Erabaru.net. Some scientists believe that fragments of Planet Theia may have lodged in the Earth’s mantle since the collision 4.5 billion years ago.
An alien planet could be “hidden in the center of the Earth,” claims one study.
Experts think that a planet called Theia that may have collided with Earth could have left debris in the interior of our planet.
Some scientists thought the same impact in space formed the Moon, but now they have studied specific traces of the impact buried deep in the Earth’s mantle.
Qian Yuan, a geologist at Arizona State University in the US, argues that the mysterious solid spot in the interior of our planet is a specific part of Theia that is still intact on Earth.
In a paper presented at the Lunar and Planetary Science Conference, Yuan and his team explain: “Here, we show that Theia’s mantle may be several% intrinsically denser than Earth’s mantle, allowing Theia’s mantle material to sink into Earth’s lower mantle and accumulate to become thermochemical piles that can lead to seismic (solid area) observations. “
Yuan then said: “This crazy idea is at least possible.”
Scientists identified specific parts of Earth’s interior where pieces of Theia could still nest.
The theory that Theia collided with Earth is known as the giant collision hypothesis.
It is said that Theia collided with the early Earth about 4.5 billion years ago.
Scientists who subscribe to the theory say and explain about the existence of the Moon and why our planet’s core is larger than expected for its size.
Scientists believe that the solid material Theia could remain intact for billions of years as a function of how the Earth’s mantle works.
These materials are so dense that they sink and never drift back into the convection zone.
An area “the size of a continent” is a large part of Earth’s interior, and understanding how they form and how they survive can help drive advances in earth science.
Two major parts lie beneath West Africa and the Pacific Ocean and are hundreds of miles thick.
Sumber: dailystar
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