Magnetometry

Magnetometry measures spatial variations in Earth's magnetic field to reveal the distribution of magnetic minerals in the subsurface. These variations help identify geological structures, lithological boundaries, and zones of hydrothermal alteration associated with mineralization.

In TerraEye, magnetometry layers are derived from the EMAG2 v3 global magnetic anomaly grid — a compilation of satellite, airborne, and marine survey data at 2 arc-minute resolution. For North America and Australia, higher-resolution regional models are also available.

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To start working with Magnetometry results, see How to Use the Magnetometry Layer.