Ashton magnetic grid

Total magnetic intensity data measures variations in the intensity of the Earth's magnetic filed caused by the contrasting content of rock-forming minerals in the Earth's crust. The data are collected on airborne geophysical surveys conducted by Commonwealth, State & NT Governments and the private sector.

总磁场强度数据用于表征地壳内造岩矿物含量差异所引发的地球磁场强度变化。该数据集由联邦、各州及北领地政府与私营部门开展的航空地球物理调查采集获得。