Deep Earth Structures Influence Magnetic Field
Analysis based on 8 articles · First reported Feb 03, 2026 · Last updated Feb 05, 2026
This scientific discovery has no direct or immediate impact on financial markets. It contributes to fundamental understanding of Earth's processes, which may indirectly influence long-term resource exploration or climate modeling, but not in a way that affects current market sentiment.
Scientists led by the University of Liverpool, in collaboration with the University of Leeds, have uncovered magnetic evidence that two immense, ultra-hot rock structures located at the base of Earth's mantle, beneath Africa and the Pacific, affect the underlying liquid outer core. Published in Nature Geoscience, the study, led by Professor Andy Biggin, combined palaeomagnetic observations with advanced computer simulations of the geodynamo. The findings suggest strong temperature contrasts in the rocky mantle above the core, influencing the flow of liquid iron and shaping Earth's magnetic field for millions of years. This challenges previous assumptions about the uniformity of the core-mantle boundary and the behavior of Earth's magnetic field over long periods, with implications for understanding ancient continental configurations, climate, palaeobiology, and natural resource formation.
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