Partial relinquishment report for EL 25184 Ammaroo Phosphate Project

Abstract

The Ammaroo Phosphate Project is located 240 km southeast of Tennant Creek. The project area contains the billion tonne Ammaroo Phosphate Deposit, which is currently Australia's largest undeveloped JORC phosphate resource, the satellite Ammaroo South resource, the Rockhole Prospect and significant greenfields potential in the east. The overall Ammaroo Phosphate Project prefeasibility has been announced and higher tenure applied for. EL 25184 contains the western portion of the main Ammaroo resource and an ML application. Twenty blocks are being voluntarily relinquished from the west of EL 25184 because they have been deemed less prospective for phosphate and partly impinge upon a CLC site of cultural significance. There are six RC holes in the relinquished area. Three reconnaissance holes were drilled to maximum depth of 19 m in 2011 and three more were drilled on the Barrow Creek 1 grid in 2013 to a maximum depth of 29 m. One of the 2013 holes, BCRC2238, was essentially a redrill of the 2011 hole APRC023 with a different rig and more reliable sampling system. The average depth of all six holes was 20.3 m. All holes terminated in economic basement. All 1 m samples from all holes were tested on the rig using a handheld XRF with no significant phosphate reported. Handheld XRF results are considered qualitative only and are not recorded or entered into the database. The only samples deemed worthy of laboratory analysis were 36 selected 1 m samples from the 2013 drilling. The best assay by ICPOES was only 2.61% P2O5.