Reservoirs of magma and fluids in the crust create gravity anomalies detectable by altimetry, which can help find submarine volcanoes and provide key insights into their depth, shape and volume.
lava & magma
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.
Posted inNews
Alaska’s Mount Veniaminof Volcano Is Stealthy—Here’s Why
New research explains why Mount Veniaminof erupts without the usual warming signs.
Posted inNews
Io Probably Doesn’t Have a Global Magma Ocean After All
Data from the Juno spacecraft may have answered a decades-old question about Jupiter’s moon.
Posted inEditors' Highlights
120 Years of Geodetic Data on Kīlauea’s Décollement
A new study explores the deformation and stress changes of Kīlauea’s décollement from 1898 to 2018 by collating an unprecedented 120 years of geodetic data.
Posted inNews
Large Igneous Provinces May Have Leaked Cryptic Carbon
Dissolved carbon dioxide may have bubbled up from magma far below the surface, contributing to prolonged warming.
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 inNews
Hot Spot Lavas Around the World May Have Something in Common
A global study of lavas from volcanic hot spots suggests that contrary to accepted wisdom, Earth’s deep mantle may have the same composition throughout. Not everyone is convinced, however.
Posted inENGAGE, News
Here’s Why Resolution Copper Wants to Mine Oak Flat
Southeastern Arizona’s “Copper Triangle” is a hot spot for high-grade deposits, thanks to ancient magmatic activity.