EL 28260 Erldunda West annual report for period ending 23 March 2012

Abstract

No on-ground exploration activities were completed in the current reporting period. Internal desktop based assessment of historic geological, geophysical and seismic when available data, looking for structural and stratigraphic traps for uranium associated with helium gas was conducted. A summary of historic data for EL 28260 includes: The primary objective was to identify one or more drill targets on/above the regional NW-SE Erldunda Fault Zone and splay which control a major fluid focus high. Outcrop in the tenement was identified some Devonian host out - subcrop within areas of main focus. Outcropping Palaeozoic-Neoproterozoic rocks in the north parts of the tenements are radiometrically anomalous. For multi-element geochemistry or radon cap surveys, shallow depth to bedrock improves viability of the sampling technique and has been considered for the area. Road access makes it easy to undertake several exploratory lines or reconnaissance grids to test the technique, especially over the major fault(s). Publicly available seismic lines appear not in a readily available format to be retrieved and analysed. The presence of surface salt and possibly salt solutions upwelling along the faults would appear problematic for Airborne Electromagnetics (AEM) although the northern parts of the tenement seem salt pan free. Detailed gravity exists for the northern parts of the EL and covers some of the zone of main interest. Further examination of detailed gravity available is required to assist in better designing and targeting geochemical sampling.