HALUANKALBAR.COM – Earthquakes can turn out to be research material to find out secrets related to the layers of the earth. In fact, there is molten rock in the interior that surrounds the bowels of the earth.
A new study by University of Chicago scientists suggests that there is a surprising layer of molten rock surrounding Earth. This molten rock is found in the lower part of the upper mantle.
The Earth’s mantle is a layer of silicate rock between the crust and the outer core. The mantle is 2,900 kilometers thick, which makes up about 84 percent of Earth’s volume.
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This finding was made when researchers measured the movement left behind after an earthquake in the Pacific Ocean near the Republic of Fiji.
The records obtained from the GPS sensor are a new method for measuring the fluidity of the Earth’s mantle.
“Even though the mantle makes up the bulk of the Earth, there is still a lot we don’t know about it,” said the researcher and geophysicist at University of ChicagoSunyoung Park, quoted from HaluanKalbar.com Science Daily on Thursday, 23 February 2023.
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Scientists must use clues from the motion of seismic waves to infer the various layers that make up Earth, including the crust, mantle, and core.
But until now, scientists are still constrained to measure the thickness of the Earth’s mantle. The mantle is the layer beneath the earth’s crust.
The mantle is made of rock, where the intense temperature and pressure at a certain depth, the rock actually becomes viscous. Then it flows very slowly like honey or tar.
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“We want to know exactly how fast the mantle is flowing, because it affects the evolution of the whole Earth,” he said.
“Also to find out how much heat the planet retains for how long, and how Earth’s materials are recycled over time,” explained Park.
