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.

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.

This series of samples from 650 down to 1262 feet from W.R. Johnston's Bore, near Bourke, is in continuation of that reported upon on 13th November, 1941. The samples are described in detail within the report.

A report on the Montana silver-lead mine, Zeehan, Tasmania.

Legacy product - no abstract available

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 following notes accompany a plan of one of the areas tested at Moonta, namely, an area embracing sections of Elder's Main Lode and Elder's West lode between Warmington's and Taylor's shafts. The test surveys on which the plan and notes are based were made in March, 1942. The plan is intended to illustrate in a general way the nature of the potential gradient results of all the tests in the Moonta-Kadina area and it should not be accepted as a basis for assessing the value of the tests as a whole. A great number of tests were made embracing the use of potential gradient, electromagnetic, magnetic and self-potential methods, and the nature of the results varied considerably. Correlation between geophysical results and known geology was good in many cases, but indifferent in others. It will be appreciated therefore, that a decision to carry out routine surveys can only be based on a critical examination of the results as a whole.

Report on surveys made at Coorabin on 12th and 13th August, 1942. Locations of drill sites and bores, and R.L. values are listed.

Mount Kitchin lies about thirty miles west from Chillagoe in Northern Queensland and is 13 miles by bush-track south-west from the now deserted town site of Arbouin on Cardross copper field. Six claims embrace the mica deposits at Mount Kitchin, but only three of these could be examined, on the 8th October, 1942, in the short time at disposal. The brief examination of these three claims, namely, "Wonder", "Anniversary" and "Southern Cross" confirms the remarks of Mr C.C. Morton in his report dated 1/5/42 to the Chief Geologist, Brisbane, and it appears that the "Southern Cross" and "Anniversary" claims contain the only deposits which may become producers in the future. When compared with the mica deposits of Central Australia the pegmatite bodies at Mount Kitchin are very small.

Historical data concerning the operations and findings at the Coorabin coalfield between 1915 and 1937 has been compiled in this report.