1948
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This report comprises notes on the occurrence of ceramic clays in Australia. Data concerning occurrence and grade is provided for each deposit by state.
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The area was bored and sampled in May, 1948. Bores were put down to water level, using a post-hole digger. When the sand brought up from the boreholes appeared to contain appreciable quantities of heavy minerals, it was sampled by quartering. Sample weights, volumes, and dry concentrates were determined. Percentage composition of concentrates was determined by grain counting. The 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. Data collected in the course of the investigation has been tabulated and is appended. Accompanying locality and section plans have been included.
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This report describes the results of a micropalaeontological examination of two rock samples from the Kimberley district.
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Report on samples from the No. 1 bore, allotment 57. The samples described in this report were taken from the depth of 1130 to 1260 feet down and are in continuation of the series reported upon in record 1948/050.
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This report describes the results of a micropalaeontological examination of samples taken from a depth of 0 to 922 feet down.
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This report describes the results of a micropalaeontological examination of samples taken from a depth of 0 to 250 feet.
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This report describes the results of a micropalaeontological examination of samples taken from the depth of 1 to 505 feet down.
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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 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 27 to 62 feet down.