Kidson AreaB ppm uranium grid geodetic

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 0.00083 degrees (approximately 89m) and shows uranium element concentration of the Kidson Areas A & B, WA, 1996 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1996 by the WA Government, and consisted of 128005 line-kilometres of data at 400m line spacing and 60m terrain clearance.

放射性测量法（radiometric method），又称伽马能谱法（gamma-ray spectrometric method），通过检测地球表面附近的伽马射线自然变化，以此反映钾（K）、铀（U）及钍（Th）的天然放射性衰变所产生的辐射信号。所采集的数据将通过标准流程进行预处理，确保记录的响应信号仅来源于地下岩石的放射性衰变。经处理后得到的数据集可通过解译，用于揭示地下地质构造。预处理后的数据将由地质调查局（GA）地球物理学家开展质量校验，以确保GA发布的最终数据符合使用需求。本放射性铀元素网格的栅格单元尺寸为0.00083度（约合89米），展示了1996年西澳大利亚州（WA）基德森A区与B区的铀元素浓度分布，单位为百万分率（parts per million，ppm）。用于生成该网格的数据由西澳大利亚州政府于1996年采集，总测线长度达128005线公里，测线间距为400米，飞行离地高度为60米。