Lumwana West, Mwombezhi Dome
The Mwombezhi Dome is located in the western extension of the Lufilian Arc, host to the Central African Copperbelt. The Mwombezhi Dome is comprised of two northeast-southwest trending basement inliers, and is one of several domes in an area of the Copperbelt known as the ‘Domes Region’.
The Domes Region is host to the new generation of Zambian Copperbelt mines including Barrick’s Lumwana Mine on the eastern lobe of the Mwombezhi Dome plus First Quantum’s Kansanshi Mine and Trident Deposits. The Sentinel Mine to the west is also owned and operated by First Quantum.
The Lumwana West project is located on the western lobe of the Mwombezhi Dome. The Lumwana West licence area covers numerous prospects, as defined by regional soil geochemistry. The Nyungu prospect was selected by Argonaut as the first area for intensive investigation.
An Exploration Target of between 130Mt and 180Mt at a grade range of 0.45% to 0.65% copper at the Nyungu deposit was estimated by independent technical consultancy RungePincockMinarco in accordance with the 2012 JORC Code.
The Lumwana West Project is held 65% by Argonaut, 25% by a subsidiary of Antofagasta plc and 10% by Zambian National Shareholders.