GSNSW Exploration NSW Area U Southern Peel potassium 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 potassium grid has a cell size of 0.00048 degrees (approximately 50m) and shows potassium element concentration of the NSW DMR, Discovery 2000, AREA U, SOUTHERN PEEL, NSW 2001 in units of percent (or %). The data used to produce this grid was acquired in 2001 by the NSW Government, and consisted of 31584 line-kilometres of data at 250m line spacing and 80m terrain clearance.

放射性测量法（radiometric method，又称伽马射线能谱法）可检测地球表面附近的伽马射线自然波动，该波动源于钾（K）、铀（U）与钍（Th）的天然放射性衰变。所采集的数据将通过标准化流程进行处理，以确保记录的响应仅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。经处理的数据将由GA地球物理学家开展质量核验，以确保GA发布的最终数据符合使用要求。本次的放射性钾元素网格（radiometric potassium grid）像元大小为0.00048度（约50米），展示了新南威尔士州（NSW）DMR、Discovery 2000、AREA U、SOUTHERN PEEL及NSW 2001号区域的钾元素浓度，单位为百分比（%）。本网格所用数据由新南威尔士州政府于2001年采集，测线总里程达31584千米，测线间距为250米，地形离地高度为80米。