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plate tectonics

Map of Paradox Basin with symbols
Posted inEditors' Highlights

Faults Along Salt Walls Are Less Stressed in the Paradox Basin

by Birgit Müller 22 July 202422 July 2024

Based on an extended stress database, scientists observe systematic changes in the tectonic stress state and a reduction in fault reactivation potential near salt walls in the Paradox Basin.

Aerial image of a gray volcano topped with snow emitting a large cloud of gray smoke. The volcano is surrounded by dark blue water.
Posted inResearch Spotlights

How Mantle Hydration Changes over the Lifetime of a Subduction Zone

Aaron Sidder, freelance science writer by Aaron Sidder 19 July 202418 July 2024

Water released from subducting oceanic plates influences the formation of volcanoes and earthquakes on Earth’s surface. A new study simulates how slab dehydration and mantle hydration levels change over time.

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.

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.

Acantilados grises y beige a la izquierda con vistas a un océano azul a la derecha.
Posted inResearch Spotlights

Cómo los movimientos del manto dan forma a la superficie terrestre

Rachel Fritts, Science Writer by Rachel Fritts 18 June 202418 June 2024

Dos nuevos conjuntos de datos ayudan a los investigadores a separar las influencias de la tectónica de placas y el movimiento del manto en la topografía de la superficie.

A planet with oceans, clouds, and landmasses appears against a black background.
Posted inNews

A Step Closer to Solving the Fermi Paradox

Katherine Kornei, Science Writer by Katherine Kornei 24 May 20249 January 2025

Finding evidence of complex life elsewhere in the Milky Way galaxy hinges on locating rocky planets with plate tectonics and a mixture of landmasses and oceans, new research suggests.

An artist’s depiction of Earth split into two. On the left side is Earth early in its history, being struck by another planetary body in a fiery impact. On the right is Earth today, with a smooth surface, mantle plumes, and a moon.
Posted inResearch Spotlights

Earth’s Subduction May Have Been Triggered by the Same Event That Formed the Moon

Rachel Fritts, Science Writer by Rachel Fritts 20 May 202420 May 2024

The giant impact that formed the Moon may also have led to extrastrong mantle plumes that enabled the first subduction event, kick-starting Earth’s unique system of sliding plates.

Diagram and graphs from the paper.
Posted inEditors' Highlights

GAD is Enough!

by Daniel Pastor-Galán 10 May 202425 September 2024

An exhaustive study in China finds no need to invoke extreme true polar wander nor anomalous geomagnetic fields in the early Neoproterozoic.

A satellite photo shows the Caspian Sea from above.
Posted inNews

As the Caspian Sea Recedes, Tectonics May Help Shape Its Coastline

by Grace van Deelen 6 May 20247 November 2024

Land subsidence and uplift determine where the Caspian Sea’s coastline shifts the fastest.

Gray and beige cliffs on the left overlook a blue ocean on the right.
Posted inResearch Spotlights

How Mantle Movements Shape Earth’s Surface

Rachel Fritts, Science Writer by Rachel Fritts 2 May 202418 June 2024

Two new data sets help researchers tease apart the influences of plate tectonics and mantle movement on surface topography.

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