Weird structures near Earth’s core may be scars from a primordial interplanetary collision

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New research suggests that a group of mysterious, ultra-dense structures just outside the Earth’s core may be the remnants of ancient interplanetary collisions.

These strange structures are known as ultra-slow zones (ULVZ) because they are generated by seismic waves. earthquake Move these zones about 50% slower than the surrounding mantle. This means that ULVZ is much denser than other mantles and is probably made of heavier elements.

Weird structures near Earth’s core may be scars from a primordial interplanetary collision Source link Weird structures near Earth’s core may be scars from a primordial interplanetary collision

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