1948
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This report describes the results of a micropalaeontological examination of samples recovered from the depth of 200-250 feet from Bondsprings station.
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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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Details concerning the reserves of iron ore in Australia have been tabulated in this report. The report provides estimates of the grade and probable reserves of ore for the known Australian deposits.
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This report describes the results of a micropalaeontological examination of eight rock samples from Mount Canaway.
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This report describes the results of the micropalaeontological examination of two samples from central Queensland.
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This report describes the fossils collected by D.M. Traves early in 1948 from the Barkly Tableland and adjacent areas in Queensland and the Northern Territory. The sequence of Cambrian faunas as far as it can be recognised in the present collection corresponds to the revised sequence given by F.W. Whitehouse in "The Cambrian Faunas of North-East Australia". This report comprises stratigraphical and palaeontological notes, and a preliminary list of fossils with notes on the lithology of the rocks in which they occur.
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The Trough Area extends parallel to and 200 to 300 feet west of the eastern beach from approximately 4800 feet north of the zero line shown on the locality plan, to 6000 feet south of the zero line. It has a flat sandy floor 150 to 200 feet wide, and a foot or two below water level. The "trough" is bounded on the east by the fore-dunes, and on the west by an area of shifting sand which rises sharply to elevations of 25 to 35 or 40 feet. Deposits of heavy minerals occur at or near the surface at several localities along the western edge of the trough. This report gives an estimate of the quantities of heavy minerals occurring from 2100 feet north to 1100 feet north.
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This was the first study of its kind, by the Commonwealth team. The study included demonstrations of the dithizone tests for traces of some heavy metals in the field environment, of operational and sampling procedures, and geochemical reconnaissance. Several reconnaissance traverses were sampled and examined. Extractable forms of copper and, in a very presumptive manner, extractable forms of lead and zinc were sought in the test materials. In addition, tests for copper, lead and zinc were made in some ignited and fused specimens. The testing procedure and results are described in this report.
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This report describes the results of the micro-examination of seven samples taken from Fossil Beach, Mornington.
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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.