Annual report year 1 EL 26459 for the period May 2008 to May 2009

Abstract

EL 26459 is located on southeast ALCOOTA encompassing 118km2 of the Alcoota floodplain. Radiogenic granites crop out north east, north and north west of the licence area namely Woodgreen, Crooked Hole, Mt Ida, Copia and Mt Swan (1770 - 1710Ma). Terrestrial continental sedimentation in late Tertiary laid down a lacustrine/fluviatile sedimentary package approximately 250 metres thick, whose provenance is to the north of EL 26459 namely the above Palaeoproterozoic radiogenic granites. 80% of EL 26459 is underlain by the above late Tertiary early Pliocene Waite Formation (6-4Ma). Radiogenic acid intrusive rocks crop out in the Strangway Ranges to the south of EL 26459 namely Wuluma Granite and Ingula migmatite (1728Ma) which is also the origin or headwaters of the north northeast flowing Waite Creek - Sandover River system which has flooded out onto the Alcoota plain since the beginning of the Holocene 11500 years ago. The current active stream channel flows alongside the western boundary of EL 26459, however palaeochannels to the east are present under a thin layer of redsoil. The area under licence has potential for the discovery of sedimentary uranium deposits within recent calcrete-filled palaeochannels overlying Waite Formation and within the much thicker and older Waite Formation itself. Ground water analysed from Bore RN14245 showed elevated Uranium (26 ppb) and Phosphorus (1380 ppb).