MRTAS Norfolk Range 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, uranium and thorium. The data are collected on airborne geophysical surveys conducted by Commonwealth, State & NT Governments and the private sector.

放射性测量法（伽马能谱法）可通过检测地球表面附近的伽马射线自然变化，表征钾、铀和钍的天然放射性衰变过程。本数据集的相关数据由澳大利亚联邦、各州及北领地政府与私营部门开展的航空地球物理勘探项目采集。