The Tambourah Project, located in the Pilbara region of Western Australia, consists of four granted tenements covering approximately 110 km². Situated 160 km SSE of Port Hedland, the Project is highly prospective for copper, gold, lithium, zinc, and nickel, with its proximity to major lithium operations like the Pilgangoora and Wodgina Mines adding to its exploration potential.
Significant copper and gold mineralisation has been identified across the Project area. Rock chip sampling has yielded high-grade results, including up to 101 g/t (3.2 oz/t) gold and 4.1% copper at the Lone Star Prospect, and up to 21.78% copper and 3.3 g/t gold at the Hawkstone Prospect. Additionally, a new 12 km copper-gold trend has been identified, with notable prospects such as Logans Find, which has returned gold grades as high as 67.1 g/t.
Riversgold considers the geological setting at Tambourah – an unexplored greenstone belt on the margin of a granite contact – to bear many similarities to that which hosts major lithium-caesium-tantalum (LCT) systems such as those at Pilgangoora and Wodgina. The greenstone belt, which is wedged between the Tambourah Dome and the Shaw Batholith, runs for approximately 25km north to south through the tenement at widths of approximately 5-6km. Historical drilling in this area has intersected 30.5 metres at 1.1% copper, including 4.6 metres at 5.1% copper.
Future steps for the Tambourah Project will involve incorporating these exceptional high-grade copper and gold results into the regional geological model. The exploration plan will be refined, with a focus on further on-ground exploration, particularly targeting the newly identified 12 km mineralisation strike and investigating potential gabbro intrusion sources. These efforts aim to better understand the mineralisation controls and assess the full extent of the Project’s resource potential.
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