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.

Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected 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. This Stuart Shelf (P198037) contains a total of 619 point data values acquired at a spacing between 100 and 800 metres. The data is located in SA and were acquired in 1980, under project No. 198037 for Department of Minerals and Energy (Victoria).

Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected 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. This Barton Northeast Seismic Traverse, Gravity (P197964) contains a total of 69 point data values acquired at a spacing between 250 and 300 metres. The data is located in SA and were acquired in 1979, under project No. 197964 for Department of Mines and Energy South Australia (SADME).

Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected 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. This Stuart Shelf (P197978) contains a total of 789 point data values acquired at a spacing between 100 and 500 metres. The data is located in SA and were acquired in 1979, under project No. 197978 for Department of Minerals and Energy (Victoria).

Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected 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. This Keith Anomaly, Tintinara Traverse, Gravity Survey (1979O2) (P197942) contains a total of 32 point data values acquired at a spacing of 200 metres. The data is located in SA and were acquired in 1979, under project No. 197942 for BHP Group Ltd.

Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected 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. This Gravity Survey (P197953) contains a total of 37 point data values acquired at a spacing of 10500 metres. The data is located in SA and were acquired in 1979, under project No. 197953 for None.

Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected 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. This Stuart Shelf (P198122) contains a total of 1255 point data values acquired at a spacing of 725 metres. The data is located in SA and were acquired in 1981, under project No. 198122 for Department of Minerals and Energy (Victoria).

Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected 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. This Stuart Shelf (P198125) contains a total of 560 point data values acquired at a spacing between 100 and 1000 metres. The data is located in SA and were acquired in 1981, under project No. 198125 for Department of Minerals and Energy (Victoria).

Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected 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. This Stuart Shelf (P198120) contains a total of 1507 point data values acquired at a spacing between 100 and 1000 metres. The data is located in SA and were acquired in 1981, under project No. 198120 for Department of Minerals and Energy (Victoria).

Gravity data measure small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected 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. This Northern McArthur Basin Gravity Survey P201480 Spherical Cap Bouguer Anomaly 267GU is a complete Bouguer anomaly grid for the Northern McArthur Basin Gravity Survey (P201480) survey. This gravity survey was acquired under the project No. 201480 for the geological survey of NT. The grid has a cell size of 0.00457 degrees (approximately 500m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 6898 gravity stations were acquired to produce this grid.