Grampian Seismic Lines Gravity (P199735), 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 Grampian Seismic Lines Gravity (P199735) contains a total of 294 point data values acquired at a spacing of 240 metres. The data is located in VIC and were acquired in 1997, under project No. 199735 for Geological Survey of Victoria (GSV).

重力数据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动。所采集的重力数据将通过标准化流程进行处理，以确保记录的重力响应仅由地下岩石引起。经处理得到的数据集可通过解译，揭示地下地质构造。处理完成的数据会由GA地球物理学家开展质量核查，以确保GA发布的最终数据符合使用要求。本格兰皮安地震测线重力数据集（P199735）共包含294个测点数据，测点间距为240米。该数据集采集于维多利亚州（VIC），于1997年由维多利亚地质调查局（Geological Survey of Victoria，GSV）依托编号为199735的项目完成采集。