Publication Name: Second South-Eastern Australia Oil Exploration Symposium - Technical Papers
Authors: D.H. Tucker, R.J. Henderson, R. Franklin and S. Dennis
Date Published: December 1986
Number of Pages: 17
Reference Type: Book Section
Abstract:
Airborne magnetic surveys can now provide much more detailed results due to improved equipment sensitivities and survey procedures. New techniques for the analysis of the results, such as image processing and computer-based routines, can reveal more information of value to exploration. To demonstrate these principles, the BMR in 1984 flew total magnetic intensity surveys at low altitude in a test area in the Gippsland Basin, as the Bass Strait in general is one region in Australia where existing airborne magnetic data are inadequate. The results show a greater resolution of anomalies than earlier work. A narrow northsouth anomaly shown in the 1956 survey contours was not repeated and was probably caused by a levelling error. Two new structural patterns are suggested--one east-west and the other northeast-southwest subparallel to the coast. Some of the anomalies may define the extent of magnetic volcanics.