The Bureau of Mineral Resources has carried out two large scale reconnaissance marine geophysical surveys in the Joseph Bonaparte Gulf and Timor Sea areas in 1965 and 19670 It is proposed to continue this geophysical reconnaissance to the south over the northwest continental shelf from Ashmore reef to Barrow Island. 16 000 line miles should be covered in 3 months on mainly east-west lines 9 nautical miles apart. The boat speed will be about 10 knots. The survey will be done by Ray Geophysics (Australia) Pty Ltd under contract.

Techniques for recording deep crustal reflections were developed on an experimental seismic survey at Mildura, Victoria and Broken Hill, NSW, during September to December 1968. The survey was carried out preparatory to a seismic reflection survey on the 'Geotraverse' project, a project initiated by the Australian Upper Mantle Commitee to study the Earth's crust and upper mantle along a line across the Precambrian shield in Western Australia.

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The report on the Geology of the Carnarvon Basin is issued in three separate and relatively independent Parts. Each Part treats an individual section of the subject and is accompanied by a Summary and an appropriate list of References. Part 1 (published 1965) deals with the Pre-Perrnian Stratigraphy and also includes a General Summary and other introductory information. Part 2 (published 1967) deals with the Permian Stratigraphy, and Part 3 details the Post-Permian Stratigraphy and also contains information on Regional Structure, Palaeogeography, and Economic Geology. These Parts are being published separately, but, as they are parts of a single report, text-figure numbers are continued through the Parts. The regional map of the Basin is included in Part 1.

Bullentin 80, is a collection of Palaeontological Papers, 1965.

H51-B1/2640 Contour interval: 50

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Legacy product - no abstract available