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plate tectonics

海洋附近的火山喷发将烟雾和蒸汽送入天空。
Posted inResearch Spotlights

追踪古萨摩亚消失的地幔柱

by Nathaniel Scharping 26 November 202426 November 2024

一层厚厚的地壳可能盖住了萨摩亚火山柱,抑制了火山活动3000万年,这就解释了萨摩亚火山链上一个奇怪的裂缝。

A colorful map with data points.
Posted inEditors' Highlights

Compositional Anomalies Complicate Our Model of Mantle Convection

by Thorsten W. Becker 20 November 202420 November 2024

A new study expands on recent research which suggests that oceanic crust accumulates in the mid-mantle. The new seismological constraints advance our understanding of thermo-chemical planetary evolution.

Field photo of a mountainous region covered with long grass and shrubs.
Posted inEditors' Highlights

Elementary, My Dear: Al & Be Give Evidence of Past Climate Change

by Mikaël Attal 14 November 202412 November 2024

10Be and 26Al concentrations in river sand reveal an increase in erosion rate in the Brazilian Highlands consistent with the Mid-Pleistocene Transition, a major climatic shift that occurred about 1 million years ago.

Plumes of gas emanate from the seafloor.
Posted inResearch Spotlights

A New View of Deep Earth’s Carbon Emissions

by Saima May Sidik 7 November 20247 November 2024

Advances in plate tectonics research allow a deeper understanding of how greenhouse gases escape from within the planet.

Two diagrams
Posted inEditors' Highlights

How Does Subsurface Lithology Speak to Hillslope Morphology?

by Erkan Istanbulluoglu 5 November 20245 November 2024

Subsurface flow hydrology connects soils and bedrock lithology to long-term catchment evolution in humid landscapes.

Field photo of a rock outcrop.
Posted inEditors' Highlights

Structural Inversion of an Intracratonic Rift System in Deep Time

by Alexis Ault 31 October 202431 October 2024

A new study reconstructs how an ancient North American rift system was uplifted in space and time due to subsequent continent-continent collision.

An aquamarine body of water in a desert landscape. The water’s edge has white crystallized material.
Posted inNews

Nevada Has Loads of Lithium. Here’s Why.

by Evan Howell 31 October 202428 March 2025

Nevada is becoming a major producer of lithium, thanks to topography, climate, and geologic serendipity.

A volcanic eruption near the ocean sends smoke and steam into the sky.
Posted inResearch Spotlights

Tracking a Disappearing Mantle Plume in Ancient Samoa

by Nathaniel Scharping 25 October 202426 November 2024

A thick portion of Earth’s crust may have capped the Samoan plume and suppressed volcanism for 30 million years, explaining a curious gap along the Samoan chain.

Image manipulation of Earth and the Moon seen from orbit with Saturn’s rings disappearing behind the horizon.
Posted inNews

A Close Asteroid Encounter May Have Once Given Earth a Ring

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 18 October 202418 October 2024

An unusual concentration of impact craters suggests that they may have been caused by the breakup of an asteroid that created a temporary debris ring around Earth.

Two maps with symbols to indicate seismic events.
Posted inEditors' Highlights

Seismotectonic Update of the Philippines-Taiwan Region

by Atalay Ayele 4 October 20243 October 2024

Using more than two decades of data, scientists find that the Philippine and Taiwan subduction region is controlled mainly by shallow seismicity and low magnitude earthquakes.

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Features from AGU Publications

Research Spotlights

Tracing Black Carbon’s Journey to the Ocean

11 July 202510 July 2025
Editors' Highlights

The Power of Naming Space Weather Events

10 July 20258 July 2025
Editors' Vox

Water Tracks: The Veins of Thawing Landscapes

25 June 202525 June 2025
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