XRF analysis of drill holes in the Ngalia Basin

Abstract

Core on open-file in the NTGS Core Library in Alice Springs, and from holes drilled within the area of the leases listed below, was analysed by portable XRF (Innov-X alpha 4000). Measurements were made every 1-2m along the available core sections. This sampling was conducted for several purposes;

a) to assist with stratigraphic correlation

b) to determine the sensitivity of the XRF to low-level uranium

c) to determine if any patterns of elemental enrichment or depletion relate to uranium mineralisation

Related Tenements: EL25334, EL24561 (Tenements held by Element 92 PTY LTD - 100% owned company of Thundelarra Exploration)

Brief summary of results: The XRF is able to detect low-level (< 100ppm) uranium anomalies that correlate with historic gamma probe anomalies. Broad-scale variations in Ca, K, Fe, S appear to provide useful information for stratigraphic analysis. Uranium appears to be accompanied by low-level Mo, and Pb enrichments, but no patterns of elemental enrichment or depletion relating to uranium mineralisation have been discerned at this stage.