Writing in PNAS, scientists from Cologne university present important new constraints showing that plate tectonics started relatively slow, although the early Earth's interior was much hotter than today.
Earth Sciences
Dec 22, 2020
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33
The landscape of eastern Australia is dotted with hundreds of extinct volcanoes. They gave rise to an environment to which Aboriginal people have been connected for tens of thousands of years, and the rich soils upon which ...
Earth Sciences
Dec 17, 2020
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6
Our planet is unique in the solar system. It's the only one with active plate tectonics, ocean basins, continents and, as far as we know, life. But Earth in its current form is 4.5 billion years in the making; it's starkly ...
Earth Sciences
Dec 3, 2020
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7
An oceanic plateau has been observed for the first time in the Earth's lower mantle, 800 kilometers deep underneath Eastern Siberia, pushing Hawaii's birthplace back to 100 million years, says a Michigan State University ...
Earth Sciences
Nov 20, 2020
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120
The oceanic lithosphere descends into Earth's mantle as subducting slabs. Boundaries between the subducting slab and the surrounding mantle are defined as slab interfaces, whose seismic imaging is the key to understanding ...
Earth Sciences
Nov 9, 2020
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27
The existence of a tectonic plate called Resurrection has long been a topic of debate among geologists, with some arguing it was never real. Others say it subducted—moved sideways and downward—into the earth's mantle ...
Earth Sciences
Oct 20, 2020
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1668
The composition of Earth's mantle was more shaped by interactions with the oceanic crust than previously thought, according to work from Carnegie's Jonathan Tucker and Peter van Keken along with colleagues from Oxford that ...
Earth Sciences
Sep 1, 2020
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94
Geologists from Florida State University's Department of Earth, Ocean and Atmospheric Science have discovered how carbon-rich molten rock in the Earth's upper mantle might affect the movement of seismic waves.
Earth Sciences
Aug 4, 2020
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155
In a recently published paper in Earth and Planetary Science Letters, researchers from the Geodynamics Research Center, Ehime University and the University of Lille combine numerical modeling of dislocation glide and results ...
Earth Sciences
Jul 29, 2020
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7
A new study by University of Alberta physicists provides an explanation for why changes to Earth's magnetic field over time are weaker over the Pacific region—a mystery scientists have been trying to solve for nearly a ...
Earth Sciences
Jun 30, 2020
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