Results of a micropalaeontological examination of samples from a depth of 50 feet down to 1000 feet.

The Pannikin Mine is situated on the south side of the Hart's Range about 7 miles southeast of Mount Riddock and about 9 or 10 miles a little south of east from Schaber's homestead. The Elbow deposit is about 1 1/2 miles south-southwest from the Pannikin. The two deposits, and another smaller one in the same locality, were visited on 22nd October, 1944. The accompanying plan of the Pannikin was made with compass and tape. The report comprises notes on the two mica deposits. Accompanying sketch plans of the Pannikin and Elbow deposits are included.

Four core samples were submitted by New Occidental Gold Mines N.L. on 4th December, 1944. The descriptions of the samples that follow are based on a brief megascopic examination of the cores by H.B. Owen, Geologist of the Mineral Resources Survey. The results of tests for magnetic orientation and susceptibility are described.

Western Australia is the only State from which vermiculite is produced. Occurrences are known in some of the other states and in the Northern Territory, but the information is not sufficiently detailed to enable their importance to be assessed. Vermiculite occurrence by State and Territory, and processing capabilities, are detailed in this report.

The presence of quartz crystals in one of the dumps of an old gold mine, known as Black Charlie's mine, in the Strathbogie Ranges led to the re-opening of part of the workings in the search for crystal suitable for piezo-electrical applications. To date the search has met with success, and has resulted in the recovery of crystals from the old workings and the discovery of a second crystal deposit nearby. The mine, now named the Crystal King mine, was visited by the writer on 9th December, 1944, and again on 22nd January, 1945. The general geology, economic geology, and production capabilities of the deposits are discussed in this report.

Note that this record includes Record 1945/014 by the same author. The Arcadia bore is situated in the parish of Arcadia, county of Westgrove, 85 miles north of Roma and 40 miles north-north-east of Injune. Drilling operations extended from 1936 to 1939 and were carried out by Drillers Limited. The bore was drilled in a large dome structure developed in Triassic and Permian sediments. The Arcadia bore is the second deep bore in Queensland from which a comprehensive series of samples has been examined for their microfaunal content. This examination was carried out on 1,256 samples consisting of drill cuttings taken over every five feet and of cores taken at numerous depths below 4,112 feet. The findings from the examination of these samples are described in this report.

Results of a micropalaeontological examination of samples from the depth of 25 feet down to 563 feet.

A summary report of the maintenance work being carried out in various Western Australian gold mines.

Salt is harvested from the surface of Lake Cowan, approximately 8 miles east of Widgiemooltha. This report follows a visit to the lake in July, 1945, and comprises notes on geology, salt deposits, grade, and harvesting.

A visit was paid to Wiluna on July 28th and 29th, and an inspection made of the underground workings and of the plant. The extraction programme and production of arsenic at Wiluna are discussed in this report.