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  • The present author accompanied Mr. R.W. Coxon, Director, Mines Department, Alice Springs, and Mr. S.M. Sneddon, Mines Inspector, Alice Springs, as geologist on their journey for road survey and inspection in the mining area of "Tom Hanlon's Camp" in the Eastern Jervois Ranges. The author's observations of the metamorphosed formations, the Oorabra Creek and Eastern Jervois Range areas, and the sandstones south of Alice Springs are recorded in this report.

  • This report describes the results of a micropalaeontological examination of rock samples from Pidinga.

  • The Tennant Creek Mining Field occupies an area extending some 70 miles east and west and 40 miles north and south. Over this area are scattered a large number of small mines and prospects and it is sometimes difficult to bring a field such as this into perspective so as to obtain some idea of its true valuation. The following notes are designed to help in this direction. The output and nature of the orebodies, and the respective positions and productivity of the major deposits, are discussed in this report.

  • The occurrence of ferruginous laterite in the vicinity of Moss Vale, Bundanoon and Wingello, County of Camden, has long been known. In order to define any zones enriched in alumina, a subsurface prospecting campaign was undertaken by the Australian Aluminium Production Commission at Wingello during July and August, 1948 and at Ellsmore in the early part of 1949. The results of this investigation and previous work are summarized in this report. Detailed descriptions of the laterite and of the individual deposits are given.

  • In 1946 and 1947 the writer had excellent opportunities to study the effect of lateritisation in the course of geological reconnaissances in Northern Australia. From field evidence which has been collected on several aspects of lateritisation - origin, products and relationship to geomorphological processes - a detailed account of lateritisation in Australia can be given. Lateritisation and the occurrence of opal are discussed in this report.

  • The possibilities of finding evaporite deposits in Queensland were investigated by C.L. Knight and E.K. Sturmfels on a reconnaissance trip from 10th July until 5th August, 1949. The localities where indications of evaporite deposits were found or from which they are reported, are classified on the following pages according to the geological formations, and their position is shown on the accompanying map.

  • The possibilities of finding evaporite deposits in Western Australia were investigated by C.L. Knight and E.K. Sturmfels on a reconnaissance trip from 12th September until 14th October, 1949. The localities in which primary gypsum beds or other indications of evaporites at depth were found or from which they are reported, are classified on the following pages according to the geological formations, and their position is shown on two accompanying maps.

  • This report records the results of a micropalaeontological examination of samples from Eva Downs Station. A detailed description of the samples is given in the report.

  • Coal outcrops in the bed of a small gully tributary to the Severn River, at a point 7 miles north of the village of Ashford, 36 miles north of Inverell, New South Wales. A small colliery has been developed in the Ashford Seam and worked intermittently until 1925, mainly to supply coal and coke to the Silver Spur mine near Texas, Queensland. The coalfield and extensions to the north and south have been examined by officers of the New South Wales Department of Mines, the Australian Aluminium Production Commission, the Joint Coal Board and others. During March, 1949 a diamond drilling programme was initiated by the Bureau of Mineral Resources, Geology and Geophysics and both geological and geophysical investigation of the area was carried out by the Bureau during the early phases of the drilling campaign. The geology of the area, nature of the coal, and drilling results are discussed in this report. Logs of diamond drill holes and percussion bores sunk by a former lease-holder are given in the appendix.

  • In testing the properties of a bentonic rock from Cardabia by the Sadler's method, the coarsest residue was examined for microfossils. Three samples were examined. A detailed list of the forms noted in each sample is given in this report.