Flinders Island rad

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（radiometric method），又称伽马能谱法（gamma-ray spectrometric method），可通过检测地球表面附近的伽马射线自然变化，表征钾、铀与钍的自然放射性衰变过程。本次数据集的采集工作由英联邦、各州及北领地政府与私营部门开展的航空地球物理调查完成。