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Earth’s interior

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.

The sunny side of Earth as viewed from the Deep Space Climate Observatory.
Posted inNews

Scientists May Have Found Another Viscosity Shift in the Mantle

by Perri Thaler 12 December 202412 December 2024

The proposed distinction could improve Earth models.

A deep canyon, which can form when rocks shift.
Posted inResearch Spotlights

High-Pressure Reactions Can Turn Nonporous Rocks into Sponges

by Saima May Sidik 23 September 202423 September 2024

Mathematical models describe how water moves through rocks in deep Earth.

Diagram from the paper.
Posted inEditors' Highlights

Crustal Melts at the Core-Mantle Boundary

by Thorsten Becker 13 August 202412 August 2024

Seismic waves get sent in all directions for deep mantle anomalies, and a new analysis shows where those scatters lie and what properties they have.

Rocas grises bandeadas entre pasto verde y pequeñas flores blancas
Posted inNews

Sedimentos radiactivos podrían haber construido los cratones de la Tierra

Javier Barbuzano, Science Writer by Javier Barbuzano 2 August 20242 August 2024

La meteorización de los primeros continentes podría haber puesto en marcha la formación de cratones, las raíces inmutables de los continentes.

Photo of scientific equipment in the field.
Posted inEditors' Vox

Seismology Helps Us Understand How Material Flows in Earth’s Deepest Mantle

by Jonathan Wolf 1 July 20241 July 2024

Recent progress in the analysis of seismic waves enables us to determine where, and sometimes how, the base of the mantle deforms.

Gray rocks among green grasses and flowers
Posted inNews

Radioactive Sediments May Have Built Earth’s Cratons

Javier Barbuzano, Science Writer by Javier Barbuzano 14 June 20244 August 2024

Weathering of the earliest continents could have set in motion the formation of cratons, the immutable roots of continents.

An overhead view of Argyle diamond mine in Western Australia
Posted inNews

Continental Breakup Shot Pink Diamonds to Earth’s Surface

by J. Besl 23 October 202323 October 2023

What was once the world’s most prolific pink diamond mine has always been an anomaly. New research suggests that the end of an ancient supercontinent helped rocket its precious gems to the surface.

An ocean wave prepares to break, while other waves close in behind it under a hazy sky.
Posted inResearch Spotlights

Exploring the Mantle Through Microseisms

by Rebecca Owen 21 September 202321 September 2023

A new method for examining the tiny vibrations of Earth caused by ocean swells could help reveal details of deep-Earth structure.

Figure from the paper.
Posted inEditors' Highlights

Source Selection Essential to Inter-Source Cross-Correlation 

by Michael Bostock 7 September 20236 September 2023

Inter-source correlograms yield coherent signals upon careful consideration of source mechanisms and source-receiver geometry, affording new means of characterizing planetary interiors.

Posts pagination

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Features from AGU Publications

Research Spotlights

Mapping the Ocean Floor with Ancient Tides

6 May 20256 May 2025
Editors' Highlights

First Benchmarking System of Global Hydrological Models

7 May 20257 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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