Fifth annual and final surrender report for EL 24939 Woolner

Abstract

The primary target for Rum Jungle in EL 24939 was unconformity-type uranium on the flanks of the Archaean Woolner Granite at Woolner Dome. Exploration was largely based on acquisition and interpretation of geophysical data followed by RAB and air core drilling. Fixed wing radiometrics and magnetics and heli-VTEM were acquired. Two small TEMPEST surveys were also undertaken. For the most part, the EM surveys were unsuccessful, being unable to see through the conductive saline sediments and black soil on the floodplain. Ninety-five holes for a total of 4471 m were drilled during the third year of tenure. The best result was 10 m at 4 g/t Ag, 200 ppm Cu, 0.5% Pb and 0.15% Zn from 52-62 m in RAB hole WORA025. No uranium was intersected. During the fourth year of tenure, one 164.9 m inclined diamond drill hole, WODDH1, was completed on the floodplains at Woolner Station. The diamond drill hole was targeted on magnetic Palaeoproterozoic metasediments on the western flank of the Woolner Dome granite. No economic mineralisation was encountered. No field work could be conducted on the tenement in 2010 due to the extended and unusually heavy wet season and lack of access on the boggy coastal flood plains. Instead, a major desktop review was undertaken of EL 24939 and other ELs in the Top End Project. The geophysical data was modelled in conjunction with structural analysis looking at all possible target commodities. This work failed to generate any new leads and the EL was surrendered.