Duketon potassium 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 potassium grid has a cell size of 0.00083 degrees (approximately 87m) and shows potassium element concentration of the Duketon, WA, 1994 in units of percent (or %). The data used to produce this grid was acquired in 1994 by the WA Government, and consisted of 47160 line-kilometres of data at 400m line spacing and 80m terrain clearance.放射测量法（又称伽马射线能谱法）通过探测地表附近的伽马射线自然变化量，来反映钾（K）、铀（U）与钍（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化流程进行处理，以确保记录的响应仅源自地下岩石的辐射。经处理后得到的数据集可通过解译，揭示地下地质构造特征。经处理的数据将由GA地球物理学家开展质量核查，以确保GA发布的最终数据符合使用要求。本放射测量钾元素网格的单元尺寸为0.00083度（约合87米），展示了1994年西澳大利亚州（WA）达基顿（Duketon）区域的钾元素浓度，单位为百分比（%）。本网格所使用的数据由西澳大利亚州政府于1994年采集，总测线长度达47160线千米，测线间距为400米，飞行离地高度为80米。