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  • The Nelson Bore, which is still in progress and is being drilled with the Commonwealth Rotary plant in collaboration with the Victorian Mines Department, has now reached the depth of 3746 feet, with no indication that the basement rock will soon be reached. Unfortunately no bore in Western Victoria or south-eastern South Australia has been drilled to bedrock, consequently no suggestion can be made as to the possible depth at which it will be met in the present bore. The deepest bore in the area to be palaeontologically examined is Knight's Dome, No. 2, Mt. Gambier, South Australia, which reached the depth of 2013 feet, drilling ceasing in carbonaceous sands.

  • Preliminary assessment of core recovered from drill holes Nos. 22, 23, and 24, King Island.

  • This lease is situated on the Dividing Range south-west from Musgrave Telegraph Station. The geological notes contained in this report refer to the geology and workings of the Looking Glass mica deposits.

  • The following notes on the number of the mica mines in the Harts Range area were collected on a recent water survey. They are very incomplete but it is thought that they may be of interest in view of the possibility of stepping up production in this area. Complete data concerning production, etc. of the mines seems to be impossible to obtain.

  • The relevant portions of letters from Non-Metallics Limited addressed to Mr. J.M. Newman, setting out the reasons for their Application for a Commonwealth Grant, and the details of the Company's position are reproduced here.

  • It was recently suggested by Mr. N. White, Superintendent of Minerals Production, N.S.W., that a geophysical survey be made of the Commonwealth Deep Lead near Glen Innes as part of a campaign to prospect for stanniferous wash beneath the basalt cover. In company with Mr. N. White and Mr. E. Dow, an inspection was made of the area on the 7th and 8th October, in order to determine in the first place whether the problem offers scope for geophysical methods. A geophysical survey, if carried out, would commence in the vicinity of what is known as the Commonwealth Mine and the inspection was made primarily of that area. At present there is no activity at the Commonwealth Mine, which is actually the site where some alluvial deposits were first dredged for tinstone in 1909 by the Commonwealth Tin Dredging Company, N.L., on PML 25, Ph. Wellington, Co. Gough.

  • Legacy product - no abstract available

  • A point has been reached in the prospecting of this field where it is necessary to review results and consider future actions. The bore on site A has been completed and Mr. Knight has concluded his preliminary geological survey of the area. The information now available modifies some of our earlier views. The following statement summarises the position.

  • The Dundurrabin copper prospect is 3.5 miles northwest of Dundurrabin sawmill and settlement, and 5 miles from Lyringham, which is connected by road to Grafton, Armidale and Dorrigo. The mine is favourably situated with regard to supplies of water and timber. Development consists of an adit to the lode with a cross-cut through it (Plate I), connected to a shaft from the surface on the south wall of the lode. The shaft has been sunk 30 feet below the adit with another cross-cut at that level through the formation. A few pits and costeans have been put down along the strike. Geology, prospects, and recommendations for further work are discussed.

  • The overburden (or non-scheelite bearing rocks overlying the ore-bearing rocks) at the mine of the King Scheelite N.L. at Grassy include: 1) A layer of windblown sand ranging in thickness up to 30 feet; 2) An irregular layer of non-mineralised rocks occurring in the north-western part of the present workings; 3) Non-mineralised rocks conformably overlying the lode in the southern part of the workings; 4) Overburden dumped on the southern side of the open cut. The problem of the dumping of the overburden is involved in that of the selection of a suitable site for the treatment plant. Under the proposed scheme to increase production a new site will have to be found for the treatment plant that is to be erected.