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Earth's interior

Scanning Electron Microscope images of deformed olivine micropillars
Posted inEditors' Highlights

Olivine Micropillars Reveal Shallow Lithosphere Rheology

by Y. Bernabé 24 July 202022 September 2022

Micrometer scale investigation of the rheological properties of olivine in pressure and temperature conditions corresponding to the shallow lithosphere.

Posted inNews

Orson Anderson (1924–2019)

by R. C. Liebermann and D. Isaak 8 July 20205 January 2022

This pioneer in the field of mineral physics contributed mightily to our understanding of mineral properties at high temperatures and high pressures and of Earth’s interior.

Two diamonds in the shape of a diamond anvil cell
Posted inAGU News

A Dive into the Deep Earth

by Heather Goss 24 June 202030 November 2022

In July, Eos looks at the incredible capabilities scientists have developed to recreate the enormous pressures and temperatures that exist far below the planet’s surface.

An outcrop of the Franciscan complex on Santa Catalina Island in California, with white quartz veins crosscut by pale beige silicic magmatic dikes
Posted inScience Updates

Modeling Fluid Migration in Subduction Zones

by I. Wada and Leif Karlstrom 16 June 202022 March 2022

Scientists from different disciplines are working together to identify common challenges in and techniques for modeling fluid migration associated with subduction zone processes.

Snapshot from animation frozen on the Pangaea supercontinent in the early Mesozoic
Posted inNews

Visualizing the Deep Carbon Cycle

by C. Fogerty 12 June 20207 October 2021

Geoscientists have created animations to help visualize different components of Earth’s carbon cycle.

World map showing location of permanent geomagnetic observatories and their data availability for electromagnetic source characterization.
Posted inEditors' Highlights

Globally Variable Water Content in the Mantle Transition Zone

by S. D. Jacobsen 9 June 202022 September 2022

Using electromagnetic waves originating in the ionosphere and magnetosphere, conductivity profiles reaching the deep upper mantle show surprising variability in water content.

The M/V Fugro Equator searches the seafloor for MH370
Posted inNews

Search for MH370 Revealed Ocean Crust Waves

by Kimberly M. S. Cartier 8 June 202029 September 2021

Efforts to recover the missing airplane produced high-resolution bathymetry of the southern Indian Ocean that raises new ideas about how ocean crust forms.

Model of the Nazca slab constrained by continent-scale tomography
Posted inEditors' Highlights

The Other, Deeper, South American Flat Slab

by V. Lekic 6 June 202023 January 2023

Tomographers trace the slab subducting beneath South America into the lower mantle, providing the most complete picture of structure beneath the continent to date.

Graphic showing ray-path sampling of Earth by the body-wave constituents of the seismic-event coda-correlation
Posted inEditors' Highlights

Earthquake-coda Tomography Boosts Illumination of the Deep Earth

by Andreas Fichtner 28 May 202027 January 2023

A new tomographic method based on correlations of seemingly chaotic earthquake coda waves yields otherwise unobservable arrivals, thus greatly improving illumination of the deep Earth.

The hyperacidic lake inside the crater of Poás volcano in Costa Rica
Posted inScience Updates

Microbial Influences on Subduction Zone Carbon Cycling

by D. Giovannelli, P. H. Barry, J. M. de Moor, K. G. Lloyd and M. O. Schrenk 3 March 202024 October 2022

An innovative collaboration is investigating how geobiological processes alter fluxes of carbon and other materials between the deep Earth and the surface.

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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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