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lava & magma

A rocky hillside in Antarctica with snow-covered Mount Erebus in the background
Posted inResearch Spotlights

Antarctic Lava Yields Clues to Earth’s Past Magnetic Field

by Sarah Stanley 3 February 20214 October 2021

A new analysis suggests that a widely accepted approximation of ancient magnetic field strength may be less accurate for the past 5 million years than previously thought.

Aerial photo of a string of lava fountains on Kīlauea’s East Rift Zone in 2018
Posted inNews

Corn Syrup Reveals How Bubbles Affect Lava’s Flow

by A. Gasparini 18 December 202028 October 2021

New research shows that huge bubbles can change the viscosity of lava and drastically affect how it moves across the landscape.

On a mountainside in El Manzano, Mendoza Province, Argentina, volcanic rock intrusions contrast with surrounding organic-rich shale
Posted inScience Updates

A Fresh Perspective on Intricate Volcanic Plumbing Systems

by O. Galland, J. Mescua, O. Palma, G. Marín and J. Albino 17 December 202010 November 2021

Combining commercial hydrocarbon and mineral exploration data with novel academic research and modeling capabilities helps answer key questions about underground magma systems.

Satellite image of the island of Mayotte and its surrounding fringing reef
Posted inNews

New Volcano, Old Caldera

by Alka Tripathy-Lang 15 December 20206 September 2022

Researchers suggest a magma chamber sits within an old submarine caldera structure that extends into the mantle. Nearby, a new underwater volcano emerged with a flurry of seismicity.

Scientists stand at the crater rim at Kīlauea Volcano on 26 October 2019
Posted inFeatures

From Lava to Water: A New Era at Kīlauea

by P. A. Nadeau, A. K. Diefenbach, S. Hurwitz and D. A. Swanson 25 September 20204 October 2021

At Kīlauea Volcano, scientists are using unoccupied aircraft to monitor the new water lake, a possible harbinger of explosive activity, that formed after the volcano’s 2018 eruption.

Schematic showing behavior of magma in the Main Ethiopian Rift
Posted inEditors' Highlights

Gas-Rich, Transcrustal Magma Storage in the Main Ethiopian Rift

by Claudio Faccenna 14 August 20208 October 2021

Increments of melt trapped in crystals reveal upper crustal magmas in the Main Ethiopian Rift are rich in water and other volatiles, leading to extensive diffuse degassing and hydrothermal systems.

Dazzlingly lush canopy of the Akatarawa Forest, New Zealand
Posted inNews

New Evidence of a Giant Lava Lamp Beneath the Ancient Pacific

by Kate Evans 1 July 20204 October 2021

Seismic surveys find evidence of a superplume in Earth’s mantle that fueled ancient megaeruptions in the Pacific.

Steamboat Geyser in Yellowstone National Park
Posted inNews

Are Geysers a Signal of Magma Intrusion Under Yellowstone?

by Erik Klemetti 29 May 202027 October 2021

Steamboat Geyser, the world’s tallest, is in the midst of one of its largest periods of activity. Is it linked to new magma intruding under the Yellowstone caldera?

An explosion from Kīlauea Volcano’s summit sends an ash plume into the sky on 27 May 2018.
Posted inResearch Spotlights

Fault Dips Figured in Kīlauea’s Caldera Collapse

by David Shultz 6 January 20206 October 2021

Large-volume volcanic eruptions can create instabilities in the ground above magma chambers, leading to massive collapses and telltale calderas.

Ethan Baxter examining garnet samples on an island cliff in Sifnos, Greece
Posted inNews

Using Garnets to Explore Arc Magma Oxidation

by R. Crowell 26 November 20195 October 2022

Samples collected from Greece help researchers piece together a scientific puzzle.

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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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