Eromanga holds a 20.99% interest in the Edwards Creek Base Metals Joint Venture ("ECBMJV") which is exploring for Uranium together with Copper and Gold in South Australia.

A drilling plan has been developed by the operator at the Santorini gravity anomaly. An airborne EM survey covering 234km2 was completed on ELA 9/07 during 3Q 2007 and a ground gravity survey on EL 3790 was completed by 1Q2008.

The Project area is located within the transcontinental structural corridor referred to as "G2" and within the "South Australian Copper Belt". This structural feature is believed to be one of the controlling factors for the location of the poly-metallic Olympic Dam orebody located about 250 kilometres south of the Edward Creek Project. The Project area is therefore prospective for "Olympic Dam" type ore deposits. Past copper mining on the ECBMJV tenements and results from regional exploration by previous explorers contribute to establishing the prospectively of the Project for gold, copper, lead, zinc and uranium mineralization.

Two regional gravity anomalies (Herakleion and Santorini) have been identified. Drilling at Herakleion in 2006 identified rocks which petrological studies indicate are Early to Mid Proterozoic in age. These rocks were intersected at a depth below surface of 670 metres. Such rocks are sufficiently old enough to be capable of hosting Olympic Dam style mineralisation. However, no economic mineralization was recovered from the core sampling conducted and the exploration focus has moved to Santorini.

 Santorini

Roll front and unconformity related types of uranium deposits are also being searched for at Edward Creek. The uplifted basement rocks of the Peake and Denison Inliers are potential sources of uranium which may have been dissolved and carried by surface waters to sites where deposition and concentration of uranium could occur.The target at Santorini is an "Olympic Dam" type structure.

Favourable features observed at Santorini include:

  • a zone of structural complexity defined in 200 m line spaced and regional magnetic survey data 
  • a NW structural trend, identified in magnetic data
  • the War Loan Copper mine is located a couple of kilometres to the east where mineralization is hosted in quartz-goethite-malachite veins (rock chip assayed: 14% Cu, 1.77 g/t Au, 8 g/t Ag).

 

The weathered gossans and the various quartz-malachite-goethite veins that have supported previous mining activities in the eastern part of the Project area may be the result of secondary precipitation of minerals leached from a large underlying orebody.

The operator has constructed various models for depth and density calculations using ground gravity data.
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