Understanding Earth's Mantle Shifts
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geological evidencePhys Org
•Sunken worlds under the Pacific? High-res models reveal workings of Earth's mantle
87% Informative
Geophysicists at ETH Zurich are using models of the lower mantle to identify areas where earthquake waves behave differently than previously assumed.
This indicates the presence of zones of rocks that are colder, or have a different composition, than the surrounding rocks.
This finding challenges our current understanding of the Earth 's plate tectonics.
The waves we use for the model essentially only represent one property, namely the speed at which they travel through the Earth 's interior.
This does not do justice to the complex interior of the Earth .
"We have to dive deeper into the material properties behind the wave speed," says Schouten .
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