PEAK ASSET: ARVO WRAP 23 January: ASX falls for week; Life360 soars 27pc, $A at 16-month high | Emerging markets rocket with gold as de-dollarisation picks up | Lincoln Minerals Identifies Historical High-Grade Copper Targets at Southern Eyre Project |

Lincoln Minerals Identifies Historical High-Grade Copper Targets at Southern Eyre Project

Lincoln Minerals (ASX: LML) has identified multiple high-grade copper targets at its Southern Eyre project in South Australia following a detailed review of historical exploration data.

The review was undertaken after the company confirmed copper mineralisation in historical drilling at its Minbrie project and extended its assessment to surrounding tenements on the Eyre Peninsula.

Lincoln said the work has highlighted a largely overlooked copper system with strong geological similarities to Minbrie and clear potential to deliver new drill targets.

The results reinforce the company’s strategy of prioritising copper exploration in South Australia while refining its 2026 programs.

Southern Eyre Copper Potential

The review identified 41 historical rock chip samples collected during exploration in the late 1980s that returned copper grades of up to 11.1 per cent with associated gold values of up to 0.6 grams per tonne.

These samples came from areas of banded iron formation and dolomite adjacent to the Kalinjala Shear Zone, which Lincoln considers geologically comparable to the setting at Minbrie.

Known copper occurrences at Southern Eyre cluster along the Middleback Group stratigraphy and around major structural intersections, including near the margins of the Donington Granite intrusive.

Much of the area has seen limited follow-up exploration, with most recent activity on the Eyre Peninsula focused on iron ore and graphite rather than copper and base metals.

Minbrie Remains the Focus

Lincoln’s exploration focus remains centred on the Minbrie project, where it controls a 20-kilometre corridor prospective for copper and base metal mineralisation.

A recent re-assay and review of historical drilling at Minbrie identified zones of mineralisation that were previously unassayed or not logged in detail, confirming widespread copper mineralisation along a 7km strike length.

At the Eagle Ridge prospect, historical drilling intersected an apparent width of 29.5m grading 0.8 per cent copper with associated lead, zinc, and silver that has never been properly followed up.

Approximately 1.7km of strike at Eagle Ridge remains untested, highlighting the potential for additional discoveries within the broader Minbrie corridor.

Mapping and Sampling Programs

Lincoln plans to undertake detailed mapping and soil sampling at Southern Eyre to refine target areas and identify priority drill locations.

At Minbrie, the company is preparing wide-spaced air core drilling along the broader 17km prospective strike to systematically test extensions beyond previously drilled zones.

“By applying our learnings from Minbrie, Lincoln has identified historical high-grade copper and gold surface samples in a comparable geological setting to Minbrie within the Southern Eyre project,” chief executive officer Chris Wilcox said.

“This strengthens the copper prospectivity of the Eyre Peninsula while also demonstrating the potential for gold—these new targets present an exciting opportunity for Lincoln to expand its strategy of focusing on copper discovery in SA.”

The company is currently fine-tuning its 2026 exploration programs to effectively test both Minbrie and Southern Eyre as it works to build a district-scale copper discovery on the Eyre Peninsula.

​​​​​​​Source: SmallCaps