University of Maryland geophysicists analyzed thousands of recordings of seismic waves, sound waves traveling through the Earth, to identify echoes from the boundary between Earth's molten core and the solid mantle layer ...
Earth Sciences
Jun 11, 2020
26
21679
New research on oxygen and iron chemistry under the extreme conditions found deep inside the Earth could explain a longstanding seismic mystery called ultralow velocity zones. Published in Nature, the findings could have ...
Earth Sciences
Nov 22, 2017
3
139
Yale researchers are delving deep beneath the Himalayas to investigate dynamic geological processes near the boundary of Earth's core and mantle.
Earth Sciences
Mar 27, 2024
0
93
Just as snow crystals form in the upper atmosphere, then fall to lower, warmer elevations and melt, scientists believe a phenomenon called iron snow happens in the molten iron cores of some planetary bodies. Cooling near ...
Planetary Sciences
Jan 3, 2024
0
53
A few decades ago, seismologists imaging the deep planet identified a thin layer, just over a few hundred kilometers thick. The origin of this layer, known as the E prime layer, has been a mystery—until now.
Earth Sciences
Nov 14, 2023
0
1450
For four years, NASA's InSight lander recorded tremors on Mars with its seismometer. Researchers at ETH Zurich collected and analyzed the data transmitted to Earth to determine the planet's internal structure. "Although the ...
Planetary Sciences
Oct 25, 2023
0
3487
Two geoscientists, one with Princeton University, the other with Guangzhou Institute of Geochemistry, have developed a theory to explain how helium-3 leaks from the Earth's core into the mantle. In their study, reported in ...
Through global-scale seismic imaging of Earth's interior, research led by The University of Alabama revealed a layer between the core and the mantle that is likely a dense, yet thin, sunk ocean floor, according to results ...
Earth Sciences
Apr 5, 2023
2
888
The Earth's mantle makes up about 85% of the Earth's volume and is made of solid rock. But exactly what rock types is the mantle made of, and how are they distributed throughout the mantle? An international team of researchers—including ...
Earth Sciences
Nov 30, 2022
0
72
A planet's interior heat comes from two principal sources: leftover energy amassed from collisions between planetesimals during the accretion of the planet and the subsequent decay of radioactive elements embedded within ...
Earth Sciences
Sep 1, 2022
0
30
