GSNSW Exploration NSW Area N Menindee 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 0.00029 degrees (approximately 30m) and shows uranium element concentration of the NSW DMR, Discovery 2000 Area N, Menindee, NSW, 1999 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1999 by the NSW Government, and consisted of 41736 line-kilometres of data at 150m line spacing and 40m terrain clearance.放射性伽马能谱测量法可检测地球表面附近的伽马射线自然变化，该变化源于钾（K）、铀（U）及钍（Th）的天然放射性衰变。所采集的数据将通过标准流程进行预处理，以确保记录的辐射响应仅由地下岩石产生。经处理得到的数据集可通过解译，揭示地下地质构造特征。经处理的数据将由GA地球物理学家开展质量校验，以确保GA发布的最终数据符合使用要求。 本放射性铀元素格网的像元尺寸为0.00029度（约30米），展示了1999年澳大利亚新南威尔士州（NSW）梅宁迪地区NSW DMR管辖的Discovery 2000 N区域的铀元素浓度，单位为百万分率（ppm）。本格网所用数据由新南威尔士州政府于1999年采集，总测线长度达41736测线公里，测线间距为150米，观测离地高度为40米。