Barkly Tablelands Gravity Survey, 2009, NT (P200980), 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 Barkly Tablelands Gravity Survey, 2009, NT (P200980) contains a total of 9736 point data values acquired at a spacing of 4000 metres. The data is located in NT and were acquired in 2009, under project No. 200980 for Northern Territory of Australia (Northern Territory Geological Survey).

重力数据可表征地球表层下方岩石密度变化引发的微小重力场变化。所采集的数据将通过标准流程进行处理，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。该数据经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。本次2009年北领地（Northern Territory，NT）巴克利台地重力测量项目（编号P200980）共包含9736个测点数据，测点间距为4000米。该数据采集于北领地，采集时间为2009年，隶属于澳大利亚北领地地质调查局（Northern Territory Geological Survey）牵头实施的编号为200980的项目。