Late Permian core-surface-magnetosphere conditions revealed by single crystal paleointensities from the Emeishan large igneous province
A new study of the Emeishan large igneous province reveals that the Earth's geomagnetic intensity dropped significantly during the Late Permian period. While this decline in the magnetic field was substantial, researchers concluded it was not severe enough to cause the ozone depletion often linked to mass extinctions.
Why it matters
Understanding historical geomagnetic fluctuations helps scientists better model the Earth's core dynamics and the environmental conditions surrounding ancient mass extinction events.
Nature Communications ( 2026 ) Cite this article
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