Colossal ‘Anomalies’ in Earth’s Mantle Aren’t What We Thought

Colossal 'Anomalies' in Earth's Mantle Aren't What We Thought

Source: ScienceAlert

Deep below Earth's surface lie two gigantic structures with mysterious origins.

Deep below Earth's surface lie two gigantic structures with mysterious origins. Now, seismologists have found new clues about their composition that could upend our understanding of the whole planet's geology.
In the 1980s, seismic data revealed the … [4009 chars]

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