Curnamona 20m cell uranium grid geodetic

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 radiometric uranium grid has a cell size of 0.00021 degrees (approximately 21m) and shows uranium element concentration of the Curnamona, SA, Broken Hill Exploration Initiative, 1995 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1995 by the SA Government, and consisted of 62542 line-kilometres of data at a line spacing between 100m and 400m, and 60m terrain clearance.

辐射测量法（radiometric method），亦称伽马射线能谱法，可检测地表附近因钾（K）、铀（U）与钍（Th）自然放射性衰变产生的伽马射线自然变化。所采集的数据将通过标准流程进行处理，确保记录的响应仅源自地下岩石。处理后得到的数据集可用于解译，以揭示地下地质构造。经处理的数据将由GA地球物理学家开展质量核验，确保GA发布的最终数据符合使用要求。
本次发布的铀元素辐射测量网格单元格尺寸为0.00021度（约21米），展示了1995年布罗肯希尔勘探计划在南澳大利亚州（SA，South Australia）库纳莫纳（Curnamona）地区获取的铀元素浓度分布，单位为百万分之一（ppm）。用于生成该网格的数据由南澳州政府于1995年采集，总测线长度达62542测线公里，测线间距介于100米至400米之间，飞行离地高度为60米。