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Highlights
Lincoln Minerals (ASX:LML) identifies new copper and base metals zones in Eyre Peninsula
Geological modelling nears completion with drilling expected in second half of the year
Exploration leverages historical data combined with advanced geoscientific techniques
The resource sector contributed to positive movement on the ASX 200, as exploration activity continued across critical mineral projects. Lincoln Minerals (ASX:LML), part of the broader materials index, has reported significant progress at its wholly owned Minbrie Copper-Base Metals Project located in South Australia’s Eyre Peninsula.
The company is currently finalising geological modelling for the region, with drill planning aligned to updated insights from both historical and newly acquired data. This comes amid broader interest in copper and base metals as part of the global transition toward energy infrastructure and manufacturing technologies.
Exploration Refocused on Northern Sulphide Corridor
Lincoln has defined a seven-kilometre corridor of sulphide-bearing stratigraphy within the Minbrie project area, dividing it into Northern, Central, and Southern sections. The Northern section has become the focal point, based on indications of extensive sulphide mineralisation observed during recent fieldwork.
Recent activities involved relogging core samples and examining historical drilling records. A substantial number of portable x-ray fluorescence (pXRF) readings and core intervals have also been analysed to determine the composition and structural controls of mineralised zones. The work is part of a broader program to validate past drilling and re-establish key geological markers within the project.
Historical Drilling and Re-assaying Strengthen Geological Model
Lincoln is re-assaying dozens of historical drillholes to confirm legacy data and enhance interpretation of the mineralised system. Drillholes BUDD192 and BURCD030 have provided significant stratigraphic and lithological correlation, reinforcing confidence in current structural models.
Bornite mineralisation has been confirmed close to drillhole BURCD030, supported by readings from pXRF analysis. These observations are contributing to the refinement of the three-dimensional geological model that is nearing finalisation. This model will be used to support the definition of drill locations for upcoming fieldwork.
The re-examination of archived data and new geological inputs have revealed a more intricate mineral system than originally interpreted. Evidence of multiple phases of mineralising events and structural complexity are emerging through current evaluations.
Geological Zonation Observed in Hydrothermal System
Lincoln’s technical team has identified features associated with a long-lived hydrothermal system, including zonation patterns and multi-phase mineralisation. The geological data collected thus far underscores the advanced nature of the Minbrie mineral system, which the company is mapping in greater detail through a combination of historical reassessment and modern tools.
The development of the 3D geological model is expected to clarify spatial relationships across the stratigraphy, enabling more precise planning for future drill campaigns. Assay results from the most recent field campaign will continue to be received through June, further informing structural interpretations.
Upcoming Drilling Scheduled as Model Finalisation Nears
With the finalisation of modelling activities expected soon, Lincoln plans to identify key areas for drill testing in the coming months. Drilling is scheduled to commence in the second half of the year, following a detailed assessment of the refined model and verification of data from re-assayed historical intervals.
Lincoln Minerals (ASX:LML) remains engaged in progressing its broader portfolio within the Gawler Craton, with the Minbrie Project forming a central part of its copper and base metals exploration strategy. The continued advancement of this program places the company within a sector gaining attention on the ASX 200 as exploration and development projects advance across South Australia.
