A new report from the Northern Territory Geological Survey (NTGS) has delivered a detailed mineralogical analysis of the Angularli uranium deposit — an unconformity-style deposit with an inferred category mineral resource of 1.37 Mt at 1.09% U3O8 containing 32.9 Mlbs U₃O₈.
By integrating spectral data with petrography, x-ray diffraction, geochemistry and geological observations from the Rio Tinto–Cameco Joint Venture, the study identifies mineralogical signatures that could guide future exploration.
Using over 600,000 hyperspectral scans from 17 drillholes, the study mapped complex alteration patterns involving white mica, chlorite, kaolinite, pyrophyllite, and diaspore, particularly around the Angularli Fault Zone. These minerals show distinct spatial and depth-related zonation linked to fluid flow and structural controls on mineralisation.
The findings provide new insights into the geological processes behind uranium formation and offer valuable exploration tools for the broader Alligator Rivers Uranium Field.
To find out more download via GEMIS: NTGS Record 2025-006 Hyperspectral analysis at Angularli uranium deposit, Northern Territory