Scientists cannot reach Earth's core-mantle boundary 2,900 kilometers below the surface, so they study the region using seismic waves recorded during earthquakes. A team used deep learning to analyze a large set of a specific type of seismic wave and published the findings in the journal JGR Solid Earth.
The analysis revealed six continuous bands of irregularities at the core-mantle boundary that had previously appeared only as sparse patches. The deep learning approach enabled researchers to identify these structures across a much larger dataset than traditional methods would have allowed.
