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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Researchers at Ehime University have recently measured the propagation speed of ultrasonic waves in an aluminum-rich hydrous mineral called Al-phase D at pressure conditions relevant to the Earth's deep mantle. Their results ...
Earth Sciences
Dec 1, 2020
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Decades after two large earthquakes rocked the Mojave Desert in California, the discovery of new post-earthquake displacement features has prompted KAUST researchers to update the existing model for this earthquake-prone ...
Earth Sciences
Nov 27, 2020
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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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In a study that gives new meaning to the term "rock bottom," seismic researchers have discovered the underside of a rocky slab of Earth's surface layer, or lithosphere, that has been pulled more than 400 miles beneath northeastern ...
Earth Sciences
Nov 16, 2020
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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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International research led by geologists from Curtin University has found that a volcanic province in the Indian Ocean was the world's most continuously active—erupting for 30 million years—fuelled by a constantly moving ...
Earth Sciences
Nov 4, 2020
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Current understanding is that the chemical composition of the Earth's mantle is relatively homogeneous. But experiments conducted by ETH researchers now show that this view is too simplistic. Their results solve a key problem ...
Earth Sciences
Oct 21, 2020
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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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New geologic findings about the makeup of the Earth's mantle are helping scientists better understand long-term climate stability and even how seismic waves move through the planet's layers.
Earth Sciences
Sep 10, 2020
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