An ultraslow-spreading stretch of the Southwest Indian Ridge is thicker than expected: both tectonic and volcanic processes may be feeding the growing seafloor there.
seafloor
Posted inScience Updates
New Insights from Seafloor Mapping of a Hawaiian Marine Monument
New surveys help untangle the complex geologic history of the Hawaiian Archipelago and provide hints about where to seek marine life.
Posted inResearch Spotlights
Deep Atlantic Conduit Boasts Longest Billow Train
Some 4000 meters below sea level, swirling patterns of more than 250 consecutive breaking waves up to 100 meters tall stretch through the Atlantic Ocean's Romanche Trench.
Posted inResearch Spotlights
Rapid Gas Hydrate Forms Pockmarks in Nigeria's Seafloor
The seafloor in deep water regions off the coast of Nigeria is speckled with pockmarks that scientists suggest were mainly made by the rapid formation of gas hydrate.
Posted inResearch Spotlights
Seafloor Changes Above the Tohoku-Oki Earthquake Rupture Zone
Three years after the devastating earthquake, transponders record afterslip deformation on the seabed above the Tohoku-Oki rupture zone.
Posted inScience Updates
A Deep Cabled Observatory: Biology and Physics in the Abyss
The ALOHA Cabled Observatory, located 100 kilometers north of Oahu, is enabling a variety of studies of the biology and physics of the deep ocean.
Posted inNews
Decades-Old Sediment Cores Complicate Cascadia Earthquake History
Scientists have long known that the Pacific Northwest is vulnerable to massive earthquakes, but newly unearthed data raises questions about the strength and frequency of these quakes.