Yamarna Surveys (P199669), 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 Yamarna Surveys (P199669) contains a total of 1533 point data values acquired at a spacing between 1000 and 2000 metres. The data is located in WA and were acquired in 1996, under project No. 199669 for WMC Resources Ltd.

重力数据用于监测地球表层下方岩石密度变化引发的微小重力场变化。采集所得的原始数据将通过标准化流程进行处理，确保记录的重力响应仅由地下岩石引起。经处理生成的数据集可通过解译揭示地下地质构造。GA地球物理学家将对处理后的数据开展质量核查，以确保GA发布的最终数据适配实际使用需求。本次雅马纳（Yamarna）勘测项目（编号P199669）共包含1533组测点数据，测点间距介于1000米至2000米之间。该数据集采集于西澳大利亚州（Western Australia，缩写WA），相关工作于1996年由WMC资源有限公司（WMC Resources Ltd）依托编号为199669的项目完成。