Laverton, WA 1992 (P587), 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 Laverton, WA 1992 (P587), radiometric line data, AWAGS levelled were acquired in 1992 by the WA Government, and consisted of 10225 line-kilometres of data at 400m line spacing and 60m 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伽马射线的自然变化，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，确保记录的响应仅源于地下岩石。处理结果生成的数据集经解译后，可揭示地下地质构造。经处理的数据由GA地球物理学家进行质量检查，以确保GA发布的最终数据符合预期用途。
这套1992年西澳大利亚州拉弗顿地区（P587）的经澳大利亚全国航空地球物理调查（AWAGS）校正的放射性测线数据，由西澳大利亚州政府于1992年采集，包含10225测线公里的数据，测线间距400米，地形净空高度60米。为抑制数据中的长波成分，研究采用了独立数据集——澳大利亚全国航空地球物理调查（AWAGS）的航空磁测数据——来控制本次调查数据的基准面。本次调查数据本质上已校正至AWAGS基准。