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Earth’s crust

Underwater photo of smoke erupting from the sea floor.
Posted inEditors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

by Laurence A. Coogan, Alexandra V. Turchyn, Ann G. Dunlea and Wolfgang Bach 3 December 20253 December 2025

From a gathering of scientists at a uniquely well-preserved section of ancient oceanic crust came a monograph investigating the latest in hydrothermal fluxes and seawater chemistry.

Diagram from the article.
Posted inEditors' Highlights

The Invisible Brake: Near‑Surface Cooling Stalls Giant Dyke Swarms  

by Nikolai Bagdassarov 18 November 202517 November 2025

Sill-based pressure reconstructions show Mull’s giant dykes had eruption-capable pressures, but near‑surface groundwater cooling increased magma viscosity and stalled lateral propagation. 

A rupture in the rocky soil extending at an angle with a researcher in the top middle of the image.
Posted inNews

The Ridgecrest Earthquake Left Enduring Damage in Earth’s Deep Crust

by Andrew Chapman 14 November 202514 November 2025

The shallow crust has recovered since California’s 2019 quake, but damage persists at depths greater than 10 kilometers.

A lake, surrounded by low hills and trees, is overlooked from a nearby hill. In the mid-ground, a white truck drives across the frame.
Posted inResearch Spotlights

New 3D Model Reveals Geophysical Structures Beneath Britain

by Nathaniel Scharping 10 October 202510 October 2025

Using magnetotelluric data to identify subsurface electrically conductive and resistive areas, scientists can identify underground features and predict how space weather may affect infrastructure.

Primer plano de una veta blanca de calcita en roca basáltica gris con una pequeña planta sobre la roca.
Posted inOpinions

Verdaderas soluciones climáticas están debajo de nosotros

by Peter Reiners 29 July 20257 August 2025

Es momento de aceptar que el almacenamiento duradero de carbono en el subsuelo, junto con la reducción de emisiones, debe ser parte del plan para mitigar los efectos del cambio climático, y las geociencias deben desempeñar un papel central.

A cracked and deformed rupture in the Earth's surface with a truck in the background.
Posted inEditors' Highlights

New Insights into How Rocks Behave Under Stress

by Yves Bernabé 22 July 202522 July 2025

New 3D imaging techniques show hidden patterns of stress that help explain how and why rocks break.

Images and diagrams of nano-scale cavities.
Posted inEditors' Highlights

Creep Cavitation May Lead to Earthquake Nucleation

by Alexandre Schubnel 22 May 202521 May 2025

Ultramylonites, rocks of ultrafine grainsize, bring records of nanometer-scale cavities generated at the base of seismogenic crust along Japan’s largest on‐land fault.

Close-up view of a white vein of calcite in gray basalt rock with a small plant on the rock.
Posted inOpinions

Real Climate Solutions Are Beneath Us

by Peter Reiners 2 May 202526 August 2025

It’s time to accept that durable subsurface carbon storage, along with emissions reductions, must be part of the plan to mitigate the effects of climate change—and geoscience must play a central role.

Posted inResearch Spotlights

Matching Magma Dikes May Have Different Flow Patterns

Sarah Stanley, Science Writer by Sarah Stanley 30 April 20255 May 2025

A set of lab experiments involving a laser, gelatin, and xanthan gum explored how varying flow patterns between dikes with similar speeds and shapes could affect eruption predictions.

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.

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A view of a bridge, with the New Orleans skyline visible in the distance between the bridge and the water. A purple tint, a teal curved line representing a river, and the text “#AGU25 coverage from Eos” overlie the photo.

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Our Ocean’s “Natural Antacids” Act Faster Than We Thought

30 January 202630 January 2026
Editors' Highlights

Cows, Coal, and Chemistry: The Role of Photochemistry in Methane Budget

27 January 202623 January 2026
Editors' Vox

Bridging the Gap: Transforming Reliable Climate Data into Climate Policy

16 January 202616 January 2026
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