Increments of melt trapped in crystals reveal upper crustal magmas in the Main Ethiopian Rift are rich in water and other volatiles, leading to extensive diffuse degassing and hydrothermal systems.
Geosystems
Posted inEditors' Highlights
Revealing the Arctic Crust
A new model, ArcCRUST, reveals with unprecedent resolution the geometry and the thermal state of the oceanic crust of the High Arctic and Circum-Arctic domain.
Posted inResearch Spotlights
Is the Lower Crust Convecting Beneath Mid-Ocean Ridges?
The first attempt to couple models of hydrothermal circulation and magmatic convection along fast-spreading ridges may explain the spacing of hydrothermal vent fields along the East Pacific Rise.
Posted inEditors' Vox
Competing Models of Mountain Formation Reconciled
The author of a prize-winning paper published in Geochemistry, Geophysics, Geosystems describes new insights into crustal mechanics and the formation of the Himalaya.
Posted inResearch Spotlights
Alteration Along the Alpine Fault Helps Build Seismic Strain
Detailed analysis of cores drilled through New Zealand's most dangerous on-land fault indicates that its permeability and strength are altered by mineral precipitation between seismic events.
Posted inResearch Spotlights
Revising the Displacement History of New Zealand's Alpine Fault
A reinterpretation of structural and paleomagnetic data suggests that New Zealand's Alpine Fault accommodates a far greater percentage of geologically recent plate motion than previously thought.
Posted inResearch Spotlights
Characterizing the Fault Beneath the Marmara Sea
Researchers mine seismic wave data to elucidate the stress relief system of the Main Marmara Fault beneath Turkey's inland sea.
Posted inResearch Spotlights
Dating Lava Domes in California's Salton Trough
Scientists use a trio of techniques to resolve the age and duration of rhyolite volcanism of the Salton Buttes.
Posted inResearch Spotlights
Probing for Earthquakes' Origins
To better understand how earthquakes nucleate, scientists spy on the Alpine Fault in New Zealand.
Posted inResearch Spotlights
A Modified Technique to Remotely Detect Subsurface Melt
Adapting a much-used analytical method to consider anisotropy opens up the approach to new uses.