Leigh Creek Detailed Gravity (P196164), 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 Leigh Creek Detailed Gravity (P196164) contains a total of 140 point data values acquired at a spacing of 800 metres. The data is located in SA and were acquired in 1961, under project No. 196164 for Department of Mines and Energy South Australia (SADME).

重力数据用于量化地球表层下方岩石密度变化所引发的微小重力场变化。所采集的原始数据将通过标准流程开展处理，以确保记录得到的重力响应仅由地下岩石的影响所致。经处理得到的数据集可通过地质解译，用以揭示地下地质构造。该处理后的数据将由GA地球物理学家开展质量核验，以保障GA发布的最终重力数据符合使用要求。本次利溪详细重力数据集（P196164）共计包含140个测点数据，测点布设间距为800米。该数据集的采集区域位于南澳大利亚州（South Australia，简称SA），采集工作于1961年完成，隶属于南澳大利亚州矿产与能源部（SADME）的第196164号项目。