Overland Carbonatite Discovery: 10km Magnetic Corridor Expands Niobium-REE Targets

Australian Rare Earths (ASX:AR3) has significantly expanded its drill target inventory at the Overland Project in South Australia, with reprocessing of a 1999 airborne magnetic survey revealing a 10km long, north-south magnetic anomaly linked to carbonatite mineralisation. The corridor extends well beyond the company's initial OV167 discovery (announced 8 July 2026), where drilling returned 19m @ 0.61% TREO from 86m to end of hole, including elevated NdPr, DyTb and Nb₂O₅, remaining open at depth.

Historic drill hole R64, located approximately 3km south of OV167 within the same magnetic corridor, recorded a significant gamma response from 56m to 71m and also remains open at depth — an independently supported target for the upcoming program.

Carbonatites are globally significant sources of REE and niobium, and can also host copper, as seen at South Africa's historic Phalaborwa complex. Recent Australian discoveries by WA1 Resources and Encounter Resources have similarly highlighted the multi-commodity potential of carbonatite systems, lending weight to AR3's interpretation at Overland.

AR3 is now preparing a targeted drilling program along the 10km corridor to test priority magnetic targets, investigate R64, and assess the scale and continuity of the broader system — while the company's primary focus remains advancing the Koppamurra rare earths project toward commercialisation.

Read the full article here: https://investornews.com/member_news/overland-carbonatite-discovery-10km-magnetic-corridor-expands-niobium-ree-targets/