Unsustainable irrigation and drought have emptied nearly all of the Aral Sea’s water since the 1960s, causing changes extending all the way down to Earth’s upper mantle, the layer beneath the planet’s ...
Water may have been shaping Earth’s deep interior far earlier than many geologists thought. In rocks more than 3 billion years old from Western Australia, a research team found chemical signs that ...
On present-day Earth, plate subduction continuously modifies the chemical composition of the convecting mantle, and various mantle sources linked to these processes have been widely studied. However, ...
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Yellowstone’s supervolcano may be powered by a 'mantle wind,' not the deep plume long assumed
A peer-reviewed study published in Science argues that Yellowstone’s volcanic system owes its heat and magma not to a deep ...
A new study from a University of Chicago scientist suggests there may be a layer of surprisingly fluid rock ringing the Earth, at the very bottom of the upper mantle. The finding was made by measuring ...
The upper mantle plays a central role in Earth’s dynamic evolution, acting as both a conveyor of tectonic plates and a reservoir for geochemical processes. Seismologists probe this region using body ...
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