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lava & magma

A woman conducts experiments with a laptop in a lava field while volcanoes erupt in the distance.
Posted inNews

More Than 30,000 Earthquakes Trace the Movement of Magma

Katherine Kornei, Science Writer by Katherine Kornei 14 May 201927 October 2021

Seismometers near Iceland’s Bárðarbunga volcanic system pinpointed thousands of earthquakes in 2014–2015, revealing where molten rock was moving underground before any eruptions occurred.

Residents flee the danger zone surrounding Bali’s Mount Agung after a series of eruptions in late November 2017.
Posted inScience Updates

Forensic Probe of Bali’s Great Volcano

by F. M. Deegan, V. R. Troll and H. Geiger 12 February 201912 September 2022

Evidence from volcanic crystals sheds light on magma storage under Mount Agung and helps explain this giant volcano’s frequent eruptions.

A lava flow rolls down Kīlauea in Hawaii
Posted inResearch Spotlights

A New Tool for Studying Volcanic Eruptions Like Kīlauea

by E. Underwood 9 January 20192 May 2022

A new study sheds light on how magma erodes the conduit it flows through.

A scientist at Kīlauea gathers molten lava samples for research and monitoring of lava composition and chemicals.
Posted inFeatures

Lava Clues Chronicled Kīlauea’s Unusual 2018 Eruption

Ilima Loomis, Science Writer by Ilima Loomis 26 December 20189 November 2021

Samples from Kīlauea volcano’s extraordinary eruption that began last May could offer important insights into the behavior of volcanoes and the underlying mantle.

Posted inEditors' Highlights

Carbonate Melting Enhances Mantle CO2 Fluxes in Old Ocean Basins

by S. D. Jacobsen 17 August 20184 August 2023

The amount of CO2 segregated from the mantle by carbonate melting beneath old oceanic crust may equal that emitted along the mid-ocean ridge system, thereby contributing to the global carbon cycle.

Eruption of Shinmoedake on 27 January 2011
Posted inNews

Two Active Volcanoes in Japan May Share a Magma Source

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 31 July 20186 December 2021

Evidence collected following the 2011 eruption of Japan’s Shinmoedake volcano suggests that the powerful event affected the behavior of an active caldera nearby.

Researchers analyze rocks from Mars’s Gale crater to see whether the conditions under which they formed were really as Earthlike as previously believed.
Posted inResearch Spotlights

Is Mars Not So Earthlike After All?

by E. Underwood 16 July 20183 January 2023

Light-colored Gale crater rocks could have formed from intraplate volcanoes, not continental crust, new study finds.

Researchers analyze traces of volcanic activity and water flooding in Hrad Vallis on Mars
Posted inResearch Spotlights

Tracing the Steps of Hydrothermal Activity in Hrad Vallis, Mars

by S. Witman 10 July 201810 October 2021

Conditions that formed Amazonian age valleys may have been hospitable to microbial life.

Researchers model magma flow under Iceland’s Bárðarbunga volcano to spot previously undetected eruptions
Posted inResearch Spotlights

Magma Flow in a Major Icelandic Eruption

Sarah Stanley, Science Writer by Sarah Stanley 23 May 20181 November 2021

Mechanical modeling suggests that previous, undetected eruptions released tectonic stress near the ice-covered Bárðarbunga volcano.

Kīlauea lava flows
Posted inNews

Faster Lava Flows, Explosive Eruptions Begin at Kīlauea

Ilima Loomis, Science Writer by Ilima Loomis 21 May 20184 October 2021

Scientists say the dramatic increase in flows is likely due to the arrival of younger, hotter magma in the system.

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