The Chilcot copper mine is situated 15 miles south-south-west from Orange, from which it may be reached by reasonably good road. It was examined during 1942 by Dr. N.H. Fisher, Chief Geologist, Mineral Resources Survey, who recommended that a geophysical survey be made to search for additional ore shoots along the lode channel (1942/020). The geophysical survey was made during the three weeks ending 19th December. Operations were commenced over the area north-east of the mine, extending a distance of 550 feet from the mine, thus covering the part favoured by Dr. Fisher for extension of the lode channel. Later the survey was extended a similar distance to the south-west and the north-eastern part was extended a further 150 feet. Methods used comprised geomagnetic, spontaneous, polarisation, electro-magnetic and potential ratio. Traverses were placed at 50 feet intervals and observations by the various methods were made at intervals of 25 feet and, in some parts, at closer intervals. The results of this survey are discussed herein.

Bore No. 3797 on A. Holmes' property is situated about 25 miles north-west of Bore No. 3785 on W.R. Johnston's property reported upon 12/11/41, 19/1/42 and 11/3/42, and about 20 miles north of Bore No. 3752 on G.M. Taylor's property reported upon 1/9/41. The samples examined are from the depth of 50 feet down to 750 feet.

The uranium ores of the Mt. Painter area, in South Australia, although inadequately developed or proved, are the most important sources of uranium compounds yet discovered in Australia. Their chemical treatment is relatively easy, whereas the extraction of uranium from certain other recorded ores is difficult. The possibility of the Mt. Painter ores being amenable to appreciable beneficiation is not remote. The uran-ilmenite from Radium Hill (in South Australia) can be considered as a comparable source of uranium only if the ore is processed for its titanium content so as to obtain the uranium as a by-product. This ore is not amenable to significant beneficiation as regards its uranium content. The remaining minerals listed require several modifications of chemical treatment, detailed consideration of which is not yet justified by known reserves of ore. The recovery of the associated uranium can be effected from any uranium ore without substantial modification of the processes advocated for the extraction of the uranium. The methods suggested for the recovery of uranium from these several minerals aim at the production of sodium diuranate which is a convenient intermediate for conversion into other uranium derivatives. The methods discussed were formerly applied on a small commercial scale to the treatment of South Australian uranium ores, particularly those from the Mt. Painter field.

Mineral deposits in Papua include those of gold, copper and manganese and from these there has been produced gold; silver; copper, copper matte and copper ore; manganese ore; osmiridium and platinum. The gold has been obtained from alluvial deposits and lodes and from the copper deposits. Silver has been obtained along with the gold, but no separate record of it has been kept. The copper and manganese ores have been obtained from their respective deposits. The osmiridium and platinum have been won during the mining of the alluvial gold deposits. A fairly intensive search has been made for petroleum, but there has not been any commercial production. The total value of the mineral production to 30th June, 1941, is £3, 246, 353, the detailed production being as follows: [see table in record].

This report gives a brief overview of the situation and geological features of the barite deposit.

An examination was made of a wolfram vein seven miles north of Broken Hill, on July 8th, 1943. This report contains brief notes on the nature of the vein and the mineral specimens examined.

The Tallandoon Antimony mine, known locally as Dalgliesh and Murphy's, is 2 miles northwesterly from Tallandoon store on the main Omeo Highway and just within the northeast boundary of the Parish of Tallandoon, County of Bogong. This record comprises a description of the general geology and geological report on the antimony deposits.

The felspar deposit which is owned and operated by South Australian Silicates Co. Pty. Limited was visited on the 13th September, 1943, in company with Mr. Sampson, Secretary, of the Company and Mr. S.B. Dickinson, Deputy Government Geologist of South Australia. A description of the deposit follows in the report.

The mine was examined on Monday, June 21st, and the surface and underground workings were mapped by tape, compass and clinometer. An account of the examination and its findings is given in this report. The general geology of the district, economic geology, and calculated ores reserves are described.

For trade purposes four types of asbetos may be recognised - Amphibole, Blue Asbestos, White Asbestos, and Amosite. This report contains notes on the possibility of substituting these types of locally produced asbestos for imported chrysotile.