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iron

A metal arm with a cylindrical cage at the end of it extends off the side of a boat, over glassy water with chunks of ice in it. Snowy mountains and clouds are reflected in the water.
Posted inResearch Spotlights

Machine Learning Rediscovers Equations Governing Ocean Biogeochemistry

by Nathaniel Scharping 24 June 202624 June 2026

Researchers used a process called symbolic regression to derive the equations from a biogeochemical model of the ocean.

An illustration shows a 3D cutaway cross section of Earth’s major interior layers.
Posted inFeatures

A Quiet Quantum Revolution in Earth’s Deep Interior

by Renata Wentzcovitch, Laura Cobden, Christine Houser, Grace Shephard and Jingyi Zhuang 22 June 202622 June 2026

A subtle change in iron ions’ electronic configuration produces a measurable difference in seismic wave speeds through mantle rocks.

A production plant, consisting of many series of pipes stretching every which way and up into the sky, stretches off into the horizon.
Posted inNews

Meet the Mysterious Electrides

by Rachel Brazil 5 February 20265 February 2026

These chemical oddities may explain why Earth seems to be deficient in certain elements—and could prove useful in catalysts and more.

A frozen lake in Antarctica has a blue surface crisscrossed by lines. Behind it is a glacier, a mountain, and a blue sky.
Posted inNews

Snowball Earth’s Liquid Seas Dipped Way Below Freezing

by Elise Cutts 4 February 20262 March 2026

Iron isotopes show that salty seawater pockets beneath the ice were as cold as −15°C.

A backward C-shaped swirl of milky blues and greens appears against a deep blue background. In the foreground, toward the edges of the image, clouds appear as white patches.
Posted inResearch Spotlights

Wintertime Spike in Oceanic Iron Levels Detected near Hawaii

Sarah Stanley, Science Writer by Sarah Stanley 11 December 202511 December 2025

Seasonal rainfall and runoff of sediments from the Hawaiian Islands could be responsible for the previously undetected peak.

An aerial photo of Alaska’s Copper River Delta
Posted inResearch Spotlights

Tectonics and Climate Are Shaping an Alaskan Ecosystem

by Nathaniel Scharping 16 October 202516 October 2025

Biogeochemical research reveals the web of forces acting on a high-latitude microbe community in the Copper River Delta.

A researcher wearing waders stands ankle deep in muddy sediment, bending over to extract a water sample from the sediment using a plastic syringe.
Posted inScience Updates

Tracing Iron’s Invisible Transformations Just Beneath Our Feet

by Andrew R. C. Grigg, Katrin Schiedung, Joëlle Kubeneck and Ruben Kretzschmar 19 September 202519 September 2025

A new method that adds synthetic iron minerals to soils sheds light on hard-to-observe soil and sediment processes and may have a host of other applications in the Earth sciences and beyond.

Satellite image of green swirls in blue water next to a snow-covered coast
Posted inNews

Iron Emissions Are Shifting a North Pacific Plankton Bloom

by Mark DeGraff 6 August 20256 August 2025

Some of the iron emitted by industrial activity in East Asia is carried by winds into the North Pacific, where it nourishes iron-hungry phytoplankton.

Two graphs from the article.
Posted inEditors' Highlights

Seasonal Iron Cycle and Production in the Subantarctic Southern Ocean

by Eileen Hofmann 29 May 202529 May 2025

Long-term monitoring at a site in the subantarctic region south of Australia combined with ship-based observations reveals three distinct phases between cycles of phytoplankton productivity and dissolved iron.

Acidic waters of the Rio Tinto in Spain
Posted inAGU News

A Planetary Perturbation Like No Other

by Caryl-Sue Micalizio 16 January 202527 January 2025

Scientists are tackling “the most profound questions about life itself” with complex computer modeling, billion-year-old bacteria, and old-fashioned fieldwork.

Posts pagination

1 2 3 4 Older posts
Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

Features from AGU Publications

Research Spotlights

Forty Thousand Cubic Meters of Fresh Water Flow from the Congo into the Atlantic Every Second. A New Study Traces Where It Goes from There.

2 July 20262 July 2026
Editors' Highlights

Fluid-Driven Reactions Restore Fault Strength Between Earthquakes

30 June 202630 June 2026
Editors' Vox

Small-Scale Indian Ocean Dynamics Underpin Marine Ecology and Climate

4 June 20263 June 2026
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