Menindee NW (Thackaringa Redan) 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 Menindee NW,(Thackaringa,Redan), Broken Hill Explor. Init,NSW,1995 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1995 by the NSW Government, and consisted of 55233 line-kilometres of data at a line spacing between 100m and 200m, and 60m terrain clearance.

辐射测量法，亦称伽马射线能谱法（gamma-ray spectrometric method），可探测地表附近的伽马射线自然变化，该信号源自钾（K）、铀（U）与钍（Th）的天然放射性衰变。所采集的数据将经标准流程处理，以确保所记录的信号仅由地下岩石产生。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发布的最终数据符合使用要求。
本次发布的辐射测量铀元素网格数据单元尺寸为0.00021度（约21米），展示的是1995年新南威尔士州（NSW）门因迪西北（Thackaringa、Redan区域、布罗肯希尔勘探计划区）的铀元素浓度，单位为百万分比（ppm）。用于生成该网格的数据由新南威尔士州政府于1995年采集，总测线长度达55233线公里，测线间距为100米至200米，采集时的离地高度为60米。