Arunta Uranium Project

The Arunta Uranium Projects comprise four exploration licenses located near Alice Springs in the Arunta Region and Aileron Basin of the Northern Territory. The Arunta region is an underexplored part of Australia which is known to contain several uranium deposits including ‘Bigrlyi’ – 20.6Mlb U₃O₈ (Energy Metals), ‘Napperby’ - 7.4Mlb U₃O₈ (Toro Energy), ‘Nolans’ rare earths, phosphate uranium deposit (30.3 Mt at 2.8% REO).

Callabonna Uranium will target several mineralisation styles in these projects including:

Structurally controlled high grade uranium with rare earth minerals hosted in granites (Nolans style) and
Calcrete channel hosted uranium deposits (Napperby Style)

Surficial calcrete-hosted uranium mineralisation is present in a number of prospects in the Arunta region and nearby Ngalia and Amadeus Basins. Calcrete-hosted uranium deposits are known to develop as near-surface concentrations in sediments within major palaeodrainage and playa lake systems. They form where uranium-rich granites have weathered in a semi-arid to arid climate. The weathered uranium is transported in drainage systems and redeposited with sediments cemented by secondary minerals including calcrete, calcite, dolomite, and gypsum. The uranium occurs as carnotite which is deposited as a chemical precipitate late in the formation of the calcrete.