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Geochemistry, Geophysics, Geosystems

Visit the journal.

Photomicrographs of minerals.
Posted inEditors' Highlights

Unlocking Earth’s Terrestrial Sedimentary Record with Paleosols

by Maria Giuditta Fellin 9 July 20241 July 2024

Harnessing the micro-stratigraphy of pedogenic carbonates, scientists have demonstrated that age determination of fossil soils is possible via uranium-lead dating.

Photo of a mountain top
Posted inEditors' Highlights

A Seismogenic Shear Zone Diagonal to the Main Himalayan Thrusts

by Anne Paul 1 July 20241 July 2024

Scientists document active seismic shear along a major lineament of Sikkim Himalaya diagonal to the Main Himalayan Thrusts.

A rocky overlook with a few small cracks running through it. In the distance are clouds and lower hills and mountains.
Posted inResearch Spotlights

How Tiny Cracks Lead to Large-Scale Faults

Sarah Stanley, Science Writer by Sarah Stanley 10 June 202410 June 2024

Researchers could soon gain new insights into fault development in Earth’s brittle crust, thanks to a computational approach that harnesses experimental observations of microscale rock damage.

A map showing the elevations of land and ocean floor around the Mariana Trench, a subduction zone in the Pacific Ocean. The trench is shown by the lowest elevations of nearly 11,000 meters (36,000 feet) deep at the southern end.
Posted inResearch Spotlights

The Nature of Mantle Flow May Depend on the Type of Slab Subducting

Sarah Derouin, Science Writer by Sarah Derouin 23 February 202423 February 2024

Researchers tease apart the links between slabs and mantle flow near subduction zones, upending some traditional views of subduction-induced mantle flow.

Satellite image of Honshu Island
Posted inResearch Spotlights

Plate Boundaries May Experience Higher Temperature and Stress Than We Thought

Aaron Sidder, freelance science writer by Aaron Sidder 21 February 202421 February 2024

Surface heat flux data shed light on conditions deep below Earth’s surface, at a tectonic plate interface where major earthquakes initiate.

2 graphs from the paper.
Posted inEditors' Highlights

Machine Learning for Geochemists Who Don’t Want to Code 

by Paul Asimow 9 February 20249 February 2024

Geochemistry π is an easy-to-use step-by-step interface to carry out common machine learning tasks on geochemical data, including regression, clustering, classification, and dimension-reduction.

In the background, snow-capped Mount Hood rises above a mountain range. In the foreground, the skyscrapers of Portland, Ore., dominate the landscape.
Posted inResearch Spotlights

Some High-Threat Volcanoes Are Severely Understudied

by Saima May Sidik 29 November 202329 November 2023

Scientists have little understanding of where magma is stored along the Cascade Volcanic Arc or how its volcanoes could affect population centers.

Image of the seven journal covers.
Posted inEditors' Vox

Announcing New AGU Journal Editors-in-Chief Starting in 2024

by Matt Giampoala and Carol Frost 9 November 202315 November 2023

AGU is excited to welcome new Editors-in-Chief for seven of our journals in 2024, including the founding Editor of JGR: Machine Learning and Computation.

Map of study area with symbols.
Posted inEditors' Highlights

Machine Learning Identifies Source Volcanoes of Ash Deposits

by Paul Asimow 8 November 20236 November 2023

Tracing ash layers from explosive eruptions back to their source volcanoes is needed to evaluate hazards to population and aviation, a problem addressed by a new machine learning classification method.

Diagram from the study
Posted inEditors' Highlights

Piecing Together the Roots of the Ancient Australian Continent

by Paul Asimow 25 October 202326 October 2023

Mineral compositions from numerous volcanic rocks that sample the mantle keel beneath Western Australia’s Kimberley Craton reveal the temperature and mineralogy that explain its long-lived stability.

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Features from AGU Publications

Research Spotlights

More Bubbles Means More Variation in Ocean Carbon Storage

8 July 20258 July 2025
Editors' Highlights

Defining the Tropopause in Chemical Transport Models

8 July 20258 July 2025
Editors' Vox

Water Tracks: The Veins of Thawing Landscapes

25 June 202525 June 2025
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