Part 6/8:

This revelation stemmed from sophisticated high-resolution modeling aided by a supercomputer, which allowed scientists to analyze varying seismic waves prompted by earthquakes, revealing deeper structures within the Earth. Since direct drilling into the planet’s mantle is unfeasible, geophysicists rely on models to hypothesize the nature of these tectonic remnants. Speculations range from ancient silica-rich materials formed billions of years ago to areas of iron-rich rock accumulating over time due to mantle dynamics.