Darling Basin(Milparinka,Urisino),NSW, 1981 (P472), 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 (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 Darling Basin(Milparinka,Urisino),NSW, 1981 (P472), radiometric line data were acquired in 1981 by the NSW Government, and consisted of 15669 line-kilometres of data at 3000m line spacing and 150m terrain clearance.

放射性测量法（radiometric method），亦称伽马射线能谱法（gamma-ray spectrometric method），可探测地球表面附近的伽马射线自然变化，该信号源于钾（K）、铀（U）与钍（Th）的自然放射性衰变。所采集的数据将通过标准流程处理，以确保记录的响应仅由地下岩石产生。经处理得到的数据集可通过解译揭示地下地质构造。经处理的数据将由GA地球物理学家开展质量核查，以确保GA发布的最终数据满足实际使用需求。本次数据集为1981年采集的达令盆地（米尔帕林加（Milparinka）、尤里西诺（Urisino））、新南威尔士州（New South Wales，NSW）放射性测线数据（编号P472），由新南威尔士州政府于1981年完成采集，总测线长度达15669千米，测线间距为3000米，地形离地高度为150米。