The Corporate Administrative Records Collection of Geoscience Australia (GA) is a bi fold collection; consisting of electronic/digital documents and records in physical paper format. GA's corporate administrative records in physical format are created by the Records Management Unit upon request from staff members when their needs meet specific criteria. The files themselves are bound in cardboard folders and labelled and bar-coded according to their respective classification level and metadata information. Individually, the files are a detailed narrative of specific business activities; describing all of the administrative processes that occurred during an activity. The collection is organised according to a year series system; a method which has been constant throughout GA's evolution. The collection also consists of inherited physical records from various government departments. These include the AFFA series from the Department of Agriculture, Forestry and Fisheries Australia and the UB Series, sourced from the Uranium Branch. In collaboration with the relevant government departments, GA acceded custody of these series, and they are now managed in juxtaposition with the entire GA collection.

Legacy product - no abstract available

The seismic survey made by the Geophysical Section of the Bureau of Mineral Resources to assist in the search for oil in the Carnarvon (North-West) Basin of Western Australia. The seismic field work in the Carnarvon Basin was confined to one field season, i.e., from April to December 1951, and consisted of surveys on the Capa Range and Giralia Anticlines. Both refraction and reflection methods were used. The purpose of the seismic work was to determine if the structures at surface extended to depth and thus establish if a suitable site for a deep exploration drill hole exist. The seismic work has shown that seismic methods are applicable in the investigation of possible oil-bearing struotures in the Carnarvon Basin. It is clear from the results obtained on the Giralia Anticline, that investigation with a view to tile selection ot deep drilling sites cannot be carried out thoroughly without seismic surveys of selected areas.

A refleotion traverse was shot across the centre part of the Giralia Anticline in the Carnarvon Basin of Western Australia, in an attempt to verify the unconformity between Mesozoic and Palaeozoic sediments shown by a previous traverse across the northern part of the anticline. Shallow seismic events recorded were of good quality and correlated very well with surface geology. They also indicated two faults in places where steep dips in surface beds might, by anaJogy with the northern end, be expected. Deep events were in general of poor quality and inconsistent. However, over approximately a mile of the traverse, they were of good quality and indicated nonconformity with the shallow events.

The seismic reflection survey was carried out in the Parish of Darriman, Victoria. The survey was planned to investigate a gravity anomaly, which may be an indication of a structure within the sedimentary section favourable to the accumulation of oil or natural gas. For the most part reflections were exceptionally good, and it was possible to trace one reflecting layer over most of the area. Contouring showed the presence of an anticlinal structure, plunging to the east, but rising and broadening to the west. On the flat crest of the tructure, there is probable closure in two places. The thickness of the Tertiary sediments may be a maximum of 6,000 feet, but may be only 3,000 feet on the crest of the structure and 4,000 feet on the flanks.

These documents have been scanned by the GA Library. Please refer to the document for contents.

These documents have been scanned by the GA Library. Please refer to the document for contents.

These documents have been scanned by the GA Library. Please refer to the document for contents.

These documents have been scanned by the GA Library. Please refer to the document for contents.

These documents have been scanned by the GA Library. Please refer to the document for contents.