Babylonian bricks provide clues to ancient Earth’s magnetic field

A recent study has uncovered that clay bricks utilized in construction projects by ancient kings have preserved a historical “map” documenting fluctuations in the Earth’s magnetic field.

Approximately 3,000 years ago, for reasons not fully comprehended, there was a sudden and significant increase in the Earth’s magnetic field strength in what is now modern Iraq.

This magnetic shift was effectively recorded in the bricks of cities across Iron Age Babylonia, offering a tangible historical account of transient changes in the Earth’s magnetic field, The Hill reported.

The research team conducted an analysis of the latent magnetic imprints within grains of iron oxide minerals present in 32 clay bricks sourced from archaeological sites across Mesopotamia, now corresponding to modern-day Iraq.

READ MORE: https://thehill.com/policy/equilibrium-sustainability/4365939-ancient-mesopotamia-bricks-earth-magnetic-field-dating-study/

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