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Researchers from The University of Alabama discovered a dense layer of ancient ocean floor, or ultra-low velocity zone (ULVZ), between Earth's core and mantle using seismic imaging. These underground "mountains" could play a key role in heat escape from the core and the planet's magnetic field. T
Seismic waves from earthquakes in the Southern Hemisphere sample ULVZ structure along Earth's CMB and are recorded by sensors in Antarctica. Credit:
Ondas sísmicas de terremotos no Hemisfério Sul amostram a estrutura ULVZ ao longo do CMB da Terra e são registradas por sensores na Antártida. Crédito:
A layer between Earth's mantle and core—approximately 2,000 miles underground— likely dense and thin, submerged under the ocean floor has been identified using large-scale seismic imaging, according to a new study published in Science Advances, on April 5.
Through global-scale seismic imaging of Earth’s interior, research led by The University of Alabama revealed a layer between the core and the mantle that is likely a dense, yet thin, sunk ocean floor, according to results published today in Science Advances.