Partial relinquishment report 11 October 2004 to 1 November 2013, EL 24246 Napperby

Abstract

In 2007 Toro commissioned Fugro Airborne Services (Fugro) to undertake a broadly spaced airborne electromagnetic (AEM) survey. In 2011, DYL commissioned Fugro to undertake a second AEM survey designed to delineate subsurface palaeochannels around the periphery of Lake Lewis with the potential to host both calcrete and roll-front style uranium deposits. The potential for northeast directed paleodrainage targets draining fertile sources to the southwest of Lake Lewis undoubtedly exists; however, the priority to assess the outlined Napperby resource means that available resources must be focused to this end. The less attractive portions of EL 24246 are thus being culled. The only data acquisition that took place over the relinquished portion of EL 24246 comprises two short line segments from the Fugro EM survey (2007). The areas selected for surrender were chosen on the basis of the failure to identify, through analysis of regional and historical data in conjunction with AEM survey data, any palaeochannels or drainages that could potentially host calcrete or deeper roll-front style uranium mineralisation.