blobs

2 giant blobs in Earth’s mantle may explain Africa’s weird geology

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Deep within Earth’s mantle, there are two giant blobs. One sits under Africa, while the other is almost precisely opposite the first, under the Pacific Ocean. But these two blobs are not evenly matched.  New research finds that the blob under Africa extends far closer to the surface — and is more unstable — than … Read more

Geologists Have Closely Analyzed Two Bizarre ‘Blobs’ Detected Deep Inside Earth

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Earth’s interior is not a uniform stack of layers. Deep in its thick middle layer lie two colossal blobs of thermo-chemical material. To this day, scientists still don’t know where both of these colossal structures came from or why they have such different heights, but a new set of geodynamic models has landed on a possible answer … Read more