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seafloor

Stacked sedimentary rock layers of different thicknesses make up a turbidite bed.
Posted inScience Updates

Submarine Avalanche Deposits Hold Clues to Past Earthquakes

by Valerie Sahakian, Debi Kilb, Joan Gomberg, Nora Nieminski and Jake Covault 18 March 202418 March 2024

Scientists are making progress on illuminating how undersea sedimentary deposits called turbidites form and on reconstructing the complex histories they record. But it’s not an easy task.

Aerial photo of the Bahamian coastline with the ocean and a sandy shoreline
Posted inNews

Scientists Quantify Blue Carbon in Bahamas Seagrass

by Robin Donovan 14 March 202414 March 2024

The island nation’s underwater fields store huge reserves of carbon, though not as much as scientists thought.

View from a remotely operated vehicle looking down at the seabed, showing rounded lumps of black lava sitting on top of red clay.
Posted inNews

A Long-Lost Tropical Island Lies Off Brazil’s Coast

by Erin Martin-Jones 12 March 202425 October 2024

An undersea volcanic plateau in the southwestern Atlantic was a tropical island 45 million years ago.

Colorful multibeam bathymetry shows pits likely created by porpoises on the seafloor. Some pits have merged together to create bigger conjoined pits.
Posted inNews

Mysterious Seafloor Pits May Be Made on Porpoise

by Andrew Chapman 15 February 20246 June 2024

Some shallow seafloor depressions off the coast of Germany that look like those associated with methane might instead be the work of porpoises.

Scientists on a boat lowering a seismometer into the water.
Posted inEditors' Vox

The Not-So-Silent Depths

by Gaye Bayrakci and Frauke Klingelhoefer 9 February 202412 February 2024

A new book reveals that ocean depths are far from silent voids, but are actually alive with noise.

Two men on a boat empty shrimp and other sea creatures out of a large net, which hangs above them and drips water.
Posted inNews

Bottom Trawling Shreds the Seafloor. It May Also Be a Huge Source of Carbon Emissions.

by Max Graham, Grist 24 January 202424 January 2024

Dragging nets along the ocean bed wrecks marine life, but researchers can’t agree on how bad it is for the climate.

Labeled petri dishes and small plastic containers filled with fragments of black glass sit on a tabletop and in sample drawers.
Posted inFeatures

The Importance of Archiving the Seafloor

by Christina DiCenzo, Katherine A. Kelley, Nichole Anest, Cara Fritz and Jeff Donnelly 18 January 202418 January 2024

Marine geological sample repositories are vital for ocean science, climate change studies, and more. The value of their collections is growing amid efforts to meet rising demand for their services.

海底的彩色测深图像,其中海拔最高的点为红色,海拔最低的点为深蓝色。
Posted inResearch Spotlights

大洋中脊两侧的海底形态与岩浆供给有关

by Rebecca Owen 12 January 202412 January 2024

新的研究表明,大洋中脊形态变化的来源可能比科学家们想象的要深。

Bubbles and the silhouettes of fish are seen from below, with light from the surface above them.
Posted inFeatures

Oceanic Cacophony 

by Alka Tripathy-Lang 21 December 202321 December 2023

The ocean is a pretty loud place, and anthropogenic noise is adding another layer to the soundscape.

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.

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