Robert 1991 WA radiometric line data

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，亦称伽马射线能谱法（gamma-ray spectrometric method））可对地球表面附近探测到的伽马射线的天然波动进行定量测定，该波动由钾、铀、钍的自然放射性衰变所引发。
本数据集由联邦政府、各州及北领地政府与私营部门开展的航空地球物理调查采集所得。