 Magnetic survey (archaeology)

A magnetic survey in archaeology is a non-invasive geophysical method used to detect and map archaeological features buried beneath the ground by measuring variations in the Earth's magnetic field. This technique is particularly effective for identifying structures such as walls, hearths, ditches, and other features that have been altered or disturbed by human activity. ### How it Works: 1. **Magnetic Field Measurement**: Archaeologists use magnetometers to measure the magnetic field intensity at various points on the ground surface.