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  • A seismic reflection traverse on portion of the Giralia anticline was conducted by the Bereau of Mineral Resources (BMR). This work constitutes a part of a general programme of investigation which the BMR, Geology and Geophysics, has been carrying out on Permit areas held by Ampol Petroleum Ltd. in this area. The purpose of the survey is to idenfy the proposed geology structure in this region based on the previous geology surveys.

  • The object of my trip to the United States of America was to discuss problems of micropalaeontology with various authorities in that country, to visit the palaeontological laboratories of the United States Geological Survey and National Museum, State Universities, Museums and laboratories of oil companies and to enquire into the latest techniques used in oil-field laboratories. I was also to attend the joint Annual Convention of the American Association of Petroleum Geologists, Society of Economic Palaeontologists and Mineralogists and Society of Exploratory Geophysicists at St. Louis. This report gives an account of the institutions visited by the author and the principal results of the visit.

  • Gravimetric and magnetic investigations have been carried out by the Bureau during October and November 1950 in order to find favourable locations for artesian water bores on lease No. 5893, known as Janina and situated in Barrona County. The geophysical survey was requested because two bores recently drilled on the lease failed to produce artesian water, although artesian water bores previously completed in the area adjacent to Janina lease proved the existence of certain aquifers yielding sufficient quantities of good water. Results of the geophysical fieldwork as correlated with data obtained from boring indicated a gentle uplift of basement rocks and water bearing strata, trending from NE to SW and occupying more or less all of the center part of Janina lease. No indications could be derived however from geophysical data as to a relatively steep uplift of basement rocks in the vicinity of bore No. 8153. Hard strata of sandrock and quartzite encountered by this bore at approximately 470 to 480 feet therefore must be classified as probably being of local character. Further drilling operations for suitable water supply naturally should avoid the aforementioned structural high, which is apparent from both boring data and gravitational work.

  • This preliminary statement sets out briefly the results of a drilling campaign conducted by the Bureau in accordance with an agreement between the Mines Department of N.S.W., the Joint Coal Board and the Bureau. The area drilled totals about 120 acres in the Parish of Kahibah, Co. Northumberland, west of the town of Cardiff. The purpose of drilling was to test the westerly extension of the Australasian "seam" beyond the colliery workings and to define the potential open-cut site.

  • On May 3rd, and again on June 1st, the author visited the Cotter dam to investigate a reported loss of water from the fault on the northern side of the wall. This report gives an account of these visits, together with the author's observations and conclusions in relation to the reported water loss.

  • Samples from three localities in New South Wales were received for micropalaeontological examination. The results of these examinations are described in this report.

  • These notes are compiled as a result of conversations with Government officials and mining engineers in Noumea on 4-6th July, 1951. Figures are given for the production, reserves, and exports of Nickel, Chromite, Manganese, Cobalt, Iron, and other miscellaneous minerals. Most of the figures quoted herein have been compiled from records collected by the Australian Consul.

  • At the request of the Government Geologist of Western Australia some gravity observations were made near Bullsbrook, a small township on the Perth-Geraldton road, 27 miles from Perth. It was thought that the gravity observations would help resolve a problem connected with the water supply of the township on which the advice of the Geological Survey of Western Australian had been sought. Because the gravity method had proved successful elsewhere in determining the thickness of sediments overlying dense basement rocks, it was though that some estimate of the thickness of sediments underlying Bullsbrook could be made by using the method. This report gives an account of the operations and their results.