Annual report for EL 25689 Barkly Tablelands

Abstract

EL 25689 was granted to Tianda Resources (Australia) Pty Ltd on 23 August 2007 for a period of six years. Located on the Barkly Tableland of the Northern Territory, the geological setting is within the west of the Georgina Basin, containing Cambrian sediments of the Anthony Lagoon Beds. These are comprised of limestone, dolomite, chert and possible phosphorite and throughout the tenement subcrop Cainozoic pisolitic regolith and Quaternary alluvium. These marine sediments show radiometric anomalism and are also considered prospective phosphate deposits similar to the Duchess deposit in western Queensland. Field work carried out during the 2008 reporting period focused on the ground followup of airborne radiometric anomalies as defined by the NT government survey. Flight line anomalies identified from the data and located on the ground were generally found to be associated with pisolitic loam with only rare outcrops of the Cambrian sediments. The anomalies were walked with an Exploranium G-135G gamma ray spectrometer, used to determine concentrations of the radioactive elements at high points. The highest count rates were often observed in areas of pisolitic lag that had little or no vegetation. One rock sample and thirty-two soil samples were taken along traverses through the anomalies and submitted for ICP-MS multielement assay. The results of assays of these samples were not available during preparation of the previous annual report and are provided in this report. Despite spectrometer results suggesting uranium contents in lag material of up to 30ppm the subsequent assay results indicate uniformly low results with none above background.. Phosphorous assays from the soil samples are also low. Further work will focus on a more stratigraphic approach to defining units prospective for phosphate with a review of water bores in the area and identification of potentially prospective phosphate units. No field work was undertaken during the 2009 reporting period due to ongoing joint venture discussions.