Annual report on EL 244 year ending 31 December 1972

Abstract

A complete reappraisal of existing data relating to EL 244 was undertaken during 1972. Limited field inspections were carried out in the southern section of the Licence to ground confirm interpreted geological features; to check on some geological mapping undertaken in past years; to collect samples of granite for this section analysis; and to inspect the Beatrice uranium occurrence. New geological maps were compiled on standard sized sheets using metric scales and incorporated previously mapped geology and geology interpreted from old black and while serial photos. In compiling the geological maps it was apparent that the regional geology was inadeqViately known. In an effort to obtain more detailed and more reliable geological base maps a contractor was engaged to provide aerial colour photograph coverage of the entire area. This colour photography together with existing maps and geophysical information is presently being used by consultants in Denver U.S.A. to produce new geological base maps of the area. The new maps will be provided on a scale of 1:25,000. Although the Company had airborne magnetometer coverage of the area undertaken in 1970, this information was only available in the form of raw data and was of little use in that form. A contractor, Hunting Geology and Geophysics Ltd, was engaged during 1972 to reduce the data and produce the results in contour form. Contour maps are presented as overlays to the geological maps. The initial qualitative interpretation of the analogue radiometric data suggested that most anomalies related to volcanic members of the Kombolgie Formation, and were therefore of low priority. Detailed interpretation of all data was therefore not considered justified, and only selected anomalies have been digitised. Plotting and contouring of this data will be undertaken on receipt of the 1:25,000 geological base maps.