GSQ East Isa North percent 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 0.00083 degrees (approximately 89m) and shows potassium element concentration of the East Mount Isa - North, Qld, 2007 in units of percent (or %). The data used to produce this grid was acquired in 2007 by the QLD Government, and consisted of 112910 line-kilometres of data at 400m line spacing and 80m terrain clearance.

放射性测量法（radiometric method），亦称伽马能谱法（gamma-ray spectrometric method），可探测地表附近的伽马射线自然波动，该波动由钾（K）、铀（U）与钍（Th）的天然放射性衰变产生。所采集的数据将通过标准化流程进行处理，以确保记录到的响应仅源于地下岩石。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发布的最终数据满足使用要求。本放射性测量钾元素栅格数据的栅格单元尺寸为0.00083度（约89米），展示了2007年昆士兰州（Qld）北伊萨山东部区域的钾元素浓度，单位为百分比（%）。本栅格数据所用的原始数据由昆士兰州政府（QLD Government）于2007年采集，总测线覆盖长度达112910线公里，测线间距为400米，飞行离地高度为80米。