This GSWA Pingaring potassium grid geodetic is an airborne-derived radiometric potassium window countrate grid for the Pingaring, WA,1993 survey. 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 GSWA Pingaring potassium grid geodetic radiometric potassium window countrate grid has a cell size of 0.00083 degrees (approximately 85m). The data are in units of counts per second (cps). The data used to produce this grid was acquired in 1993 by the WA Government, and consisted of 7622 line-kilometres of data at 400m line spacing and 60m terrain clearance.

This GSWA Holleton North totalcount grid geodetic is an airborne-derived radiometric total count window countrate grid for the Holleton North, WA, 1997 survey. 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 total count (K), total count (U) and total count (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 GSWA Holleton North totalcount grid geodetic has a cell size of 0.001 degrees (approximately 103m). The data are in units of counts per second (cps). The data used to produce this grid was acquired in 1997 by the WA Government, and consisted of 4255 line-kilometres of data at 400m line spacing and 40m terrain clearance.

This GSWA Hyden North thorium grid geodetic is an airborne-derived radiometric thorium window countrate grid for the Hyden North, WA, 1997 survey. 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 thorium (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 GSWA Hyden North thorium grid geodetic has a cell size of 0.001 degrees (approximately 102m). The data are in units of counts per second (or cps). The data used to produce this grid was acquired in 1997 by the WA Government, and consisted of 5209 line-kilometres of data at 400m line spacing and 40m terrain clearance.

This GSV Heathcote Vic pot tho ura totg 4band radiometric grid geodetic is an airborne-derived radiometric Potassium, Thorium and Uranium data over a sun shaded total count radiometric data for the Heathcote, Vic, 1988 (GSV0360). 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 uranium (K), uranium (U) and uranium (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 GSV Heathcote Vic pot tho ura totg 4band radiometric grid geodetic has a cell size of 0.0005 degrees (approximately 50m). The data used to produce this grid was acquired in 1988 by the VIC Government, and consisted of 3040 line-kilometres of data at 200m line spacing and 70m terrain clearance. The grid was produced by applying the colours red to the Potassium ground concentration, green to the Thorium concentration and blue to the Uranium concentration. The colours were clipped to a 99% linear scale. These colours were transparent over a shaded Total Count. This clipping will necessarily introduce some artefacts into the ratio grids in areas of very low radioelement concentrations. The 3-band image was superposed on the sun shaded TC grid of the same survey to produce the final image.

This GSQ Charters Towers Clermont total count grid geodetic is an airborne-derived radiometric total count window countrate grid for the Charters Towers-Clermont merge, 1987-1989 survey. 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 total count (K), total count (U) and total count (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 GSQ Charters Towers Clermont total count grid geodetic has a cell size of 0.00083 degrees (approximately 89m). The data are in units of counts per second (cps). The data used to produce this grid was acquired in 1987 by the QLD Government, and consisted of 40255 line-kilometres of data at 400m line spacing and 60m terrain clearance.