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Earth's mantle

In the left foreground, a volcano’s crater is filled with small peaks of white gray. The hardened lava had clearly flowed as a thin rivulet down both the right and left sides of the peak. In the background, topography and clouds are visible. Part of the plane’s wing is on the right side of the photo.
Posted inNews

Ancient Subduction May Have Seeded Today’s Critical Mineral Deposits

by Alka Tripathy-Lang 29 May 202628 May 2026

The fertilized mantle lithosphere may play an important first step in the formation of carbonatite deposits, known to host critical minerals.

Photo of a scientists installing equipment in the field.
Posted inEditors' Vox

Mapping the Hidden Electrical Anatomy of a Continent

by Paul A. Bedrosian, Anna Kelbert, Adam Schultz and Gary D. Egbert 26 May 202621 May 2026

After nearly two decades, the first continent-wide magnetotelluric survey reveals the high-resolution electrical architecture of the North American continent.

Three scientists working on the side of a mountain.
Posted inEditors' Vox

Hydrothermal Heat Flow as a Window into Subsurface Arc Magmas

by Benjamin A. Black, S. E. Ingebritsen and Kazuki Sawayama 28 April 20261 May 2026

What can warm fluids in arc crust tell us about how much magma is lurking underground? Hydrothermal heat fluxes provide constraints on the supply of magma from the mantle in subduction zones.

Ground-level view looking over a flat expanse of land covered in a crust of crystalline salt, with a group of people standing around a tall drilling rig in the distance.
Posted inFeatures

Drilling Down to Open Up New Understanding of Earth’s Continents

by Christopher A. Scholz, Anders Noren, Lisa Park Boush, Brett M. Carpenter and Russell Callahan 27 March 202627 March 2026

Scientists have drilled into Earth’s crust for decades to understand natural hazards, past climates, energy resources, and more. They’ve only scratched the surface of what we can learn.

Two maps of Earth show areas highlighted in red and blue. In the image called “nonelliptical geoid,” the darkest blue area is in the Indian Ocean. In the image labeled “nonhydrostatic geoid,” the darkest blue area is over Antarctica.
Posted inNews

Scientists Remap Earth’s Gravity

by Tom Metcalfe 26 March 202626 March 2026

An uncommon way of looking at the world reveals the evolution of a deep gravity hole beneath Antarctica.

Four ovals show a rough outline of Earth and its continents, overlaid with blue and red splotches.
Posted inNews

What do BLOBs Have to Do with Earth’s Magnetic Field? A Lot, It Turns Out

by Bill Morris 5 March 20265 March 2026

Enormous provinces of superheated mantle exert a powerful influence over our planet’s magnetic field, researchers have discovered.

A map showing continental mantle earthquakes around the world.
Posted inNews

Scientists Create the First Map of Deep Earthquakes Beneath Continents

by Larissa G. Capella 5 March 20265 March 2026

Scientists once thought Earth’s continental mantle was too weak for earthquakes. A new global map of 459 deep tremors suggests otherwise.

Photomicrographs
Posted inEditors' Highlights

Kyanite Exsolution Reveals Ultra-Deep Subduction of Continents

by Jun Tsuchiya and Sujoy Ghosh 23 January 202622 January 2026

Laboratory experiments provide the first experimental evidence that continental rocks can be subducted to depths greater than 300 kilometers and return to the surface.

Diagram from the study.
Posted inEditors' Highlights

From Mantle Flow to River Flow: Shaping Earth’s Surface from Within

by Fabio A. Capitanio 20 November 202519 November 2025

The convection of the Earth’s mantle shapes its surface, carving fault networks into the lithosphere that can guide the course of rivers.

Two modeling images show plumes, blobs, and slabs beneath Earth’s surface.
Posted inResearch Spotlights

Seismic Anisotropy Reveals Deep-Mantle Dynamics

by Rebecca Owen 21 October 202523 October 2025

A new study offers insight into the viscous BLOBs at the base of Earth’s mantle.

Posts pagination

1 2 3 … 9 Older posts
Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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Research Spotlights

Rivers in the Antarctic Sky, Captured in 3D

2 June 20262 June 2026
Editors' Highlights

Pre-Existing Structure and Stress Shape Geothermal-Induced Seismicity

2 June 20261 June 2026
Editors' Vox

7 Decades of Books Leave a Lasting Legacy

3 June 202627 May 2026
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