Geoscientists have used earthquakes to study the composition of the lower portion of the Earth’s mantle under the Pacific Ocean – and they've discovered something quite peculiar. There are zones where the seismic waves move in different ways,

Unexpected mantle structures hint at ancient or unknown materials, challenging current tectonic theories and prompting deeper research. No one can see inside the Earth or drill deep enough to collect rock samples from the mantle—the layer between Earth’s core and its outermost rigid layer,

A team of geophysicists at ETH Zurich in Switzerland has made a baffling discovery while analyzing earthquake waves to calculate the internal structures of the Earth. They found areas in our planet's interior that appear to be the leftovers of submerged tectonic plates deep below large oceans and far away from plate boundaries — nowhere near where scientists expected to find them.

New research reveals a “major mystery” deep beneath the planet’s bodies of water and crust, and now experts are rethinking what they know about Earth’s terrain. They suggest it could even mean “a lost world” under the sea.

Mystery Structures Present Under the Pacific Ocean Baffle Scientists, Unsure What These Are Made up Of Researchers have continued to study what lies beneath the Earth's crust for a long time. They have made some fascinating discoveries after examining the lower portion of the planet's mantle under the Pacific Ocean.