Contract Helicopter Gravity (P196610), 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 Contract Helicopter Gravity (P196610) contains a total of 3933 point data values acquired at a spacing between 4000 and 14000 metres. The data is located in QLD and were acquired in 1966, under project No. 196610 for Bureau of Mineral Resources (BMR).

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变化。所采集的数据将经由标准流程处理，以确保记录得到的响应仅源于地下岩石。经处理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查，以确保GA发布的最终数据符合使用要求。本合同直升机航空重力数据集（编号P196610）共计包含3933个测点数据，测点间距介于4000米至14000米之间。该数据集采集于昆士兰州（QLD），采集时间为1966年，由矿产资源局（Bureau of Mineral Resources, BMR）依托编号196610的项目完成采集。