Annual report on Edith River U-Au-Cu prospect

Abstract

The Edith River U-Cu-Au Project consists of one granted Exploration Licence (EL 23568) covering 474.9 square kilometres approximately 220 km south of Darwin in the Northern Territory. The tenement area is situated approximately 55 km north-northwest of the township of Katherine and is accessed via the Stuart Highway then along the unsealed Spring Hill Road. AsIs to carry out a reinterpretation of exploration data over the Woolgni project area, with an emphasis on the existing geophysical data. AsIs concluded that the project area was highly prospective for uranium mineralisation, including unconformity, sandstone; quartz-pebble conglomerate, vein, and IOCGU deposit types. It also suggested that interpretation of aeromagnetic data could reveal structures and shears that may host gold/base metal mineralisation within the Cullen Batholith. AsIs identified the following areas within the project area as being of specific interest for uranium exploration: - Volcanics of the Edith River Group crop out in the central east of EL 23569. These are interpreted to unconformably overlay the Cullen Granite. This represents a suitable environment for precipitation of uraniferous minerals in the basal sequence which includes conglomerate and shale. - Sediments of the Mesoproterozoic Tolmer Group crop out in the north-west corner of EL 23569. At the base of this group is the Depot Creek Sandstone, a pebbly quartz sandstone that unconformably overlies the Cullen Granite. This presents a suitable environment for uranium precipitation. A number of elevated U/Th ratio values occur near the margins of the Depot Creek Sandstone and indicate a high priority exploration target. - In the extreme north of EL 23568 a high uranium channel value is located near the edge of outcrop of Cullen Granite.