The seismic reflection survey was undertaken by the Bureau of Mineral Resources on top of gravity and magnetic surveys in the Gippsland Lakes district, Victoria. The aim of the seismic survey is to convience the favourable structure to the accumulation of oil being present on the overlying Tertiary rocks. Two north-south traverses and one running east-west and crossing the other two were surveyed.

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In the Edith River area uranium occurs as meta-autunite associated with apatite and hematite in narrow siliceous reef formations which are in part brecciated and mylonized. The reefs, which dip steeply west and strike mostly north-north-west, occur over a length of about 3 miles in a north-south, sheared greisenized, zone in granite. Two main types of granite are present, a coarse grained granite and a finer-grained adamellite, which is intrusive into the coarse granite. In places partial digestion of the coarse by the fine granite has produced a porphyritic "hybrid" granite. All granites except the greisenized granite of the sheared zone give high background counts, 2 to 3 times as high as that of the sediments of the Brocks Creek group into which the coarse granite is intrusive. Within the reef formations the distribution of uranium-bearing material is patchy. In many places the best geiger readings are obtained where cross reefs or fractures with a north easterly strike cut the main reefs. Surface samples were taken across most places where significant Geiger readings were obtained and all returned less than .1% U3O8. Commercial production from the field will only be possible if the grade of the original ore has been greatly affected by surface leaching and a site was selected for a shaft to test the primary ore.

A total of thirteen rotary cored bores were sunk by the Bureau approximately one mile south of the village of Teralba in the Parishes of Teralba and Awaba, Northumberland County. The Great Northern Seam in places is sufficiently thick for open cut mining but the coal is generally of very poor quality and the overburden to coal ratio much too high to warrant further drilling. Continued prospecting of the Fassifern Seam in this area is not warranted, because of the very poor quality of the coal in this seam. This report contains an account of the operations, and describes the results of the geological investigations. The results of drilling are detailed in the accompanying plates and bore logs.

The Giralia Structure is an eroded, doubly-lunging anticline about 60 miles in length and 10 miles in maximum width. It is situated between Exmouth Gulf and the Lyndon River near the coast in the North West Division of Western Australia. In this investigation micropalaeontology has been applied to help in elucidating the surface stratigraphy of the eroded Giralia Anticline. The chronology, correlation and palaeo-ecology of the exposed sediments must be considered in evaluation their oil-possibilities. To this end examination of microfossils, principally foraminifera, aids materially in recognizing unconformities, structural conditions and facies changes, in dating and correlating strata and in interpreting ancient depositional conditions. The samples studied were collected by a field party of the Bureau of Mineral Resources during the winter months of 1950 and 1951. Additional samples were collected by the writer in visits to the area in July 1950 and July 1952.

The discovery of the heavy mineral deposit here described was made by the writer during the 1950 field season in Dampier Peninsula, when geological mapping of the area was carried out in conjunction with Mr. Hampton Smith, Consulting Geologist for Ampol Petroleum Co., Sydney. When traversing the southern west coast from Broome to Carnot Bay the writer noticed the presence of black-sand beaches in several places and he eventually took a sample from one of the best localities. When finalizing the report on the geology of the Peninsula, the writer asked for a detailed analysis of the sample. It was then discovered that it was composed mainly of ilmenite. The report provides an outline of the local geology and physiography. The location, composition, and extent of the deposits are discussed.

This report contains an account of the open cut coal investigations in the Cessnock Muswellbrook region. The area herein reported on is of 1.29 square miles, in the Parish of Howick, County of Durham. Twenty-two bore holes were sunk all of which, totalling 2,749 ft., were cored throughout. The conclusions herein reported are the result of field teamwork by two groups of the Bureau of Mineral Resources. The Petroleum Technology Party was responsible for all basic data obtained from boring. The Geological Party was responsible for locating boreholes, topographic surveying and interpreting and recording results inferred from the basic data. In addition, draughting, map compilation, and petrological and palaeontological determinations were carried out.

Mount Langla is one of a group of volcanoes which lies on the western end of the island of New Britain. The 3,800 feet cone is on the eastern flank of the ancient volcano, Mount Talawe and is almost due south of the wartime Gloucester airstrip. The original report concerning the signs of increasing activity was made by Father McSweeney of the Kalingi Catholic Mission. Father McSweeney was returning from a trip along the north coast on 12th May, when he noticed condensed steam rising from a new location on the summit of Mount Langla. On a visit to Borgen Bay on 30th May he saw gas bubbles in the sea close to the shoreline adjacent to the small conical hill which lies on the western side of the Bay. At the request of the Government Secretary the writer left Popondetta and flew to Lae on 18th June, and left by trawler the same day to arrive at Kalingi on 20th June. An inspection of the volcano confirmed the recent nature of the increase in gas emission and revealed a number of phenomena which are usually identified as pre-eruption conditions.