Uranium

The Wallal Project is located in the Canning Basin and comprises Exploration Licenses E45/2815, E45/2782 and E45/2783. The project area is considered to be prospective for sandstone hosted uranium deposits where uranium may have leached from Archean granitoids and been re-deposited in the overlying Wallal sandstone and Jarlemai Siltstone. The project area is also considered prospective for base metal and Channel Iron Deposits (CID).

Interest
Northern Uranium has 100% interest in the Wallal project.

Location
The Wallal Project area lies in the Canning Basin, approximately 50 km east-northeast of Goldsworthy and 30 km northwest of Shay Gap in the Pilbara Mineral Field of Western Australia.

Target & Geology
The project area is within the Canning Basin and is underlain by the Wallal Sandstone, which comprises coarse to fine-grained, poorly consolidated sandstone containing traces of carbonaceous material and pyrite.  The Wallal Sandstone is overlain by the Jarlemai Siltstone, which contains carbonaceous material, and which in turn is overlain by the Callawa Formation.  Lithologies within the Callawa Formation include interbedded ferruginous conglomerate, sandstones, siltstones and claystones.  The Callawa Formation crops out as scattered mesas and rock pavements surrounded by sand plain and in places, pisolitic ironstones.

The Wallal project is prospective for sandstone hosted roll-front uranium deposits where uranium has leached from the Archaean granitoids and been re-deposited in the unconformably overlying sandy and carbonaceous sediments of the Wallal sandstone and Jarlemai Siltstone.  Comparative geological settings include sandstone-hosted uranium deposits such as the Manyingee deposit in the North Carnarvon Basin, which has a total mineral resource of approximately 7000t U₃O₈, and the Oobagooma deposit in the northern part of the Canning Basin.

An airborne EM target, identified as a bedrock conductor, is located close to the southern part of the Wallal tenement E45/2815. This area could be underlain by a north-west trending faulted block of Archaean/Palaeoproterozoic aged rocks from the Pilbara Craton with possible base metal mineralisation as the source of the EM anomaly.

Several rock chip samples taken from a ridge of ferruginous duricrust immediately northwest of the BHP Nimingarra mining centre have indicated the possibility of a buried CID.