GSWA Eucla Basin 6 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 0.00042 degrees (approximately 43m) and shows uranium element concentration of the Eucla Coast, WA, 2009 (Eucla Basin 6) in units of parts per million (or ppm). The data used to produce this grid was acquired in 2009 by the WA Government, and consisted of 122145 line-kilometres of data at a line spacing between 200m and 400m, and 50m terrain clearance.

辐射测量法（radiometric method），又称伽马射线能谱法（gamma-ray spectrometric method），可测定地球表面附近探测到的伽马射线自然变化量，该变化源自钾（K）、铀（U）和钍（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来自地下岩石。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验，以确保GA发布的最终数据符合使用要求。
本次辐射测量铀网格的单元尺寸为0.00042度（约合43米），展示的是2009年西澳大利亚州（WA）尤克拉海岸（Eucla Basin 6）的铀元素浓度，单位为百万分率（parts per million，简称ppm）。用于生成该网格的数据由西澳大利亚州政府（WA Government）于2009年采集，总数据量达122145线公里，测线间距介于200米至400米之间，飞行离地高度为50米。