GreenX Metals (ASX: GRX) has identified the likely deep source of copper mineralisation beneath Germany’s historic Richelsdorf mining district, marking the first modern exploration at the site in 40 years.
A helicopter-borne magnetic and radiometric survey, spanning 58 square kilometres over 660 line kilometres at 100-metre spacing, confirmed the presence of the Mid-European Crystalline Zone (MECZ). This major geological structure is widely regarded as the source of metals feeding the Kupferschiefer deposits, one of Europe’s most significant copper belts.
Data analysis revealed two large amplitude magnetic anomalies supported by gravity modelling, consistent with an uplifted basement block beneath the old mines. Chief executive officer Ben Stoikovich described the discovery as a “breakthrough,” noting that the newly mapped structures and fluid pathways could play a critical role in the formation of copper-rich mineralisation.
The survey also highlighted extensive fault zones that extend into the larger Tannenberg 2 licence area, suggesting the mineral system may be much larger than previously believed. Combined, GreenX’s 1,900 square kilometre landholding gives it one of central Europe’s largest brownfield copper exploration footprints.
The project benefits from Germany’s existing infrastructure, shallow cover, and a long mining history, making it strategically valuable at a time when copper is increasingly important to both Germany and the wider European Union.
The exploration is fully funded by the BHP Xplor program, which GreenX has extended until October 2025. Upcoming work includes relogging and assaying historical core, hyperspectral scanning, reprocessing legacy geophysics, and developing a new geological model to refine drill targeting.
Stoikovich added that the ongoing integration of historic records with modern geophysical data is steadily building confidence in the project’s potential to deliver new copper discoveries.
