mag
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Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. The data are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. These line dataset from the Murrindal, Vic, 1996 VIMP Survey (GSV3060) survey were acquired in 1995 by the VIC Government, and consisted of 15589 line-kilometres of data at 200m line spacing and 80m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS.
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During July and August 1951, officers of the Geophysical Section of the Bureau of Mineral resources carried out an aeromagnetic survey of the East Gippsland area of Victoria, using the Bureau's D.C.3 aircraft VH-BUR. An F24 type aerial camera was used for taking vertical photographs for the purpose of plotting flight paths of the aircraft along the flight lines. The magnetic equipment consisted of a modified magnetic airborne Detector unit type AN/ASQ-1. The aircraft was flown at an altitude of one thousand feet above terrain, along parallel flight lines running in a north-south direction one mile apart. This report comprises notes on the survey. A provisional map showing contour lines of total magnetic intensity and magnetic anomalies is attached.
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No product available. Removed from website 25/01/2019
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20 nT
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20 nT
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A collection of cores was sent by the Zinc Corporation for the purpose of magnetic orientation of bedding planes. The collection consists of seven pieces mostly of short length. The results of the magnetic tests, and recommendations for future testing, are discussed in this report.
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No abstract available
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No abstract available
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20 nT
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20 nT