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 potassium grid has a cell size of 0.00083 degrees (approximately 85m) and shows potassium element concentration of the Complete Southern Yilgarn merge, 2004-2005 in units of percent (or %). The data used to produce this grid was acquired in 2004 by the WA Government, and consisted of 222105 line-kilometres of data at a line spacing between 200m and 400m, 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 potassium grid has a cell size of 0.00083 degrees (approximately 91m) and shows potassium element concentration of the Tanumbirini-Broadmere-Velkerri merge, 1983-2007 in units of percent (or %). The data used to produce this grid was acquired in 1983 by the NT Government, and consisted of 56185 line-kilometres of data at a line spacing between 300m and 500m, and 80m 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 Mt Isa B Gravity Complete Bouguer Anomaly is a complete Bouguer anomaly grid for the Mt Isa 2006, Area B (P200641). This gravity survey was acquired under the project No. 200641 for the geological survey of QLD. The grid has a cell size of 0.0041 degrees (approximately 400m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 9857 gravity stations were acquired to produce this grid.

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 C Gravity Bouguer Anomaly is a complete Bouguer anomaly grid for the Mt Isa Area C, 2006 (P200642). This gravity survey was acquired under the project No. 200642 for the geological survey of QLD. The grid has a cell size of 0.0037 degrees (approximately 395m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 9046 gravity stations were acquired to produce this grid.

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 C Gravity Complete Bouguer Anomaly is a complete Bouguer anomaly grid for the Mt Isa Area C, 2006 (P200642). This gravity survey was acquired under the project No. 200642 for the geological survey of QLD. The grid has a cell size of 0.0037 degrees (approximately 395m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 9046 gravity stations were acquired to produce this grid.

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 geodetic is a complete Bouguer anomaly grid for the Mt Isa Area D Gravity Survey (P200643). 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). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 4821 gravity stations were acquired to produce this grid.

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 E Gravity Complete Bouguer Anomaly 1VD geodetic is a complete Bouguer anomaly grid for the Mt Isa Area E Gravity Survey (P200644). 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. 200644 for the geological survey of QLD. The grid has a cell size of 0.0075 degrees (approximately 802m). A total of 6123 gravity stations were acquired to produce this grid.