University of Alabama finds widespread ancient seafloor at Earth’s core-mantle boundary
Updated
Updated · The Brighter Side of News · Apr 30
University of Alabama finds widespread ancient seafloor at Earth’s core-mantle boundary
10 articles · Updated · The Brighter Side of News · Apr 30
Using 227 Antarctic-recorded Southern Hemisphere earthquakes, the Science Advances study found robust ULVZ evidence in 152 of 183 filtered events nearly 2,000 miles underground.
Researchers say these 5-to-50km-thick zones likely formed from subducted oceanic crust and sediments spreading along the boundary, rather than isolated patches or solely heat-driven melting.
The structures, described as core-boundary “mountains” up to 25 miles high, could affect heat flow from the core, Earth’s magnetic field and the chemistry of mantle plumes.
How do mountains of ancient seafloor at Earth's core steer our planet's magnetic field and volcanic activity?
Are the mountains on Earth's core truly sunken oceans or relics from our planet's violent birth?