Kingoonya - dose rate no nasvd grid (AWAGS)

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. The total dose rate is due to natural sources of radiation and is computed by adding estimates of cosmic dose at ground level to the terrestrial dose. The terrestrial dose rate grid is derived as a linear combination of the filtered K, U and Th grids. A low pass filter is applied to this grid to generate the filtered total dose rate grid.
The Geological Survey of South Australia commissioned the Gawler Craton Airborne Survey (GCAS) as part of the PACE Copper initiative. The airborne geophysical survey was flown over parts of the Gawler Craton in South Australia. The program was designed to capture new baseline geoscientific data to provide further information on the geological context and setting of the area for mineral systems.

This Kingoonya - dose rate no nasvd grid (AWAGS) has a cell size of 0.0004 degrees (approximately 41m) and shows the total dose rate of the Kingoonya Airborne Magnetic Radiometric and DEM survey, SA, 2018 survey. The data used to produce this grid was acquired in 2018 by the SA Government, and consisted of 149477 line-kilometres of data at 200m line spacing and 60m terrain clearance.

放射性测量法，又称伽马射线能谱法，可探测地球表面附近测得的伽马射线自然变化，该变化源于钾（K）、铀（U）及钍（Th）的自然放射性衰变。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由地下岩石产生。处理后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发布的最终数据符合使用要求。总剂量率源自天然辐射源，其计算方式为将地面宇宙剂量估算值与陆地剂量求和。陆地剂量率网格由滤波后的钾、铀、钍网格经线性组合生成。对该网格应用低通滤波器后，即可得到滤波后的总剂量率网格。
南澳大利亚地质调查局委托开展高勒克拉通航空测量（Gawler Craton Airborne Survey, GCAS），作为PACE铜矿计划的组成部分。本次航空地球物理测量覆盖了南澳大利亚境内高勒克拉通的部分区域。该项目旨在获取全新的基准地球科学数据，为该区域成矿系统的地质背景与成矿环境提供更多参考信息。
本金库尼亚（Kingoonya）非NASVD剂量率网格（AWAGS）的网格单元尺寸为0.0004度（约41米），展示了2018年南澳大利亚金库尼亚航空磁测-放射性测量与数字高程模型（DEM）测量的总剂量率分布。用于生成该网格的数据由南澳大利亚州政府于2018年采集，涵盖149477线公里的测量数据，测线间距为200米，飞行离地高度为60米。