The rapid development of fauna 540 million years ago has permanently changed the Earth—deep into its lower mantle. A team led by ETH researcher Andrea Giuliani found traces of this development in rocks from this zone.
Earth Sciences
Mar 07, 2022
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1294
The high temperatures and pressures of the Earth's mantle forge carbon-rich minerals known as carbonates into diamond. But less is known about the fate of carbonates that travel even deeper underground—depths from which ...
Earth Sciences
Mar 24, 2021
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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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1180
If we took a journey from Earth's surface to the center, the midway point is roughly at 1900 km depth in the lower mantle. The lower mantle ranges from 660 to 2900 km depth and occupies 55% of our planet by volume. The chemical ...
Earth Sciences
May 22, 2020
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11
Earth's molten core may be leaking iron, according to researchers who analyzed how iron behaves inside our planet.
Earth Sciences
Apr 13, 2020
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4333
Simulating the conditions 2,700 kilometers deep underground, scientists have studied an important transformation of the most abundant mineral on Earth, bridgmanite. The results from the Extreme Conditions Beamline at DESY's ...
Earth Sciences
Dec 17, 2019
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124
Every school child learns about the water cycle—evaporation, condensation, precipitation, and collection. But what if there were a deep Earth component of this process happening on geologic timescales that makes our planet ...
Earth Sciences
Dec 17, 2019
2
151
Professor Eiji Ohtani from Tohoku University, Japan, summarized the content, distribution and effect of water in the Earth's mantle, published in National Science Review.
Earth Sciences
Jul 10, 2019
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4
As ancient ocean floors plunge over 1,000 km into the Earth's deep interior, they cause hot rock in the lower mantle to flow much more dynamically than previously thought, finds a new UCL-led study.
Earth Sciences
Mar 25, 2019
1
127
Most schoolchildren learn that the Earth has three (or four) layers: a crust, mantle and core, which is sometimes subdivided into an inner and outer core. That's not wrong, but it does leave out several other layers that ...
Earth Sciences
Feb 14, 2019
14
1261
