Hamley Seismic, Gravity, Seismic Refraction Survey (P196731), 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 Hamley Seismic, Gravity, Seismic Refraction Survey (P196731) contains a total of 521 point data values acquired at a spacing of 804 metres. The data is located in SA and were acquired in 1967, under project No. 196731 for Associated Australian Oilfields NL.

重力数据（Gravity data）用于测量地球表层下方岩石密度变化所引发的微小重力变化。所采集的数据将通过标准处理流程进行加工，以确保所记录的响应信号仅源于地下岩石。经处理后得到的数据集可通过解译，揭示地下地质构造。经处理的数据将由GA地球物理学家开展质量核验，以确保GA发布的最终数据满足使用需求。本哈姆利地震、重力及地震折射测量项目（P196731）共包含521组测点数据，采集间距为804米。该数据集的采集区域位于南澳大利亚州（SA），于1967年在Associated Australian Oilfields NL委托的第196731号项目下完成采集。