According to the hypothesis of Theia ‘s Great Impact or Influence, the lunar eclipse created an ejecta colliding between Earth and a protoplanet called Theia about 4.5 billion years ago.
A team of scientists recently suggested that the Earth’s heart could bury fragments of Theia.
Theories related to what happened to the rest of Theia are still debated. In this new study, scientists suggest that much of Theia’s mantle will awaken in the Earth’s crust, creating what are now known as the far-flung continents, LLSVPs – one under parts of the African continent and one under the Pacific Ocean.
These two blobs are up to 1000 kilometers high and several times as wide. Seismic waves from earthquakes suddenly become slower as they pass through the layers. It means that the blobs are relatively dense and chemically distinct from the surrounding healthy rock.
Theia’s costume was more dense than Earth’s clothing. Gradually none of the fragments he made reached the healthy heart of the Earth.
Scientists built a model to find out what could have happened if there had been an accident with a planet the size of Mars or even bigger. The model shows the Earth as it was 4.5 billion years ago. He suggests that, after the beating, Theia’s heart would have merged quickly with the Earth’s heart. Over billions of years, the cookies converge, forming the LLSVPs.
Jennifer Jenkins, a seismologist at Durham University, said, “If the remnants of Theia lie deep in the Earth’s garment, they may not be alone. Increasingly seismologists are seeing small, ultradense pockets of material in the deep mantle, just a few hundred kilometers across, often near the edges of the RSVPs. It is probably the remnants of iron-rich coracles from other small planets that struck Earth early. “
Magazine Information:
- Q. Yuan et al. A major impact source for the large shear speed continents.