Magnetic Field
Simulations indicate that two massive hot rock blobs near Earth's core have played a role in generating and shaping its magnetic field, making it irregular over millions of years. Researchers analyzed ancient volcanic rocks and ran models to reach this conclusion. The findings suggest these blobs created uneven heat flow that affected the field's symmetry.
Raportoinut AI
Researchers have identified two massive hot rock formations at the base of Earth's mantle that have influenced the planet's magnetic field for millions of years. Located about 2,900 kilometers beneath Africa and the Pacific Ocean, these structures create uneven heat at the core-mantle boundary. The discovery, based on ancient magnetic data and simulations, reveals variations in magnetic stability over vast timescales.