The Granites Mt Solitaire Highland Rocks Mt Theo total count grid

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. The terrestrial dose rate grid is derived as a linear combination of the filtered K, U and Th grids. A low pass filter is applied to this grid to generate the filtered terrestrial dose rate grid.This The Granites Mt Solitaire Highland Rocks Mt Theo total count grid has a cell size of 0.001 degrees (approximately 100m) and shows the terrestrial dose rate of the The Granites, Mt Solitaire, Highland Rocks, Mt Theo, NT, 1993. The data used to produce this grid was acquired in 1993 by the NT Government, and consisted of 108984 line-kilometres of data at 500m line spacing and 90m terrain clearance.

放射性（伽马能谱）测量法通过采集地表附近的伽马射线自然变异数据，以反映钾（K）、铀（U）及钍（Th）的天然放射性衰变所产生的辐射响应。所采集的数据将通过标准流程进行预处理，确保记录的响应仅源自地下岩石的辐射。经处理后得到的数据集可用于解译，以揭示地下地质构造。经预处理的数据将由GA地球物理学家开展质量校验，确保GA发布的最终数据符合使用需求。陆地剂量率网格通过滤波后的钾、铀、钍网格的线性组合得到，随后对该网格施加低通滤波处理，以生成滤波后的陆地剂量率网格。格兰尼特斯（The Granites）、索利泰尔山（Mt Solitaire）、高地岩石区（Highland Rocks）及西奥山（Mt Theo）总计数网格的单元格尺寸为0.001度（约100米），展示了1993年北领地（NT）上述区域的陆地剂量率分布。用于生成该网格的数据由北领地（NT）政府于1993年采集，总测线长度达108984线公里，测线间距为500米，地形离地高度为90米。