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  • Plans Nos. 617, 618 and 619 are submitted herewith. These plans show no geophysical results. The resistivity curves have been examined and it is considered that certain conclusions can be drawn regarding the behaviour of the clay bedrock. A preliminary structural interpretation has been made on the basis of depth determinations to an interface, assumed to be the top of the clay bedrock. This involves the analyses of three and four layer curves.

  • The deposit is situated 2 miles west from the Scheelite mine at Grassy. A short description of the geology of the area, workings, and mineral occurrence is given in these notes.

  • D.L. Murray's Bore, south-west of Bourke is the most westerly yet to be examined in that area of New South Wales. From the palaeontological aspect it is probably the most interesting, for the majority of samples contain numerous arenaceous foraminifera of Lower Cretaceous age. Samples were examined from the depth of 25 to 375 feet.

  • 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.

  • Car traverses were made in several directions over an area of 30 miles square with Coorabin as a centre, with the object of delimiting, if possible, the margins of the coal basin. The results of the geological survey are summarised herein.

  • 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.

  • Report on the facts and cost of maintaining and increasing production at the Mount Bischoff tin mine, Waratah, Tasmania.

  • 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.

  • This brief report is based partly upon the following typewritten reports obtained from the Tasmanian Mines Department [see record] and partly on a short visit to the deposit. The geology and mineral content of the deposit are described.

  • No. 2 Bore, Boronga is situated north of Moree, near the New South Wales - Queensland border. The samples forwarded for microfaunal examination were from between the depths of 25 feet and 2104 feet.