Deep carbon cycling at subduction zones affects the long-term habitability of Earth's surface by regulating atmospheric CO2 concentrations. How the carbon is transferred from the slab to the subarc mantle has thus far eluded ...
Earth Sciences
Mar 24, 2023
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3
Compass readings that do not show the direction of true north and interference with the operations of satellites are a few of the problems caused by peculiarities of the Earth's magnetic field.
Earth Sciences
Mar 16, 2023
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471
New research is shedding light on the tumultuous processes that give rise to diamonds, by homing in on a distinct purple companion found alongside them.
Earth Sciences
Mar 16, 2023
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131
In the search for life elsewhere in the universe, scientists have traditionally looked for planets with liquid water at their surface. But, rather than flowing as oceans and rivers, much of a planet's water can be locked ...
Astronomy
Mar 15, 2023
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343
Zinc (Zn) isotope systematics is a useful tool to study planetary evolution and trace carbon cycling in the Earth's mantle. However, zinc isotope data for mid-ocean ridge basalts (MORB), the most widespread magmatic rocks ...
Earth Sciences
Mar 7, 2023
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4
Early in the formation of Earth, an ocean of magma covered the planet's surface and stretched thousands of miles deep into its core. The rate at which that "magma ocean" cooled affected the formation of the distinct layering ...
Earth Sciences
Feb 27, 2023
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311
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.
Earth Sciences
Feb 22, 2023
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122
The oceanic lithosphere forms at the summit of ocean ridges during seafloor spreading. Still, the formation of ocean basins is complex, influenced by smaller-scale convection, stagnated pieces of the lithosphere, and tectonic ...
Earth Sciences
Feb 21, 2023
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2
Deep below the Earth's surface lies the outer core, which is made up 2000-km thick liquid iron alloy layer. Despite being located 3000-km deep from the surface, it still affects our surface habitability as it is the region ...
Earth Sciences
Feb 17, 2023
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29
A new technique developed by Carnegie's Yingwei Fei and Lin Wang provides fresh insight into the process by which the materials that formed Earth's core descended into the depths of our planet, leaving behind geochemical ...
Earth Sciences
Feb 16, 2023
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38
