Gravity Survey (P197467), 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 Gravity Survey (P197467) contains a total of 72 point data values acquired at a spacing of 350 metres. The data is located in SA and were acquired in 1974, under project No. 197467 for None.

重力数据用于监测地球表面下方岩石密度变化引发的微小重力场变化。所采集的重力数据均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的影响。经处理得到的数据集可通过地质解译，揭示地下地质结构。经处理后的重力数据会由GA地球物理学家开展质量核查，以确保GA发布的最终数据集符合应用要求。本次重力测量（P197467）共包含72个测点数据，采集间距为350米。该数据集的采集区域为南澳大利亚州（SA），于1974年依托编号197467的项目完成采集，委托方信息未明确。