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Tectonics

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A green hill sits beneath a blue sky.
Posted inResearch Spotlights

Isotopes Unearth History of Earthquakes in the Apennines

by Nathaniel Scharping 17 April 202517 April 2025

Dating of cosmogenic chlorine isotopes yields long-term estimates of fault activity in Italy, showing that periods of earthquakes and quiescence alternate over millennia.

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.

A wide, flat area of tan-colored earth, with mountains in the distance. In the foreground, a paler, gray-colored substance appears to overlay the ground. Streaks of the tan-colored ground are visible beneath the gray substance.
Posted inResearch Spotlights

Tracing Millions of Years of Geologic Stress in the Andean Plateau

by Nathaniel Scharping 15 July 202415 July 2024

Paleostress modeling shows how a region of the Andean Plateau was uplifted and formed beginning more than 20 million years ago.

A global thermal map of Enceladus.
Posted inNews

Strike-Slip Faults Could Drive Enceladus’s Jets

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 29 April 202429 April 2024

The back-and-forth motion could also reshape surface geology at the moon’s south pole.

A mountain with alternating stripes of greenery and bare beige rock. There is a point in the middle of the rock where the stripes change direction, indicating a fault propagation fold.
Posted inResearch Spotlights

Uncovering Earthquake Evidence in Azerbaijan’s Greater Caucasus Mountains

by Rebecca Owen 27 March 202418 June 2024

A new study unearths geological evidence that corroborates historical accounts of large earthquakes along the Kura fold-thrust belt.

Image depicting Viscosity estimates for the mantle underneath Greenland.
Posted inEditors' Highlights

4D Viscosity Constraints from Greenland 

by Thorsten Becker 28 March 202311 April 2023

The mantle’s resistance to flow appears different for glacial and plate tectonic timescales but this behavior can be reconciled with new thermo-mechanical models of the asthenosphere.

Photo of the Apennine Mountains in Italy.
Posted inEditors' Highlights

Topography Along the Apennines Reflects Subduction Dynamics

by Duna Roda-Boluda 15 March 202313 March 2023

Topography and exhumation vary strongly along the Apennines, reflecting the geometry of the Moho and different geodynamic mechanisms.

A vineyard growing on a mountain slope with several other mountains visible in the background
Posted inResearch Spotlights

Scientists Decipher the Seismic Dance of the Southern Alps

by Morgan Rehnberg 20 January 202320 January 2023

Most of the Alps are considered tectonically dead, but according to new research, the southeastern region—home to prosecco wine—is very much alive.

白雪覆盖的山峰排列在青藏高原的南部边缘。
Posted inResearch Spotlights

研究揭示尼泊尔西部喜马拉雅港湾状地形的形成

Sarah Derouin, Science Writer by Sarah Derouin 19 October 202219 October 2022

研究人员通过热运动学研究发现,沿着板块汇聚界面大型逆冲断层在中下部地壳深处的地壳物质堆叠塑造了高原的生长和区域水系的发育。

Posted inEditors' Highlights

A Really Big (Global) Splash at Chicxulub

by Tom Parsons 12 October 202213 October 2022

What caused a tsunami 30,000 times more powerful than the December 26, 2004 Indian Ocean tsunami? A new modeling study says this was one of the results from the Cretaceous Chicxulub asteroid impact.

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Features from AGU Publications

Research Spotlights

River Alkalinization and Ocean Acidification Face Off in Coastal Waters

21 May 202521 May 2025
Editors' Highlights

Rock Solid Augmentation: AI-Driven Digital Rock Analysis

21 May 202521 May 2025
Editors' Vox

Decoding Crop Evapotranspiration

6 May 20256 May 2025
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