Broken Hill Detail 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 Broken Hill N.S.W, 1994 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1994 by the NSW Government, and consisted of 56310 line-kilometres of data at a line spacing between 100m and 400m, and 60m terrain clearance.

放射测量法（或称伽马射线能谱法）通过探测地表附近的伽马射线自然变化，来反映钾（K）、铀（U）和钍（Th）的天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流程进行处理，以确保记录的响应仅来自地下岩石。经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地球物理学家进行质量核查，以确保GA发布的最终数据符合使用要求。
本次放射测量铀格网的像元大小为0.00021度（约21米），展示了1994年新南威尔士州布罗肯希尔地区的铀元素浓度，单位为百万分比（ppm）。用于生成该格网的数据由新南威尔士州政府于1994年采集，包含56310线公里的实测数据，测线间距介于100米至400米之间，离地高度为60米。