Edjudina 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 87m) and shows uranium element concentration of the Edjudina, WA, 1984, 1988/89 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1984 by the WA Government, and consisted of 52720 line-kilometres of data at 400m line spacing and 100m terrain clearance.

放射性测量法（radiometric method），亦称伽马能谱法（gamma-ray spectrometric method），通过探测地表附近的伽马射线自然波动，以反映钾（K）、铀（U）及钍（Th）的自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处理，确保记录的辐射响应仅由地下岩石产生。经处理得到的数据集可通过解译，揭示地下地质构造。处理后的数据将由GA地球物理学家开展质量核验，以确保GA发布的最终数据符合使用要求。
本放射性铀元素网格的单元尺寸为0.00083度（约87米），展示了1984年、1988/1989年西澳大利亚州（WA）埃迪吉纳（Edjudina）区域的铀元素浓度，单位为百万分之一（ppm）。用于生成该网格的数据由西澳大利亚州政府于1984年采集，总数据覆盖长度达52720线公里，测线间距为400米，飞行离地高度为100米。