Systematic testing of South Stradbroke Island was started on 5th January, 1948. The boring and concentrating of samples were carried out by Associated Minerals Pty. Ltd., Southport. Sitting, levelling and mapping of boreholes was carried out by the Bureau of Mineral Resources. Between January and June, boring was directed towards the high active dunes adjacent to the east coast, and the areas of fixed, vegetated dunes west of the active dunes. The results of the testing work are recorded in this report. The occurrence of heavy minerals has been tabulated. Eight accompanying locality, section, and contour plans are included.

The second drill hole on the area of the Dapville No. 1 anomaly has been completed and some details of the results are given in this report. Following the discovery of this and other magnetic anomalies of low intensity in the course of surveying, there is a need for the determination of priority on the part of the operating company, in the testing of these anomalies. The principal purpose of this report is to draw further attention to the Peak magnetic anomaly and to discuss various factors which the company may desire to take into consideration in the determination of the priority question mentioned above.

This account of the micropalaeontological examination of samples is presented as a preliminary report. The samples examined were taken from the surface down to the depth of 1,130 feet. The bore is being drilled by percussion methods and consequently there is some admixture of fossil species. However, towards the lower part of the bore, these adventitious species disappear and the species recorded are characteristic of the beds in which they are found.

This report describes the results of a micropalaeontological examination of samples recovered from the depth of 200-250 feet from Bondsprings station.

The eastern boundary of the area (the western boundary of D.C. 22) from Peerless Avenue to Ocean Street, was bored in August, 1947. The remainder of the area was bored in April, 1948. Bore-holes were put down to water level, using post-hole digger. Samples were dried and weighed and their volumes determined. The samples were then concentrated by panning, and the weights and volumes of the concentrates were determined. The percentage composition of a composite sample of concentrates from each bore line was determined by grain counting. The data collected and the findings of the investigation, including estimates of the quantities and grades of heavy mineral concentrates, the quantities of overburden and the quantities of each of the heavy minerals, are tabulated in this report.

This report describes the results of the micropalaeontological examination of five rock specimens from the Kimberley Basin.

In the present report it is sought to explain a number of points, including, in particular, to give an explanation as to why the Company now estimates that its annual loss would be £169,000 per annum as against an estimate of £100,000 per annum, given in the statement issued by the Chamber of Mines. Information is also given in this report concerning the present ore reserve position which is closely bound up with the proposed development program.

Report on the method and findings of the beach sands investigation in the area between ML180 and DC22, Broadbeach to North Burleigh. Estimates of the quantities and grades of heavy mineral concentrates, the quantities of overburden, and the quantities of each of the heavy minerals are tabulated.

During the summer of 1947, an expedition was despatched to Heard Island with the object of landing a party to spend about twelve months there. Geological work was undertaken by the writer. The results of this work are recorded in this report. These results include observations on the geomorphology of the island, and a description of the xenolithic ejectamenta collected from the tuffs of Rogers Head and Rogers Head Peninsula.

This progress report briefly describes the developments of chief interest in the Cobar geophysical survey up to 4th June, 1948. Geophysical, magnetic, geological, and gravity surveys were completed in the area between March, 1947, and April, 1948. A summary of the results of drilling and survey work completed to date is given in this report. Recommendations for future work are discussed. Plans showing results from the Cobar geophysical survey have been included.