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Lithosphere

Diagram showing the reaction process between carbonatite melt and harzburgite mantle rock.
Posted inEditors' Highlights

Why is the North China Craton Vulnerable to Destruction?

by Sujoy Ghosh 20 October 202218 October 2022

A new study suggests that carbonatite metasomatism, not silicate metasomatism as previously thought, was dominant prior to the removal of the North China Craton in the early Cretaceous.

Different scenarios influencing plate thickness
Posted inEditors' Highlights

Frequency Dependent Plates

by T. W. Becker 16 October 202030 September 2022

Rocks stretch, break, and flow, depending on how and under which conditions they are loaded. A new formulation to better capture Earth’s rheology is explored in the context of plate thickness.

A plot showing the calculated ranges of temperature and strain rate at which earthquakes occur, based on the depth range of earthquakes recorded by local networks of land or ocean bottom seismometers
Posted inEditors' Highlights

Strain Rate: The Overlooked Control on Earthquake Depth

by R. E. Abercrombie and J. Escartin 20 August 20201 October 2021

Regional strain rate may play as significant a role as temperature in governing the depth distribution of earthquakes in mantle lithosphere.

Figuring showing thickness of the crust in the High Arctic and Circum-Arctic regions
Posted inEditors' Highlights

Revealing the Arctic Crust

by Claudio Faccenna 25 July 20191 October 2021

A new model, ArcCRUST, reveals with unprecedent resolution the geometry and the thermal state of the oceanic crust of the High Arctic and Circum-Arctic domain.

Posted inEditors' Highlights

The Many Magmatic Modifications to the African Continent

by J. Geissman 9 January 20185 October 2022

How the very slow moving African Continent, with a lithosphere of quite varied age elements and thickness, has responded to ongoing asthenospheric modification.

Satellite image of the island of Hawaii.
Posted inResearch Spotlights

A Hole in Earth’s Surface

by W. Yan 26 April 20169 November 2022

Research shows that a broken lithosphere underneath the island of Hawai'i could explain the island's patterns of seismic activity.

Posted inResearch Spotlights

Aftershocks of Old Quakes Still Shake New Madrid Seismic Zone

by L. Strelich 24 November 201518 October 2022

Geodetic data show that earthquakes in 1450 and 1811–1812 may be responsible for present-day seismic activity in the region.

Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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