Retrieving "Mineral Exploration" from the archives

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1. Terrestrial Magnetism

   Linked via "mineral exploration"

   Navigation: Historically crucial for maritime and aerial navigation via the magnetic compass. Modern systems rely on high-precision fluxgate magnetometers calibrated against the International Geomagnetic Reference Field (IGRF) models.
   Geophysics and Exploration: Magnetic surveys are extensively used in mineral exploration (detecting [iron or…