Isa-Georgetown Block C,QLD, 2000, Prospectivity Plus Initiative (P828), radiometric line data, AWAGS levelled

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 Isa-Georgetown Block C,QLD, 2000, Prospectivity Plus Initiative (P828), radiometric line data, AWAGS levelled were acquired in 2000 by the QLD Government, and consisted of 45601 line-kilometres of data at a line spacing between 200m and 400m, and 80m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS.

放射性测量法，亦称伽马能谱法，通过探测地球表面附近的伽马射线自然变化，获取由钾（K）、铀（U）与钍（Th）天然放射性衰变产生的辐射信号。所采集的数据将通过标准流程进行处理，以确保记录到的响应仅源自地下岩石的辐射。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要求。本数据集为2000年由昆士兰州（QLD）政府采集的艾萨-乔治敦区块C（Isa-Georgetown Block C, QLD）2000年远景增强计划（Prospectivity Plus Initiative, P828）放射性测线数据，该数据已按全澳航空地球物理调查（Airborne Geophysical Survey, AWAGS）标准完成平差校准，测线总长度达45601线公里，线间距介于200米至400米之间，地形离地高度为80米。为约束数据中的长波长分量，研究人员采用独立数据集——全澳航空地球物理调查（AWAGS）航空磁测数据——来管控本次调查数据的基准水平。本次调查数据实质上已校准至AWAGS基准。