Two huge structures lie deep in the Earth, more or less on opposite sides of the planet. The two structures, each continent-sized and 100 times higher than Mount Everest, sit in the core, 1,800 miles deep, and about halfway to the center of the Earth.
These structures are made of something different from the rest of the mantle of the Earth.(Megastructures)
“While the origin and composition of structures are still unknown, we suspect they have important clues about how the Earth formed and how it works today,” said Garneno from Arizona State University.
These structures are found on opposite sides of our planet. One of the structures lies below the Pacific Ocean, the other is below the Atlantic Ocean.(Megastructures)
Some researchers refer to these as “thermochemical stacks”, and for years it has been thought that these structures were composed of mantle materials.
According to the research, the structures contain materials that were pushed down by the tectonics of the place and could even have been made from the remains of our planet’s formation almost 4.5 billion years ago.(Megastructures)
“Although their origin and composition are still unknown, we suspect they contain important clues about how the Earth formed and how it functions today,” said Edward Garnero of the Arizona State University’s School of Earth and Space Exploration.
According to the researchers, there is still much to learn from the mysterious structures, but new data show that these structures are much denser than the surrounding mantle materials.
With expected research in the region, the team predicts that the mysterious origins will soon be revealed.(Megastructures)
The discovery of these structures has been published in the journal Nature Geoscience .