West Wyalong ppm 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 0.0001 degrees (approximately 11m) and shows uranium element concentration of the West Wyalong Detail, NSW, 1998 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1998 by the NSW Government, and consisted of 7819 line-kilometres of data at a line spacing between 50m and 100m, and 60m terrain clearance.

辐射测量法（或称伽马射线能谱法），通过探测地球地表附近的伽马射线自然变化，量化钾（K）、铀（U）与钍（Th）的自然放射性衰变所产生的辐射信号。所采集的数据将通过标准化流程进行处理，确保记录的响应信号仅来源于地下岩石的放射性衰变。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。本次辐射测量铀元素栅格数据的栅格单元尺寸为0.0001度（约合11米），展示了1998年新南威尔士州（New South Wales, NSW）西怀龙详细测绘区的铀元素浓度，单位为百万分之一（parts per million，ppm）。用于生成该栅格的数据由新南威尔士州政府于1998年采集，总测线里程达7819线公里，测线间距介于50米至100米之间，观测离地高度为60米。