Coompana Gravity Survey (P201750), 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 Coompana Gravity Survey (P201750) contains a total of 13795 point data values acquired at a spacing between 500 and 2000 metres. The data is located in SA and were acquired in 2017, under project No. 201750 for Geological Survey of South Australia.

重力数据用于测量地球表层下方岩石密度变化引发的微小重力场变化。所采集的原始数据将通过标准化处理流程开展加工，确保记录得到的重力响应仅由地下岩石的物性变化产生。经处理得到的数据集可通过地质解译，揭示地下区域的地质构造特征。经处理后的数据将由南澳地质调查局（Geological Survey of South Australia，简称GA）的地球物理学家开展质量核查，以确保该局发布的最终数据符合实际使用需求。本次库姆帕纳重力测量项目（Coompana Gravity Survey，项目编号P201750）共包含13795个测点数据，测点间距介于500米至2000米之间。该数据集的采集区域位于南澳大利亚州，数据采集工作于2017年完成，对应项目编号为201750，由南澳地质调查局牵头实施。