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  • It is considered that the future of the Mount Bischoff field depends on the success or failure attending efforts to find additional payable ore. The problem then is to locate large tonnages of replacement ore either as extensions of known orebodies or as new orebodies. The results of the campaign outlined in this report will be of paramount importance to the maintenance and development of the field, and the campaign should be conducted energetically by diamond drilling, supplemented by underground explanatory work. The geological interpretation, objectives of the drilling, and proposed drilling campaign are outlined in this report. Three accompanying geological plans are included.

  • The extent, structure, and thickness of the Coorabin coal measures are discussed in this report.

  • The series of samples described in this report ranges from 1050 feet down to 1372 feet and is in continuation of those reported upon on 25/7/45.

  • The operational history, orebody, workings, grade, tonnage, and financial considerations relating to the Chesney mine are discussed in this report. Two geological plans are included.

  • This report outlines the headings under which mineral statistics might be collected, and the information that is required from metal and mineral producers. Attached are lists of metals and mineral products under the appropriate classes.

  • The Harold's Cross Barite Deposit lies 7.4 miles slightly north of east from Captain's Flat. Four separate deposits were noted, each occupying a minor shear or joint plane in the granite. The past production and geology of these individual deposits are discussed in this report.

  • Asbestos has been mined from an open cut in portions 122 and 12 of the Parish of Yulgilbar, County of Drake. There are a few outcrops of rock in the immediate vicinity of the known deposits, and this renders geological interpretation of the area difficult. Because of this an extensive programme of development has recently been undertaken including drilling, trenching, shaft-sinking and driving. The geophysical surveys made were intended to assist the development, where possible, by outlining the probable extent of asbestos deposits, elucidating structural features associated with the deposits, and providing any information that would assist the geological interpretation of the area. The objectives, survey methods, and results of the survey are discussed in this report. Seven accompanying plans are included.

  • In response to a request from Mr. W.H. Williams, Director of Mines, Tasmania, a geological survey was made of the asbestos deposits situated near the tunnel on the Emu Bay railway, 5 miles north-east of Zeehan. A programme of investigation was set out involving a detailed survey of the deposit, prospecting and development work, an assessment of potential fibre grades and ore values, and research into milling practice and market utilization of fibre. The geological survey and related investigation, which are the focus of this report, were concerned mainly with the first three items. Three plates, including a geological map, surface plan, and a plan showing underground workings and effective grades, are attached to this report.

  • The period 30th to 31st May, 1946, was spent in selecting five sites for diamond drilling at the Cosmopolitan Howley Mine, Brocks Creek district. A description of the geology and the conclusions reached as regards drilling are given in this report. A plan of the mine and sections plan are included.

  • The series of samples described in this report are from 900 to 1536 feet down in bore No.3843, and is a continuation of that reported upon on 23/5/44.