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Earth’s crust

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.

A piece of rock under a microscope. Colors are mostly gray and beige, with a small section of blue near the center. A legend on the bottom right indicates the image is about 100 micrometers across.
Posted inResearch Spotlights

Mantle Heat May Have Boosted Earth’s Crust 3 Billion Years Ago

by Rebecca Owen 23 April 202423 April 2024

Information from igneous zircon molecules gives researchers new insight into the workings of inner Earth.

Diagram from the study.
Posted inEditors' Highlights

Hydraulic Fractures Are Lazy

by Douglas R. Schmitt 19 April 20248 July 2024

The layering of rock masses can help constrain and focus the growth of hydraulic fractures.

Swirly white and black rock
Posted inNews

From First Continents to Fancy Countertops

by Tom Metcalfe 18 April 202420 June 2024

A new study suggests melting gabbros may have helped form Earth’s first continents, riling a long-standing debate.

Map of the Hawaiian islands with colors and contour lines overlain.
Posted inEditors' Highlights

A Strong Pacific Plate Bends Under the Hawaiian Volcanic Chain

by Emilie Hooft 14 March 202413 March 2024

Two seismic studies reveal the volcanic loads and resulting flexure of the Pacific plate at the Hawaiian Ridge and, surprisingly, show no magmatic underplating.

Photo of a snow covered mountain
Posted inEditors' Highlights

Illuminating the Complex Structural Fabric Beneath the European Alps

by Fiona Darbyshire 5 October 20238 July 2024

A new study investigates the dynamics of the complex continental collision that formed the European Alps and reveals how structural alignments change with depth.

Photo of a hilly landscape with lines annotating a low-angle fault
Posted inNews

Flowing Crust Pushes Faults on Their Backs

by Rebecca Owen 27 September 202327 September 2023

Puzzlingly shallow faults in western Türkiye are likely getting a boost from below.

A fault segment offset an agricultural field during the Kahramanmaraş earthquake sequence.
Posted inFeatures

The 2023 Türkiye-Syria Earthquakes Shifted Stress in the Crust

by Erin Martin-Jones 24 August 202329 August 2023

In February, a devastating magnitude 7.8 earthquake struck the eastern Mediterranean, triggering a second major jolt and a cascade of aftershocks.

Illustration of the Earth's internal structure.
Posted inEditors' Vox

Digging Deep into Interactions Between the Core and Mantle

by Takashi Nakagawa, Taku Tsuchiya, Madhusoodhan Satish-Kumar and George Helffrich 24 July 20234 August 2023

A new book presents major advances in our understanding of core-mantle interaction and co-evolution, and showcases technological developments improving our insights into deep Earth processes.

Map and graphs from the paper.
Posted inEditors' Highlights

Machine Learning Helps Constrain the Thickness of Ancient Crust

by Emily Chin 1 June 202331 May 2023

A machine learning model trained using data on the chemical composition of magmatic rocks yields comparable, if not better, results to previously developed geochemical proxies.

Posts pagination

Newer posts 1 2 3 4 5 6 … 13 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

Drought Drove the Amazon’s 2023 Switch to a Carbon Source

25 February 202625 February 2026
Editors' Highlights

Tectonic Modifications Shape Surface Environment and Landscape

2 March 202626 February 2026
Editors' Vox

A Double-Edged Sword: The Global Oxychlorine Cycle on Mars

10 February 202610 February 2026
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