1948
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The analyses of some Australian iron ores was undertaken. The results of these analyses are set down in this report. Results are given for each deposit by state.
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The Leigh Creek Coalfield is approximately 350 miles north of Adelaide. Coal seams of economic importance are known to occur in two basins about 5 miles apart. Immediately to the north of the known coal basins is an area of some hundred or more square miles, much of which is covered by a thin layer of rocks younger than the coal measures. Other coal basins could exist beneath this cover, and it is considered necessary to the sound development of the coalfield as a whole, that the prospecting of this area should be completed at an early date. The present survey was undertaken at the request of the South Australian Government and was carried out during October, November and December, 1947. The report is a preliminary one since the analysis of the results is not complete. However, sufficient work has been done to make possible the selection of sites for test drill holes. The geology of the area, geophysical method and application, results, interpretation, and testing are discussed in this report. The results of the gravimetric survey are shown on an accompanying plan.
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Results of a micropalaeontological examination of samples taken from the surface down to a depth of 2130 feet.
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Results of a palaeontological examination of samples taken from several locations in northwest New South Wales and northeastern South Australia.
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This report describes the results of a micropalaeontological examination of samples taken from a depth of 10 feet down to 101 feet 6 inches.
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This report describes the results of a micropalaeontological examination of samples taken from 27 to 62 feet down.
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This report describes the results of a micropalaeontological examination of samples taken at varying depths from bores Nos. 2, 10, and 22 respectively.
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An examination of the New Cobar-Chesney-New Occidental area in 1947 concluded that the discordant contact between slaty and sandy beds in the area was a feature of major importance in ore localisation. Accordingly, an investigation was conducted in the vicinity of Cobar to determine whether a relationship existed between discordant contact and ore formation in that area, and to commence a detailed geological map on a regional scale of the Cobar-Nymagee mineral belt. The general geology, character of the discordant contact, stratigraphy, and economic geology of the area are discussed in this report.
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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.
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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.