East Mount Isa - South, Qld, 2007 (P1145), radiometric line data, AWAGS levelled

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 East Mount Isa - South, Qld, 2007 (P1145), radiometric line data, AWAGS levelled were acquired in 2006 by the QLD Government, and consisted of 144776 line-kilometres of data at 400m line spacing and 80m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS.

放射性测量法（或称伽马能谱测量法）通过检测地球表面附近的伽马射线自然变化，反映钾（K）、铀（U）和钍（Th）的自然放射性衰变过程。采集的数据经标准方法处理，确保记录的响应仅来源于地下岩石。处理结果生成的数据集可通过解译揭示地下地质结构。处理后的数据由GA地球物理学家进行质量检查，确保GA发布的最终数据符合预期用途。
这套2007年昆士兰州东芒特艾萨南部（P1145）经全澳航空地球物理调查（AWAGS）校正的放射性测线数据，由昆士兰州政府（QLD Government）于2006年采集，包含144776测线公里的数据，测线间距为400米，地形净空高度为80米。为抑制数据中的长波长干扰，研究采用独立的全澳航空地球物理调查（AWAGS）航空磁测数据控制本调查数据的基准面。本调查数据本质上已校正至AWAGS基准。