Mt Isa B Gravity Complete Bouguer Anomaly

Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. 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 Mt Isa B Gravity Complete Bouguer Anomaly is a complete Bouguer anomaly grid for the Mt Isa 2006, Area B (P200641). This gravity survey was acquired under the project No. 200641 for the geological survey of QLD. The grid has a cell size of 0.0041 degrees (approximately 400m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 9857 gravity stations were acquired to produce this grid.

重力数据用于测量地球表层下方岩石密度变化所引发的微小重力场变化。所采集的数据将通过标准流程处理，以确保记录的响应仅源于地下岩石的影响。处理所得数据集可通过解译，用以揭示地下地质构造。经处理的数据将由GA地球物理学家进行质量核验，以确保GA发布的最终数据符合使用要求。本次的芒特艾萨B区重力完全布格异常（Complete Bouguer Anomaly）数据集，是针对2006年芒特艾萨B区域（P200641）构建的完整布格异常网格数据。本次重力测量工作系为昆士兰州（QLD）地质调查项目（项目编号：200641）开展。该网格的单元尺寸为0.0041度（约合400米）。数据单位为微米每二次方秒（μm/s²），亦被称为"重力单位（gravity units，gu）"。本次网格的构建共依托9857个重力测点完成。