Grid Gravity Survey SA 91A1 (P199150), 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 Grid Gravity Survey SA 91A1 (P199150) contains a total of 1646 point data values acquired at a spacing between 100 and 200 metres. The data is located in SA and were acquired in 1991, under project No. 199150 for None.

重力数据用于监测地球表面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开展处理，以确保记录得到的响应仅源于地下岩石。经处理得到的数据集可通过解译，揭示地下地质构造。经处理的数据会由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。本次网格重力测量项目SA 91A1（编号P199150）共包含1646个测点数据，测点间距介于100米至200米之间。该数据集的采集区域位于南澳大利亚州（SA），于1991年完成采集，隶属于编号为199150的项目，委托方信息未标注。