A new study expands on recent research which suggests that oceanic crust accumulates in the mid-mantle. The new seismological constraints advance our understanding of thermo-chemical planetary evolution.
AGU Advances
Posted inEditors' Highlights
Physics and Biology as Likely Stream Bedfellows
Streambeds are key sites for removal of nutrients and other contaminants through microbial processes, but are limited by diffusion, which can now be modeled from streambed physical properties.
Posted inEditors' Vox
Announcing New AGU Journal Editors-in-Chief Starting in 2025
AGU is excited to welcome new Editors-in-Chief for five of our journals in 2025.
Posted inResearch Spotlights
Storms Are Knocking Down More and More Trees in the Amazon
Windthrows have increased nearly fourfold in the region, likely because of stronger storms.
Posted inEditors' Highlights
Clumped CO Isotopes – New Tracers for Atmospheric Chemistry
A new study reports the first measurements of 13C18O in atmospheric carbon monoxide (CO) and show their variations reflect chemical ‘aging’ consistent with predicted kinetic isotope effects.
Posted inResearch Spotlights
Tracking a Disappearing Mantle Plume in Ancient Samoa
A thick portion of Earth’s crust may have capped the Samoan plume and suppressed volcanism for 30 million years, explaining a curious gap along the Samoan chain.
Posted inResearch Spotlights
Mapping Landslide Risk in the United States and Puerto Rico
A new method provides highly accurate continental-scale landslide susceptibility maps that are being used in the aftermath of Hurricane Helene.
Posted inResearch Spotlights
Audible Storm Waves Could Turbocharge Earth’s Radiation Belts
Electromagnetic chorus waves could generate more extreme radiation levels than previously thought, posing severe hazards for Earth-orbiting spacecraft.
Posted inEditors' Highlights
The Delicate Balance of Permafrost in Arctic River Floodplains
To evaluate the vulnerability of permafrost in Arctic floodplain landscapes to warming, scientists explore dynamics of its loss and reformation.
Posted inResearch Spotlights
The Moon’s Tides Hint at a Melty Lunar Layer
New lunar gravity measurements support the idea that a partially molten mantle layer is sandwiched between the rest of the Moon’s mantle and its core.