Northwest Tasmania Gravity Survey, 2008 (P200852), 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 Northwest Tasmania Gravity Survey, 2008 (P200852) contains a total of 221 point data values acquired at a spacing of 1000 metres. The data is located in TAS and were acquired in 2008, under project No. 200852 for Mineral Resources Tasmania (MRT).

重力数据用于表征地球表层下方岩石密度变化所引发的微小重力场扰动。所采集的原始重力数据均通过标准化流程处理，以确保记录所得的响应仅由地下岩石引起。经处理得到的数据集可通过地质解译，揭示地下地质构造特征。经处理的数据将由GA地球物理学家开展质量核验，以保障GA发布的最终数据符合应用要求。本次2008年塔斯马尼亚西北部重力测量项目（编号P200852）共获取221组测点数据，测点布设间距为1000米。该数据采集区域位于塔斯马尼亚州（TAS），采集工作于2008年完成，隶属于塔斯马尼亚矿产资源部（Mineral Resources Tasmania, MRT）编号为200852的项目。