GSQ Cloncurry Uranium grid geodetic
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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 uranium grid has a cell size of 0.00018 degrees (approximately 19m) and shows uranium element concentration of the Isa Region Airborne Magnetic Radiometric and DEM Survey, QLD, 2017 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2017 by the QLD Government, and consisted of 113387 line-kilometres of data at a line spacing between 50m and 100m, and 50m terrain clearance.
放射性测量法(或称伽马能谱法)通过探测地球表面附近的伽马射线自然变化,来反映由钾(K)、铀(U)和钍(Th)自然放射性衰变产生的信号。采集所得数据将通过标准流程进行处理,确保记录的响应仅源于地下岩石。该处理结果可生成数据集,通过解译这些数据集能够揭示地下地质构造。GA地球物理学家会对处理后的数据开展质量检查,以确保GA发布的最终数据符合使用要求。 本次发布的放射性铀元素格网单元尺寸为0.00018度(约19米),展示了2017年昆士兰州(QLD)艾萨地区航空磁法放射性测量与数字高程模型(DEM)调查中的铀元素浓度,单位为百万分率(ppm)。用于生成该格网的数据由昆士兰州政府于2017年采集,总数据长度达113387线公里,线间距介于50米至100米之间,地形离地高度为50米。



