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geochemistry

Map showing sea surface salinity response to Hurricane Irma in 2017
Posted inEditors' Highlights

Hurricanes Wakes Show Asymmetrical Response in Ocean Salinity

by J. Sprintall 21 January 20211 February 2023

It’s well known that hurricanes can substantially impact ocean surface temperature, but a new study shows they can also induce an ocean salinity response in unexpected ways.

Plot showing X-Ray Diffraction patterns for products from Mars chamber electrostatic discharge experiments using hydrated magnesium sulfate salt starting materials.
Posted inEditors' Highlights

Martian Dust Activities Induce Electrochemistry

by Mariek E. Schmidt 7 January 202115 March 2023

Amorphous materials generated from sulfur and chloride salts by electrostatic discharge in a Mars chamber suggest widespread electrical processes during dust activities.

A group of snailfish, animals that live in deep-sea ecosystems, feeding on a dead fish
Posted inNews

Sinking Fish May Fast-Track Mercury Pollution to the Deep Sea

by Carolyn Wilke 22 December 202018 March 2022

Isotopic analysis indicates that mercury found in deep-sea organisms may have an origin in carrion from near the surface.

Aerial photo of a squared-off archaeological dig
Posted inNews

When Did Archaic Humans Control Fire?

Mary Caperton Morton, Science Writer by Mary Caperton Morton 15 December 202031 October 2023

A familiar geochemical technique shines a new spotlight on early hominin use of fire.

Herd of wildebeests descends from a low cliff into a river.
Posted inNews

La Geología y la Química Impulsan la Migración Animal en el Serengueti

Katherine Kornei, Science Writer by Katherine Kornei 11 December 20206 September 2022

Trabajo de campo en Tanzania sugiere que la química del suelo—influenciada por el vulcanismo local y la actividad tectónica—podría ayudar a determinar la migración sin precedentes de más de un millón de ñus.

Kelp in Monterey Bay, Calif., is seen from below the water surface
Posted inResearch Spotlights

Acidifying Oceans Could Get Help from Kelp

Elizabeth Thompson by Elizabeth Thompson 30 November 202014 December 2023

Forests of fast-growing kelp influence the chemistry of the water in which they live. A new study evaluates their potential to ameliorate ocean acidification in sensitive coastal ecosystems.

A yellow submarine glider floats on the ocean surface.
Posted inResearch Spotlights

Autonomous Minisubmarine Measures Seawater Conditions

by Terri Cook 23 November 202027 September 2022

Forecasts of carbonate chemistry in coastal ecosystems determined from seasonal robotic measurements can improve fisheries management and help mitigate short-term ocean acidification events.

The Alaknanda River, seen from stream level, flows among mountains in northern India.
Posted inResearch Spotlights

Tracking Trace Elements in the Ganga River

by David Shultz 16 October 202016 February 2022

Levels of dissolved trace and heavy metals, which can be toxic, are highly variable across the river basin, concentrating in urban areas with high pollution but diluted by inflow from tributaries.

An aircraft releases chemical dispersant on 5 May 2010 over oil floating on the surface of the Gulf of Mexico
Posted inFeatures

¿Por Qué la Luz Solar es Importante para los Derrames de Petróleo en el Mar?

by Collin P. Ward, C. M. Reddy and E. B. Overton 6 October 202018 May 2022

Una década de investigación desde el desastre de Deepwater Horizon ha revelado cómo la luz solar—su importancia subestimada durante mucho tiempo en la ciencia de derrames de petróleo—altera sustancialmente el petróleo que flota en la superficie del mar.

Posted inAGU News

Garçon and Stolper Receive 2019 Hisashi Kuno Award

by AGU 28 September 202011 November 2021

Marion Garçon and Daniel A. Stolper received the 2019 Hisashi Kuno Award at AGU’s Fall Meeting 2019, held 9–13 December in San Francisco, Calif. This early-career award recognizes “outstanding contributions to the fields of volcanology, geochemistry, and petrology.”

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Features from AGU Publications

Research Spotlights

Mangroves May Be Losing Their Grip on Carbon Storage as Sea Levels Rise

5 June 20263 June 2026
Editors' Highlights

Pre-Existing Structure and Stress Shape Geothermal-Induced Seismicity

2 June 20261 June 2026
Editors' Vox

Small-Scale Indian Ocean Dynamics Underpin Marine Ecology and Climate

4 June 20263 June 2026
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