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seafloor

Close-up view of light-colored, underwater hydrothermal rock formations
Posted inOpinions

A Transformative Carbon Sink in the Ocean?

by Doug Reusch, Kayleigh Brisard, Gil Hamilton and Carson Theriault 12 December 202312 December 2023

Water-rock reactions in some hydrothermal systems produce both hydrogen, which could be tapped for clean energy, and alkaline solutions that could help draw down atmospheric carbon dioxide.

Carbonate gravels up to boulder size (with human scale) are scattered on the seaward side of the island. Mangroves were planted and propagated.
Posted inNews

A Philippine Island Detective Story

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 11 December 202311 December 2023

Researchers snorkeled, drilled, profiled, mapped, and interviewed to unlock clues to how an island was born.

A boxy remotely operated vehicle is lowered by crew in yellow hard hats into the ocean off CCGS Amundsen.
Posted inENGAGE, News

Local Fishers Help Uncover Coral Clinging to Underwater Cliffs

by Andrew Chapman 6 December 20236 December 2023

Their knowledge led to more accurate seafloor maps and a hidden trove of biodiversity in the Labrador Sea.

A colorful bathymetric image of the seafloor, in which the points at highest elevation are red and the points at lowest elevation are dark blue.
Posted inResearch Spotlights

Seafloor Shapes on the Flanks of Mid-Ocean Ridges Linked to Magma Supply

by Rebecca Owen 5 December 202312 January 2024

New research suggests the source of morphologic variation on mid-ocean ridges might be deeper than scientists thought.

A colorful bathymetric image of the Minami Kasuga seamount, with the highest parts of the mountain in red and the lowest parts in blue
Posted inResearch Spotlights

Subducted Seamounts May Lead to Larger Earthquakes

by Nathaniel Scharping 30 November 202330 November 2023

New findings show that underwater mountains may increase friction along subduction zones, building up stress and making larger ruptures more likely.

Sunset from the ocean drilling communitiy’s scientific workhorse, the Joides Resolution.
Posted inFeatures

There Is No JOIDES in Mudville

Damond Benningfield, Science Writer by Damond Benningfield 15 November 202313 October 2026

After almost 4 decades of research, the JOIDES Resolution will retire in 2024, leaving the ocean floor in peace (for now).

Sedimentos de varios tamaños yacen sobre el fondo marino. Un aura de rayos de sol brilla sobre el océano azul oscuro.
Posted inNews

Arenas de aguas profundas y dónde encontrarlas

by Emily Shepherd 2 October 20232 October 2023

Antiguas avalanchas submarinas llevaron arena al abismo oceánico en el momento en que algunos menos lo esperaban.

A reef teems with life in shallow water.
Posted inNews

Shifts in Tectonic Plates Change Biodiversity

by Danielle Beurteaux 19 September 202319 September 2023

A 36-million-year cycle of marine biodiversity booms and busts matches the movements of plate tectonics, linking what happens deep below the ocean to what’s happening in it.

Steep cliffs of Santorini, Greece
Posted inNews

Decoding an Ancient Tsunami from the Ground Up

by Mackenzie White 7 September 20237 September 2023

The seafloor around Santorini is helping scientists investigate forces behind the devastating Minoan tsunami.

Air bubbles of different sizes rise through water.
Posted inNews

Scientists Discover a Way of Forming Suspended Layers of Sediment

Katherine Kornei, Science Writer by Katherine Kornei 1 August 20232 August 2023

Laboratory experiments suggest that underwater gas eruptions—due to the venting of gas hydrates, for example—could trigger the formation of layers of suspended sediment in the ocean.

Posts pagination

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

Features from AGU Publications

Research Spotlights

The Ocean Circulation That Persists Even After a Key AMOC Component Fails

13 October 202613 October 2026
Editors' Highlights

Limits of Satellite Detection of Extreme Carbon Cycle Events

7 October 20267 October 2026
Editors' Vox

Where Fire Ends, Chemistry Begins

30 September 202630 September 2026
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