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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. This radiometric thorium grid has a cell size of 0.004 degrees (approximately 430m) and shows thorium element concentration of the Canning Basin (Gordon Downs, Billiluna, Lucas, Stansmore), WA, 1980 survey. The data used to produce this grid was acquired in 1980 by the WA Government, and consisted of 57126 line-kilometres of data at 1500m line spacing and 150m 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 0.001 degrees (approximately 110m) and shows thorium element concentration of the Georgina, NT, 2002 survey. The data used to produce this grid was acquired in 2002 by the NT Government, and consisted of 91100 line-kilometres of data at 400m line spacing and 80m 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 0.000833 degrees (approximately 90m) and shows potassium element concentration of the Yowalga Sub-Basin, WA, 1995-1996 survey. The data used to produce this grid was acquired in 1996 by the WA Government, and consisted of 87431 line-kilometres of data at 500m line spacing and 80m 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 0.001 degrees (approximately 100m) and shows potassium element concentration of the SA Exploration Initiative 1994 - Area B9 survey. The data used to produce this grid was acquired in 1994 by the SA Government, and consisted of 29442 line-kilometres of data at 400m line spacing and 85m 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 0.004 degrees (approximately 430m) and shows potassium element concentration of the Canning Basin (Charnley, Lennard R, Noonkanbah, Crossland), WA, 1989 survey. The data used to produce this grid was acquired in 1989 by the WA Government, and consisted of 51022 line-kilometres of data at 1500m line spacing and 150m 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 uranium grid has a cell size of 0.000833 degrees (approximately 90m) and shows uranium element concentration of the Balladonia - Zanthus, WA, 2008 survey. The data used to produce this grid was acquired in 2009 by the WA Government, and consisted of 43948 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 potassium grid has a cell size of 0.000833 degrees (approximately 90m) and shows potassium element concentration of the Normanton, Qld, 2008 survey. The data used to produce this grid was acquired in 2008 by the Qld Government, and consisted of 114487 line-kilometres of data at 400m line spacing and 80m 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 0.000417 degrees (approximately 40m) and shows potassium element concentration of the Sandstone (Woodley, Sandstone), WA, 1996 survey. The data used to produce this grid was acquired in 1996 by the WA Government, and consisted of UNKNOWN line-kilometres of data at 200m 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 uranium grid has a cell size of 0.000208 degrees (approximately 20m) and shows uranium element concentration of the Arthur-Pieman Area, NW Tasmania, TAS, 1996 survey. The data used to produce this grid was acquired in 1996 by the TAS Government, and consisted of 17093 line-kilometres of data at 100m line spacing and 90m 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 0.001 degrees (approximately 100m) and shows thorium element concentration of the SA Exploration Initiative - Area C, (C1, C3) SA, 1993 survey. The data used to produce this grid was acquired in 1993 by the SA Government, and consisted of 43926 line-kilometres of data at 400m line spacing and 80m terrain clearance.