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    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 SA Gravity Survey 2005A3 (P200553) contains a total of 844 point data values acquired at a spacing between 50 and 100 metres. The data is located in SA and were acquired in 2005, under project No. 200553 for None.

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    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 Paterson Central doserate grid geodetic has a cell size of 0.00083 degrees (approximately 89m) and shows the terrestrial dose rate of the Paterson Central, WA, 2005. The data used to produce this grid was acquired in 2005 by the WA Government, and consisted of 94391 line-kilometres of data at 400m line spacing and 60m terrain clearance.

  • Categories  

    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 Devils Creek Doserate Grid Geodetic has a cell size of 0.00083 degrees (approximately 84m) and shows the terrestrial dose rate of the Devil's Creek, WA, 1999. The data used to produce this grid was acquired in 1999 by the WA Government, and consisted of 3935 line-kilometres of data at 300m line spacing and 70m terrain clearance.

  • Categories  

    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 Virginia Fault - SADM Detailed Gravity (P196769) contains a total of 322 point data values acquired at a spacing between 30 and 100 metres. The data is located in SA and were acquired in 1967, under project No. 196769 for Department of Mines and Energy South Australia (SADME).

  • Categories  

    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 Toongabbie-Seaton Gravity (P195701) contains a total of 285 point data values acquired at a spacing between 100 and 500 metres. The data is located in VIC and were acquired in 1957, under project No. 195701 for State Electricity Commission of Victoria.

  • Categories  

    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 Mornington Peninsula Gravity (P195809) contains a total of 102 point data values acquired at a spacing between 1000 and 5000 metres. The data is located in VIC and were acquired in 1958, under project No. 195809 for Bureau of Mineral Resources (BMR).

  • Categories  

    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 Brennock Park-Warburton-Walhalla Gravity (P195902) contains a total of 38 point data values acquired at a spacing of 5000 metres. The data is located in VIC and were acquired in 1959, under project No. 195902 for None.

  • Categories  

    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 NT Tanumbirini Dose Rate Grid geodetic has a cell size of 0.00083 degrees (approximately 91m) and shows the terrestrial dose rate of the Tanumbirini-Broadmere-Velkerri merge, 1983-2007. 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.

  • Categories  

    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 uranium grid has a cell size of 0.00042 degrees (approximately 44m) and shows uranium element concentration of the Rason-Throssel merge, 1991-1998 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1991 by the WA Government, and consisted of 107758 line-kilometres of data at a line spacing between 200m and 400m, and 60m terrain clearance.

  • Categories  

    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 Southwest Western Australia Helicopter Gravity (P196911) contains a total of 3049 point data values acquired at a spacing of 11000 metres. The data is located in WA and were acquired in 1969, under project No. 196911 for Bureau of Mineral Resources (BMR).