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 Mt Isa D Gravity Complete Bouguer Anomaly 1VD geodetic is a complete Bouguer anomaly grid for the Mt Isa Area D Gravity Survey (P200643). A Fast Fourier Transform (FFT) process was applied to the original grid to calculate the first vertical derivative grid. This gravity survey was acquired under the project No. 200643 for the geological survey of QLD. The grid has a cell size of 0.0075 degrees (approximately 794m). A total of 4821 gravity stations were acquired to produce this grid.

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 43m) and shows thorium element concentration of the Naretha, WA, 2009 (Eucla Basin 3) in units of parts per million (or ppm). The data used to produce this grid was acquired in 2009 by the WA Government, and consisted of 124870 line-kilometres of data at 200m line spacing and 50m terrain clearance.

Digital Elevation data record the terrain height variations from the processed point- or line-located data recorded during a geophysical survey. This GSWA South Canning 2 Morris Cobb Elevation Grid Geodetic is elevation data for the Morris-Cobb, WA, 2010 (South Canning 2). This survey was acquired under the project No. 1229 for the geological survey of WA. The grid has a cell size of 0.00083 degrees (approximately 88m). This grid contains the ground elevation relative to the geoid for the Morris-Cobb, WA, 2010 (South Canning 2). It represents the vertical distance from a location on the Earth's surface to the geoid. The data are given in units of meters. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.

Digital Elevation data record the terrain height variations from the processed point- or line-located data recorded during a geophysical survey. This Duketon elevation grid geodetic is elevation data for the Duketon, WA, 1994. This survey was acquired under the project No. 613 for the geological survey of WA. The grid has a cell size of 0.00083 degrees (approximately 87m). This grid contains the ground elevation relative to the geoid for the Duketon, WA, 1994. It represents the vertical distance from a location on the Earth's surface to the geoid. The data are given in units of meters. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.

Digital Elevation data record the terrain height variations from the processed point-located data recorded during a geophysical survey. This Thomson Ellipsoid Height geodetic is elevation data for the Thomson Orogen Gravity Survey (P201041). This survey was acquired under the project No. 201041 for the geological survey of QLD. The grid has a cell size of 0.007 degrees (approximately 734m). This grid contains the ground elevation relative to the ellipsoid for the Thomson Orogen Gravity Survey (P201041). It represents the vertical distance from a location on the Earth's surface to the ellipsoid. The data are given in units of meters. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.

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 Geological Survey of South Australia commissioned the Gawler Craton Airborne Survey (GCAS) as part of the PACE Copper initiative. The airborne geophysical survey was flown over parts of the Gawler Craton in South Australia. The program was designed to capture new baseline geoscientific data to provide further information on the geological context and setting of the area for mineral systems. This radiometric potassium grid has a cell size of 0.0004 degrees (approximately 41m) and shows potassium element concentration of the Gairdner Airborne Magnetic Radiometric and DEM survey, SA, 2018 in units of percent (or %). The data used to produce this grid was acquired in 2018 by the SA Government, and consisted of 104788 line-kilometres of data at 200m line spacing and 60m terrain clearance. To constrain long wavelengths in the grid, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey grid.

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 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 terrestrial dose rate grid. This GSWA Yampi Derby North Canning 2 Doserate Grid Geodetic has a cell size of 0.00083 degrees (approximately 90m) and shows the terrestrial dose rate of the Yampi - Derby, WA, 2009 (North Canning 2). The data used to produce this grid was acquired in 2009 by the WA Government, and consisted of 68011 line-kilometres of data at 400m 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 0.00029 degrees (approximately 30m) and shows thorium element concentration of the NSW DMR, Discovery 2000 Area N, Menindee, NSW, 1999 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1999 by the NSW Government, and consisted of 41736 line-kilometres of data at 150m line spacing and 40m 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 0.00083 degrees (approximately 88m) and shows thorium element concentration of the Cooper Basin North, Qld, 2008 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2008 by the QLD Government, and consisted of 168416 line-kilometres of data at 400m line spacing and 60m terrain clearance.

Digital Elevation data record the terrain height variations from the processed point- or line-located data recorded during a geophysical survey. This GSSA Torrens Elevation laser grid geodetic is elevation data for the Torrens Airborne Magnetic Radiometric and DEM Survey, SA, 2017. This survey was acquired under the project No. 1283 for the geological survey of SA. The grid has a cell size of 0.00042 degrees (approximately 43m). This grid contains the ground elevation relative to the geoid for the Torrens Airborne Magnetic Radiometric and DEM Survey, SA, 2017. It represents the vertical distance from a location on the Earth's surface to the geoid. The data are given in units of meters. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.