A New Billion-Year History of Earth’s Interior Reveals Colossal ‘Blobs’ Merging and Breaking Apart Like Continents
Deep in the Earth beneath us lie two blobs the size of continents. One is under Africa, the other under the Pacific Ocean. The blobs have their roots 2,900 kilometers below the surface, almost halfway to the center of the Earth. They are thought to be the birthplace of rising columns of hot rock called […]