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  • This report arises from an application by Tableland Tin Dredging, N.L. that tin mining be exempt, like gold mining, from taxation. A detailed examination was made of the tin-mining industry, the results of which are attached to the Report: Appendix I outlines the economic position of the Australian tin industry, and Appendix II summarises the positions of the individual mines. Since the application was first submitted, amendments to the Act have considerably improved the taxation position of mining companies. During the investigation the conclusion emerged that, notwithstanding the recent decided improvements in taxation as applied to mining, some further improvements seemed desirable. Since it was found inadvisable, on grounds of economics policy, to make a special case for the tin industry, proposals were put forward for the mining industry as a whole, using data collected from various mines as particular examples of the effects of taxation.

  • Five leases were taken up by the Commission in the Parishes of Jeeraland, Traralgon, Budgeree and Yinnar in the County of Buln Buln. These notes give brief descriptions of three of these leases and also contain some recommendations relative to prospecting on them. Two geological sketch maps are included.

  • There are three areas so far discovered, each in a different state of development. They are: the East Finniss deposit, which has had a number of costeans and three shafts sunk on it by the present party; the Brown's mine deposit, which has an old shaft and many costeans sunk for copper around 1906; and the Mt. Fitch prospect which has two costeans and an 11 ft. shaft, all old and some distance from the present area of interest. This report deals only with an assessment of the present position and with recommendations for future work in the uranium prospects.

  • To date the Mosquito Creek field appears primarily to be a good gouger's prospect. It could carry one Company operating a small plant but not as at present three or four Companies. However, the whole of the exposed granite rock has not been prospected, and the possibilities of the field not realised. It is possible that lodes of payable width, i.e. 3 ft or more, may be located in the future. The veins proved to date are thin but are numerous, persist over long distances and carry value at depth. Valuation of scheelite ground is by no means as simple as has been reported in the press. Wind and rain have concentrated the ore in the surface soil covering these numerous veins, over widths up to 20 feet. These areas of quartz-scheelite are easily located by the use of an ultra-violet lamp and could be stripped by bulldozers. The obvious action for any company interested in this field would be [as follows]. 1. To satisfy themselves by trial of the commercial value of the strippings. 2. To carry out active exploration and cover by mining lease large areas of scheelite veined granite. 3. To consider the thickest reefs so exposed at a later date. The existing companies have not been alive to the possibilities of the field, have purchased at high cost small leases and exuded a great deal of hot air. The further possibilities of the field are reasonably good and depend primarily on the recovery of scheelite by bull-dozing to shallow depth veined granite.

  • This report is supplementary to Records 1948/033 and 1948/016. The information given in this report was obtained during a visit to the Western Australian Goldfields. The period April 26th to May 2nd was spent at Kalgoorlie, May 3rd and May 4th at Sons of Gwalia Mine, May 5th at Kalgoorlie, and May 6th in discussions at Perth with the Under Secretary for Mines and others. This report provides an overview of the respective positions of the Paringa Mining and Exploration Company, South Kalgurli, Kalgoorlie Enterprises, and Sons of Gwalia mines.

  • The geology, production history, ore grade, and ore reserves of the Northern Star Mine are discussed in this report. Four accompanying plans are included.

  • The occurrence of radioactive minerals with cobaltiferous deposits in the Carcoar area has been known since 1894, but until recently they have not received much attention. The present geological survey has been carried out following the discovery of three rather significant radioactive anomalies in the north-eastern part of the mined area, during radiometric surveys in 1950 and 1951. The geological survey has shown that the cobaltiferous-uranium deposits occur in strong north-south shears in an area of Silurian slates and volcanic rocks intruded by diorite sills and dykes, close to the south-eastern boundary of a large mass of hornblende diorite. Opportunities occur for the discovery of other uranium deposits in parallel shears outside the area, in which radioactive anomalies have already been found. This report gives a detailed account of the geological survey. Geology, geological structure, the workings, deposits, and mineralization are discussed, and recommendations are made for future testing and surveying of the area.

  • Summary report on the ore prospects of some Western Australian gold mines. The report provides details on production, ore deposits, and operations.

  • Report on mine maintenance, costs, equipment, employment, reserves, and workings.

  • Report on mine maintenance, costs, equipment, employment, reserves, and workings.