Cobar Helicopter Gravity (P198834), 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 Cobar Helicopter Gravity (P198834) contains a total of 627 point data values acquired at a spacing between 1275 and 6000 metres. The data is located in NSW and were acquired in 1988, under project No. 198834 for Department of Mines (New South Wales).

重力数据用于监测地球表层下方岩石密度变化所引发的微小重力场变化。所采集的重力数据均通过标准处理流程进行加工，以确保记录得到的重力响应仅由地下岩石产生。经处理后得到的数据集可通过解译揭示地下地质构造。经处理的数据需由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要求。本科巴直升机重力测量数据集（P198834）共包含627个测点数据，测点间距介于1275至6000米之间。该数据集采集于新南威尔士州（NSW），采集时间为1988年，隶属于新南威尔士州矿产部编号为198834的项目。