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rad

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  • 80% coverage south margin missing 22-1/J55-10/5 Vertical scale: 300

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  • 75% coverage south 22-3/D53-5/5-5 Vertical scale: 100

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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 Yalgoo Doserate Grid Geodetic has a cell size of 0.00021 degrees (approximately 22m) and shows the terrestrial dose rate of the Yalgoo, WA, 2014. The data used to produce this grid was acquired in 2015 by the WA Government, and consisted of 126967 line-kilometres of data at a line spacing between 100m and 200m, and 50m 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 potassium grid has a cell size of 0.00042 degrees (approximately 43m) and shows potassium element concentration of the Coompana, SA, 2015 in units of percent (or %). The data used to produce this grid was acquired in 2015 by the SA Government, and consisted of 286817 line-kilometres of data at a line spacing between 200m and 400m, and 80m terrain clearance.

  • The George Creek Uranium Prospect is located 80 miles from Darwin and 9 miles from Adelaide River southwards along the Stuart Highway. It is situated on the side of a hill a few hundred feet west of the highway. The regional geology was mapped by field parties of the Bureau of Mineral Resources during 1954, and will be shown on the Burnside (West) 1-mile sheet. At the prospect, geological and structural investigation is in progress. A radiometric grid survey of the George Creek Prospect was carried out during the week ending 22nd October, 1954.

  • Report on the activities of the administrative and technical sections in the Katherine-Darwin area, to June, 1954. A brief account is given of geological and geophysical operations. The results of prospecting and development work are summarised.

  • Report on the activities of the administrative and technical sections in the Katherine-Darwin area, to July, 1954. A brief account is given of geological and geophysical operations. The results of prospecting and development work are summarised.

  • This report is an account of geological and geophysical investigations of the Burrundie Radioactive Prospect, which is located three and a half miles west-south-west of Burrundie Siding on the North Australian Railway.