BHP Melinda Downs, 1993 Gravity Survey, Qld (P199399), 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 BHP Melinda Downs, 1993 Gravity Survey, Qld (P199399) contains a total of 265 point data values acquired at a spacing of 100 metres. The data is located in QLD and were acquired in 1993, under project No. 199399 for BHP Group Ltd.

重力数据用于测量地球表层下方岩石密度变化所引发的微小重力场变化。所采集的数据将通过标准化方法进行处理，以确保所记录的响应仅由地下岩石引发。经处理后生成的数据集可通过解译，用以揭示地下地质构造。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。本次必和必拓（BHP）1993年梅尔琳达当斯重力测量项目（昆士兰州，编号P199399）共计采集265个测点数据，测点间距为100米。该数据集的采集点位位于昆士兰州，采集工作于1993年完成，隶属于必和必拓集团（BHP Group Ltd）的199399号项目。