Minbrie Project Shows Multiple Sulphide Zones Over 7km Strike, Lincoln Reports

Discovery of Extensive Mineralised System

Lincoln Minerals Limited (ASX: LML) has announced a major advancement in its exploration at the Minbrie Copper and Base Metals Project on South Australia's Eyre Peninsula. The company has confirmed the presence of a mineralised system stretching over 7 kilometres, featuring multiple sulphide-rich zones that suggest a district-scale opportunity for copper, lead, zinc, and other base metals.

This revelation comes from a detailed re-assessment of historical drilling data, primarily from Centrex Metals’ 2002-2012 exploration program. Notably, Lincoln’s analysis found that 85% of the 263 historical drill holes did not reach the target depth within the prospective footwall sequence, and only 16% of this critical zone was assayed for base metals. This underexplored interval now represents a significant upside for discovery potential.

High-Grade Intercepts and Strategic Location

Among the standout results is the re-evaluation of discovery hole BUDD192, which previously returned 29.5 metres at 0.8% copper, 7.5% lead, 1.9% zinc, and 9.0 g/t silver from 131.1 metres. Additional historic drill holes along strike, BURCD020A, BURCD015, and BUDD010, have revealed further mineralisation, including intervals with elevated lead, zinc, and copper grades. For example, BURCD020A intercepted 8 metres at 0.1% lead and 0.4% zinc, including 2 metres at 0.3% lead and 1.4% zinc, approximately 1.2 kilometres from BUDD192.

Minbrie’s location within the Eyre Peninsula places it in a premier mining jurisdiction with proximity to existing base metals operations and excellent infrastructure. The project lies within the Gawler Craton, a geological province known for hosting world-class iron oxide copper-gold (IOCG) systems such as Olympic Dam and Prominent Hill, enhancing the prospectivity of Lincoln’s tenure.

Exploration Strategy and Broader Mineral Potential

Lincoln is advancing a two-phase exploration program. The immediate focus is on comprehensive re-logging and geochemical analysis of historical drill core, particularly targeting the under-assayed footwall sequences. Portable XRF and laboratory assays will test for base metals as well as precious metals like gold and silver. Additionally, the company plans to assay for critical minerals including gallium, germanium, iridium, and rare earth elements, which are increasingly valuable in high-tech and clean energy applications.

CEO Jonathon Trewartha emphasised the significance of these findings, stating, "Our ongoing review of historic drill holes continues to uncover significant potential, and we are focused on refining high-priority drill targets in this highly prospective base metals region of South Australia." The company is concurrently securing regulatory and land access approvals to facilitate an aggressive follow-up drilling campaign aimed at delineating the extent and grade of mineralisation.

Implications for Lincoln Minerals and the Market

The confirmation of a large-scale mineralised system at Minbrie marks a pivotal moment for Lincoln Minerals, potentially transforming the project’s valuation and positioning the company as a notable player in South Australia’s base metals sector. The substantial untested intervals and the presence of high-value critical minerals add layers of strategic interest beyond traditional copper, lead, and zinc targets.

While the economic viability of the mineralisation remains to be established through further drilling and assay results, the current data provides a compelling foundation for optimism. Investors and analysts will be watching closely as Lincoln progresses its exploration program and releases further results.