Terrain Minerals has launched a targeted air-core drilling campaign at its Lort River Project in Western Australia, aiming to expand on previously identified high-grade rare earth element mineralisation within a large regolith clay basin.
- Commencement of ~1,500m step-out air-core drilling at Lort River Project
- Targeting a 66 km² regolith clay basin identified via airborne electromagnetic surveys
- Previous drilling intersected 8m @ 4,037 ppm TREO including high magnet rare earth elements
- Drilling aims to test scale and grade consistency near high-grade zones
- Part of Terrain’s broader strategy to develop critical minerals assets in the Albany Fraser belt
Exploring a Rare Earths Frontier
Terrain Minerals Limited has initiated a follow-up air-core drilling program at its wholly owned Lort River Project, situated in the Albany Fraser belt near Esperance, Western Australia. This campaign seeks to build on promising results from earlier drilling that revealed high-grade rare earth element (REE) mineralisation within a substantial regolith clay basin.
The approximately 1,500-metre step-out drilling is designed to test priority zones adjacent to a standout intersection of 8 metres grading 4,037 parts per million total rare earth oxides (TREO), including magnet rare earth elements such as neodymium and praseodymium. These elements are critical for emerging technologies, including electric vehicles and renewable energy systems.
A Basin of Opportunity
The target area is a shallow regolith clay basin spanning roughly 66 square kilometres, identified through Terrain’s airborne electromagnetic (AEM) surveys. This geophysical method has been instrumental in delineating conductive zones that correlate closely with prior geochemical anomalies and drilling results, providing a compelling framework for exploration.
Within this basin, previous drilling intersected exceptionally high-grade zones, including 1 metre intervals with nearly 1% TREO, alongside significant concentrations of magnet rare earth elements such as neodymium, praseodymium, and dysprosium. These grades compare favourably with other leading Australian and international REE projects, underscoring the potential scale and quality of the Lort River discovery.
Strategic Timing and Broader Portfolio
Executive Director Justin Virgin highlighted the strategic timing of the drilling, noting that March offers a narrow window before agricultural activities restrict access to the broad acre paddocks. The company is balancing this REE exploration with ongoing work at its Smokebush gold-silver project and other prospects, including Lightning and Wildflower, where drilling campaigns are also underway.
Terrain’s diversified portfolio spans gold, gallium, copper, lithium, and critical minerals projects across Western Australia and Queensland. The Lort River Project’s emerging status as a clay-hosted REE discovery aligns with the company’s ambition to contribute to Australia’s critical minerals supply chain, a sector gaining increasing global attention.
Looking Ahead
While no new assay results have been released from the current drilling, the campaign is expected to provide valuable data on the extent and consistency of mineralisation within the basin. The correlation between geophysical conductivity and geochemical anomalies offers a promising targeting tool that could accelerate resource definition.
Terrain’s methodical approach, combining geophysical surveys with targeted drilling, positions the company to potentially unlock a significant REE resource in a region with favourable infrastructure and regulatory conditions. Investors and industry watchers will be keenly awaiting assay results to gauge the project’s advancement towards resource estimation.
Bottom Line?
Terrain Minerals’ ongoing drilling at Lort River could soon clarify the scale of a rare earths discovery with critical implications for the Australian minerals sector.
Questions in the middle?
- Will the new drilling confirm consistent high-grade rare earth mineralisation across the 66 km² basin?
- How might Terrain’s Lort River Project compare economically and strategically to other Australian REE deposits?
- What timeline can investors expect for resource estimation and potential development milestones?