Analysis also found that approximately 85% of the historical holes did not reach the target depth and, of those that did, only three were ever assayed for base metals.