Partial relinquishment report for EL 28498 Freeling for year ending 11 August 2015

Abstract

Work associated with EL 28498 began with the acquisition of 2.5m resolution satellite imagery over the Aileron-Reynolds project area in 2012. The imagery was used to aid reconnaissance and mapping of the region. Work in 2013 included a low level airborne geophysical survey which covered over half of the relinquished area of the Freeling tenement. The survey was flown at 100m spacing and the data was subsequently merged with previous Arafura-acquired data sets and open file regional data. The merged geophysical data was then used to create a lithostructural map of the Aileron-Reynolds project area and to generate REE and base metal targets, with particular interest in in areas under Cenozoic cover as is the case in much of the relinquished area of EL 28498. The magnetic data was also used for 3D inversion modelling to generate targets with Nolans-style geophysical signatures. The interpretation of the geophysics undertaken in 2013 identified four REE targets within the area of relinquishment of EL 28498 and numerous zones with Nolans-style magnetic signatures. Two of these zones were subsequently investigated using biogeochemical sampling techniques; however no anomalous metal assays were returned. After two years of tenure EL 28498 was reduced in size from 158 to 144 blocks and after four years the tenement was further reduced by 72 blocks. The recently relinquished 72 blocks comprises the northwestern most six blocks and the eastern most 66 blocks of the tenement and are regarded as being the least prospective for REE mineralisation.