Buchanan, NT, 2002 - company3 2 (P1023), 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 Buchanan, NT, 2002 - company3 2 (P1023), radiometric line data were acquired in 2002 by the NT Government, and consisted of 175073 line-kilometres of data at 400m line spacing and 80m terrain clearance.

放射性测量法（radiometric method，又称伽马能谱法（gamma-ray spectrometric method））通过检测地球表面附近的伽马射线自然变化，表征由钾（K）、铀（U）与钍（Th）的天然放射性衰变所产生的辐射信号特征。所采集的数据将通过标准化流程进行处理，以确保记录的响应仅来源于地下岩石的辐射。经处理后得到的数据集可通过解译，揭示地下地质构造特征。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发布的最终数据符合使用需求。本次数据集为2002年澳大利亚北领地（NT）巴彻勒（Buchanan）区域的company3 2（P1023）号放射性测线数据，由NT政府于2002年采集完成，总测线长度达175073线公里，线间距为400米，作业离地高度为80米。