Curnamona South Project - South Australia (100% CUU)

The Curnamona South Uranium Project is located immediately south of Callabonna’s Curnamona North Uranium Project and was acquired from Newcrest in 2009. Since then, the tenements acquired from Newcrest have been replaced with new tenements by PIRSA for an initial 2 years with revised expenditure commitments. The project is located in the Frome Embayment and is prospective for sandstone hosted uranium deposits of which there are several known examples in the basin (Beverley, 4 Mile, Honeymoon etc).

A large regional 35,000 line kilometer AEM survey covering the eastern half of the Frome Embayment is being funded by the Australian Government as part of an initiative to improve the understanding of the regional geology. The survey will be a huge benefit to mining and mineral exploration companies in the region and Callabonna in particular which has the largest lease position in the survey area. Callabonna has agreed to contribute to the cost of infill flying over an area covering our Curnamona South Uranium Project and will have exclusive access to infill flying data for the first 12 months.

AEM has been used extensively by Callabonna on its Curnamona North Uranium Project where it has successfully delineated palaeo-channels. These palaeo-channels are prospective for sandstone hosted uranium mineralisation of the type being exploited at Beverley and currently in development at Beverley Four Mile. AEM offers the best regional targeting tool currently available for locating Tertiary aged sand filled channels which host the known uranium deposits within the highly prospective Frome Embayment.

Drilling has now commenced at Curnamona South.

Following on from the Geoscience Australia AEM survey that was finalised in April 2011, Callabonna has interpreted potential northward extensions of three palaeo-channels, the Curnamona channel which is host to known uranium at Goulds Dam to the south, the Lake Namba channel and the Yarramba channel.

The proposed drilling will initially test this interpretation of the Curnamona and Lake Namba channels on cross section drill lines across the inferred channels. Some previous drilling in the area had indicated elevated uranium and partial oxidation of the sequence nearby. The current drilling will focus on areas not previously drilled and will infill other areas. The actual number of holes drilled will depend on progressive results. Native title and heritage clearances have been conducted in co-operation with the Adnyamathanha Traditional Lands Association (‘ATLA’).

Exploration Strategy
  • Drill fences of aircore holes across interpreted channels to test for uranium minerlisation and redox state of sediment package.
  • Complete down-hole gamma logging of holes.
  • Assay samples from intervals identified as anomalous from gamma logging.

  

Map showing planned extent and flight lines of government funded Airborne Electro-Magnetic
survey relative to Callabonna's Curnamona Uranium Projects