Two Giant Structures Hidden Under Africa Have Scientists Searching for Answers

  • تاريخ النشر: منذ يوم زمن القراءة: دقيقة قراءة

Two enormous deep-mantle structures may hold recycled crust, ancient material, or even remnants of Theia.

Only One Structure Is Actually Beneath Africa

They Sit at the Bottom of Earth’s Mantle

Each One Is Larger Than a Continent

Earthquake Waves Revealed Their Existence

Heat Explains Only Part of the Slowdown

The Two Structures May Not Be Twins

The Pacific Structure Contains Younger Recycled Crust

The African Structure Appears Older and Better Mixed

They Could Contain Remains of an Ancient Planet

The Answer Could Change How We Understand Earth

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