New seismic images of the Lucky Strike slow-spreading segment of the Mid-Atlantic Ridge show thick lower crust at the center that thins in both along-ridge directions.
Earth’s crust
Posted inScience Updates
The Deep Frontier of Mantle Magma Supply
Compared with crustal magma systems, little is known about the deep sources of volcanic supply chains. Interdisciplinary efforts can help answer key questions about how magma migrates from the mantle.
Posted inResearch Spotlights
A Seafloor Spreading Slowdown May Have Slashed Sea Levels
Between 15 million and 6 million years ago, a drop in ocean crust production may have lowered sea level by 26–32 meters.
Posted inFeatures
How to Build the World’s Highest Mountain
The rocks of Mount Everest’s peak made an epic journey from seafloor to summit.
Posted inResearch Spotlights
Tracing Metals from Earth to Water to Life in the Yellow River
The mix of metals in China’s Yellow River stays relatively similar as it moves from the upper continental crust to biological life.
Posted inResearch Spotlights
Deep Beneath California’s Sierra Nevada, Earth’s Lithosphere May Be Peeling Away
Evidence for lithospheric foundering, or the process of denser material sinking into the mantle, is emerging.
Posted inScience Updates
Beneath Greenland, Insights for Energy Transitions and Climate Models
Emerging consensus on the structure and dynamics of Greenland’s lithosphere may help improve forecasts of climate and sea level change and develop solutions for sustainable resource use.
Posted inEditors' Vox
Guidelines for Managing Induced Seismicity Risks
Consolidating state-of-the-art science into guidelines provides a path forward for managing induced seismicity risks and highlights avenues for future research.
Posted inResearch Spotlights
Magmatic Fluids and Melts May Lie Beneath Dormant German Volcanoes
New processing strategies applied to old seismic data reveal potential pockets of magmatic fluids or melts from the upper mantle.
Posted inEditors' Highlights
Magma Diversity in Iceland
Iceland’s recent basalt eruptions originated at the crust-mantle boundary and show chemical variability over remarkably short timescales of weeks, suggesting exchanges between diverse magma sources.