GSQ Isa Georgetown Block A Qld 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 0.00042 degrees (approximately 45m) and shows potassium element concentration of the Isa-Georgetown Block A,QLD, 2000, Prospectivity Plus Initiative in units of percent (or %). The data used to produce this grid was acquired in 2000 by the QLD Government, and consisted of 34868 line-kilometres of data at a line spacing between 200m and 400m, and 80m terrain clearance.

放射性测量法，亦称伽马能谱法（gamma-ray spectrometric method），可探测地球表面附近的伽马射线自然变化，该变化源于钾（potassium, K）、铀（uranium, U）和钍（thorium, Th）的自然放射性衰变。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由地下岩石产生。经处理后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查，以确保GA发布的最终数据符合使用要求。
本放射性钾元素格网的格单元尺寸为0.00042度（约45米），展示了2000年昆士兰州（QLD）Isa-Georgetown A区块"Prospectivity Plus Initiative"项目的钾元素浓度，单位为百分比（%）。用于生成该格网的数据由昆士兰州政府（QLD Government）于2000年采集，数据总长34868线公里，测线间距介于200米至400米之间，地形离地高度为80米。