Rason Throssel combined percent 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 0.00042 degrees (approximately 44m) and shows potassium element concentration of the Rason-Throssel merge, 1991-1998 in units of percent (or %). The data used to produce this grid was acquired in 1991 by the WA Government, and consisted of 107758 line-kilometres of data at a line spacing between 200m and 400m, and 60m 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变化，反映钾（K）、铀（U）与钍（Th）的天然放射性衰变产生的辐射信号。所采集的数据将通过标准化流程进行处理，以确保记录的辐射响应仅源自地下岩石。经处理得到的数据集可通过解译揭示地下地质构造。经处理的数据将由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要求。
本放射性钾元素网格的单元格尺寸为0.00042度（约合44米），展示了1991年至1998年Rason-Throssel合并区域的钾元素浓度，单位为百分比（%）。本网格所用数据由西澳政府（WA Government）于1991年采集，累计测线长度达107758线公里，测线间距为200米至400米，航高为60米。