GSQ Mt Isa Southeast 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 88m) and shows uranium element concentration of the Mount Isa South East, Qld, 2006 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2006 by the QLD Government, and consisted of 100960 line-kilometres of data at 400m line spacing and 80m 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，量化钾（K）、铀（U）及钍（Th）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流程进行预处理，以确保记录的响应信号仅由地下岩石的辐射产生。经处理得到的数据集可通过解译，揭示地下地质构造特征。经处理后的数据将由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需求。本铀元素放射性测量网格的网格单元尺寸为0.00083度（约合88米），展示了2006年昆士兰州（QLD）东南部芒特艾萨地区的铀元素浓度，单位为百万分率（ppm）。本网格所用数据由昆士兰州政府于2006年采集完成，总测线长度达100960公里，测线间距为400米，地形离地高度为80米。