Mantle rocks in Papua New Guinea contain curious geochemical signatures that scientists have traditionally interpreted as evidence of billions-year-old melting. New evidence suggests otherwise.
To trace how crucial ingredients for life arrived at Earth, scientists track noble gases. Now, improved methods are drawing new clues from krypton, the most cryptic of noble gases.
If subduction carries hydrous minerals deep into Earth’s mantle, they may “rust” the iron outer core, forming vast sinks of oxygen that can later be returned to the atmosphere.
Helium isotopes found in water samples provide a snapshot of what lies beneath the plateau and stimulate debate within the geosciences community.
Scientists not only synthesized davemaoite but deformed it at lower mantle conditions. They found its strength and viscosity to be substantially lower than those of other minerals that make up the lower mantle.
Researchers identified a gateway that allows metals critical for renewable energy technologies, like copper and gold, to make their way to the surface.
Instead of waiting for earthquake waves to tell scientists about the structure of Earth’s interior, scientists can now use ambient noise from humans to “see” underground.
Scientists studying South Pacific earthquakes suggest that an ultralow-velocity zone at the core-mantle boundary may be a remnant of a molten early Earth.
The Matterhorn in the Swiss Alps is in constant motion, gently swaying back and forth about once every 2 seconds.
A diamond inclusion has revealed a new mineral, davemaoite, as well as hints about the workings of our planet’s interior.