mid-ocean ridges
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Rip in Crust Drives Undersea Volcanism, Says Study
Earthquakes and Violent Sounds Under the Pacific Provide Clues
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Walter Pitman and the Smoking Gun of Plate Tectonics
“We had this magic key, this magic magnetic profile,” Pitman said. “We were able to date it and eventually use it not only as a tool that proved continental drift but a tool by which we could actually reconstruct the pattern of drift, that is the relative position of the continents, and the actual timing…
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The Floor of the Ocean Comes into Better Focus
The bottom of the ocean just keeps getting better. Or at least more interesting to look at.
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Exploring Rugged Hills & Turbulent Waters 4,500 Meters Down
Aboard a ship at the Mid-Atlantic Ridge, scientists are studying how the deepest and coldest waters mix with shallower waters, gaining heat in the process.
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Climate Change Leaves Its Mark on the Sea Floor? Maybe Not
A new study in Science questions the provocative idea that climate change may shape the texture of the sea floor. A Snickers bar helps explain what’s really going on.
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Seafloor Volcano Pulses May Alter Climate
New Data Show Strikingly Regular Patterns, From Weeks to Eons
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Volcanic Plumbing at Mid-Ocean Ridges Goes Far Deeper than Thought
New pictures in the journal Nature Geoscience may help resolve a debate about how new crust forms at mid-ocean ridges where earth’s tectonic plates are slowly pulling apart.
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Tides Play a Role in Triggering Undersea Earthquakes
Can shifting tides trigger earthquakes? Research done by Maya Tolstoy, a geophysicist at Lamont-Doherty Earth Observatory, suggests they do.
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Geophysicist Wins ‘Women of Discovery’ Award
Maya Tolstoy Recognized for Deep-Sea Exploration
AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More