Scientists Uncover Origin of Mysterious Earth Layer
Originally Published 1 year ago — by Newsweek
Geoscientists have potentially solved the mystery of the D" layer, a molten rock layer deep within the Earth, suggesting it was formed by a collision with a Mars-sized planet billions of years ago. This impact created a magma ocean, where unique chemical reactions led to the formation of an iron-rich phase called iron-magnesium peroxide, explaining the layer's seismic heterogeneity and varying thickness.