GSWA Complete South Yilgarn percent Potassium Merged 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 85m) and shows potassium element concentration of the Complete Southern Yilgarn merge, 2004-2005 in units of percent (or %). The data used to produce this grid was acquired in 2004 by the WA Government, and consisted of 222105 line-kilometres of data at a line spacing between 200m and 400m, and 60m terrain clearance.

放射测量法（radiometric method，又称伽马能谱法（gamma-ray spectrometric method））可检测地球表面附近的伽马射线自然变化，此类变化源于钾（K）、铀（U）及钍（Th）的天然放射性衰变。采集所得的数据将通过标准化流程开展处理，以确保记录的辐射响应仅来自地下岩石。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校验，以确保GA发布的最终数据符合使用要求。
本放射测量钾元素栅格数据的像元大小为0.00083度（约85米），展示了2004-2005年完整南伊尔贡合并数据集的钾元素浓度，单位为百分比（%）。本栅格数据所用的原始数据由西澳大利亚州政府（WA Government）于2004年采集，总覆盖测线长度达222105线公里，测线间距介于200米至400米之间，飞行离地高度为60米。