Sale Onshore ppm thorium grid geodeticg

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 thorium grid has a cell size of 0.00042 degrees (approximately 41m) and shows thorium element concentration of the Gippsland Basin (Onshore), Vic,1998 (GSV3167) in units of parts per million (or ppm). The data used to produce this grid was acquired in 1998 by the VIC Government, and consisted of 11071 line-kilometres of data at 200m line spacing and 80m terrain clearance.

放射性测量法（radiometric method），亦称伽马射线能谱法（gamma-ray spectrometric method），通过探测地球表面附近的伽马射线自然变化，来反映由钾（K）、铀（U）和钍（Th）天然放射性衰变产生的辐射信号。所采集的数据将采用标准化流程进行处理，以确保记录的响应信号仅源自地下岩石的辐射。经处理得到的数据集可通过解译，揭示地下地质构造特征。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。本放射性钍格网的单元尺寸为0.00042度（约41米），展示了1998年维多利亚州陆上吉普斯兰盆地（GSV3167）的钍元素浓度分布，单位为百万分率（parts per million，ppm）。用于制作该格网的数据由VIC政府于1998年采集，总测线长度达11071线千米，测线间距为200米，飞行离地高度为80米。