Rocks exhumed from a subduction zone in Papua New Guinea suggest that temperature changes with depth in ways not previously predicted, calling into question current models of subduction.
subduction
Posted inResearch Spotlights
What Triggered an Ancient Magma Surge in the North Cascades?
A new, high-precision timeline helps clarify the story of a 79-million-year-old flare-up.
Posted inEditors' Highlights
How Dehydration-Driven Fluid Pressure Shapes Megathrust Slip Modes
By modeling dehydration-driven fluid pressure, a new study links deep fluids to where megathrust earthquakes end and slow slip begins.
Posted inNews
Ancient Subduction May Have Seeded Today’s Critical Mineral Deposits
The fertilized mantle lithosphere may play an important first step in the formation of carbonatite deposits, known to host critical minerals.
Posted inEditors' Highlights
Recycled Rocks Reveal Subduction Zone Dynamics Off Baja California
High-pressure rocks on Cedros Island were exhumed, eroded, and redeposited into the subduction trench multiple times, reshaping interpretations of ancient plate boundary processes.
Posted inResearch Spotlights
Seismic Attenuation Techniques Reveal What Lies Beneath Taiwan
A new imaging modality explores the complex subduction‐collision transition zone below southern Taiwan.
Posted inEditors' Vox
Hydrothermal Heat Flow as a Window into Subsurface Arc Magmas
What can warm fluids in arc crust tell us about how much magma is lurking underground? Hydrothermal heat fluxes provide constraints on the supply of magma from the mantle in subduction zones.
Posted inNews
What do BLOBs Have to Do with Earth’s Magnetic Field? A Lot, It Turns Out
Enormous provinces of superheated mantle exert a powerful influence over our planet’s magnetic field, researchers have discovered.
Posted inEditors' Highlights
Kyanite Exsolution Reveals Ultra-Deep Subduction of Continents
Laboratory experiments provide the first experimental evidence that continental rocks can be subducted to depths greater than 300 kilometers and return to the surface.