Brisbane Absolute AFGN Survey (P200691), gravity point data

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 Brisbane Absolute AFGN Survey (P200691) contains a total of 3 point data values acquired at a spacing of 7500 metres. The data is located in QLD and were acquired in 2006, under project No. 200691 for Geoscience Australia.

重力数据可用于表征地球表层下方岩石密度变化引发的微小重力场扰动。所采集的原始数据将通过标准化流程开展处理，以确保记录得到的响应仅来源于地下岩石介质。经处理得到的数据集可通过解译，用以揭示地下地质构造。经处理后的数据将由澳大利亚地质调查局（Geoscience Australia，下称GA）的地球物理学家进行质量核查，以确保GA发布的最终数据满足使用要求。本次布里斯班绝对基准重力网（AFGN）测量项目（编号P200691）共收录3组测点数据，测点间距为7500米。该数据采集于昆士兰州（QLD），采集时间为2006年，隶属于澳大利亚地质调查局编号为200691的项目。