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volcanoes

Diagram from the study.
Posted inEditors' Highlights

Martian Magmas Live Long and Prosper

by Mariek E. Schmidt 10 April 20259 April 2025

The depths, longevity, and potential to generate silicic compositions of magma chambers are linked to crustal temperature, which varies across Mars and over its geological history.

A rust-colored fossilized feather within a dark gray rock
Posted inNews

A 30,000-Year-Old Feather Is a First-of-Its-Kind Fossil

by Grace van Deelen 9 April 20259 April 2025

A new analysis of a fossil found in 1889 has unveiled the presence of zeolites—and an entirely new mineralization method.

Seismic images from the study.
Posted inEditors' Highlights

Seismic Images Show Major Change Along the Mid-Atlantic Ridge

by Andrew Frederiksen 7 April 20253 April 2025

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.

El Monte Hood cubierto de nieve se alza a lo lejos, más allá del horizonte nocturno de Portland, Oregón.
Posted inFeatures

Cómo pueden los vulcanólogos mejorar la resiliencia urbana al cambio climático

by Jonathan Fink and Michael Armstrong 27 March 202527 March 2025

Las estrategias pensadas para ciudades enteras para hacer frente al cambio climático pueden beneficiarse de los conocimientos de los vulcanólogos, que llevan mucho tiempo adaptando la información y la comunicación sobre riesgos a las comunidades locales.

Close up view of the surface of dark-colored rock containing several large pale green crystals. The tip of a pen appears beside the rock for scale.
Posted inScience Updates

The Deep Frontier of Mantle Magma Supply

by Ben Black, Samer Naif, Forrest Horton, Andrea Goltz and Cian Wilson 25 March 202525 March 2025

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.

A mostly flat landscape is dotted with mounds, which give way to taller volcanic cones in the background.
Posted inResearch Spotlights

Water Stored in the Mantle for Millions of Years May Be Linked to Continental Volcanism

by Rebecca Owen 19 March 202519 March 2025

New research shows that intraplate volcanism is more likely to occur over areas of the mantle that are more hydrated—particularly those that have been hydrated for a long, long time.

Map of the Iceland’s Reykjanes Peninsula.
Posted inEditors' Highlights

Observing Magma-Induced Seismic Velocity Changes with Fiber-Optics

by Marcos Moreno 26 February 202526 February 2025

A new high-resolution method for tracking volcanic activity utilizes fiber-optic sensing to detect magma intrusion by measuring seismic velocity changes.

A cave with white stalagmites and stalactites.
Posted inNews

Cave Deposit Links Greenland’s and Europe’s Climate Records with a German Volcano

by Bill Morris 21 February 202521 February 2025

Dating a late Pleistocene eruption has big implications for understanding the Younger Dryas—and current climate change.

Aerial view of Yellowstone’s Upper Geyser Basin
Posted inNews

Magma Beneath Yellowstone Is Shifting Northeast

by Skyler Ware 31 January 202531 January 2025

Though the volcano’s magma chambers could hold enough material for a caldera-forming event, none of them are likely to erupt soon.

A top-down view of green and brown land with a roughly circular depression with a blue lake in the middle
Posted inNews

Ice Core Records Shed Light on a Volcanic Mystery

Katherine Kornei, Science Writer by Katherine Kornei 29 January 202529 January 2025

By analyzing sulfur and volcanic ash entrained in ice cores, researchers pinpointed a caldera in the remote Kuril Islands as the site of an unidentified 19th century eruption.

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