The radiometric, or gamma-ray spectrometric method, measures the natural variations in the gamma-rays detected near the Earth's surface as the result of the natural radioactive decay of potassium (K), uranium (U) and thorium (Th). 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. The total dose rate is due to natural sources of radiation and is computed by adding estimates of cosmic dose at ground level to the terrestrial dose. The terrestrial dose rate grid is derived as a linear combination of the filtered K, U and Th grids. A low pass filter is applied to this grid to generate the filtered total dose rate grid. This Gawler Craton Airborne Survey Merge Radiometrics - dose rate grid (AWAGS) has a cell size of 0.0004 degrees (approximately 41m) and shows the total dose rate of the Gawler Craton Airborne Survey Magnetic Radiometric and DEM Merge, SA, 2017-2019 survey. The data used to produce this grid was acquired in 2019 by the SA Government, and consisted of 1660000 line-kilometres of data at 200m line spacing and 60m terrain clearance.

The radiometric, or gamma-ray spectrometric method, measures the natural variations in the gamma-rays detected near the Earth's surface as the result of the natural radioactive decay of potassium (K), uranium (U) and thorium (Th). 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 radiometric thorium grid has a cell size of 0.00042 degrees (approximately 44m) and shows thorium element concentration of the Jubilee, WA, 2010 (South Officer 1) in units of parts per million (or ppm). The data used to produce this grid was acquired in 2010 by the WA Government, and consisted of 184296 line-kilometres of data at 200m line spacing and 50m terrain clearance.

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 St Arnaud Region Gravity (P198044) contains a total of 597 point data values acquired at a spacing between 100 and 7000 metres. The data is located in VIC and were acquired in 1980, under project No. 198044 for Geological Survey of Victoria (GSV).

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 Otway Basin Seismic line gravity line 4(part), 5, 6, 7, 8 (P199201) contains a total of 905 point data values acquired at a spacing of 300 metres. The data is located in SA, VIC and were acquired in 1992, under project No. 199201 for Bureau of Mineral Resources (BMR); Department of Mines (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 Galilee Gravity Survey (P201040) contains a total of 6523 point data values acquired at a spacing of 4000 metres. The data is located in QLD and were acquired in 2011, under project No. 201040 for Geological Survey of Queensland (GSQ).

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 Australian Isogal Ties (P199191) contains a total of 7 point data values acquired at a spacing of None metres. The data is located in ACT, NSW, NT, QLD, SA, TAS, VIC, WA and were acquired in 1991, under project No. 199191 for Bureau of Mineral Resources (BMR).

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 Clermont North Gravity (P198899) contains a total of 3676 point data values acquired at a spacing between 50 and 600 metres. The data is located in QLD and were acquired in 1988, under project No. 198899 for Australian Pacific Coal 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 Wyndham-Daly Waters-Nutwood Downs Gravity (P196007) contains a total of 323 point data values acquired at a spacing between 5000 and 8000 metres. The data is located in NT, WA and were acquired in 1960, under project No. 196007 for Bureau of Mineral Resources (BMR).

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 Temma Honours Project, 2010 (P201070) contains a total of 294 point data values acquired at a spacing between 25 and 50 metres. The data is located in TAS and were acquired in 2010, under project No. 201070 for Mineral Resources Tasmania (MRT).

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 (P198079) contains a total of 743 point data values acquired at a spacing between 400 and 800 metres. The data is located in SA and were acquired in 1980, under project No. 198079 for Department of Minerals and Energy (Victoria).