Tasmania Detailed Grid Survey (P199479), 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 Tasmania Detailed Grid Survey (P199479) contains a total of 350 point data values acquired at a spacing between 40 and 2000 metres. The data is located in TAS and were acquired in 1994, under project No. 199479 for None.

重力数据用于测量地球表面下方岩石密度变化所引发的微小重力变化。采集所得数据将采用标准方法进行处理，以确保所记录的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。经处理的数据将由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需求。本次塔斯马尼亚详细网格测量项目（P199479）共包含350组测点数据，测点间距介于40米至2000米之间。该数据的采集区域位于塔斯马尼亚州（TAS），采集工作于1994年开展，隶属于编号199479的项目，委托方信息无记录。