A new global analysis of the last 19 million years of seafloor spreading rates found they have been slowing down. Geologists want to know why the seafloor is getting sluggish.

Magnetic bands provide evidence of sea-floor spreading 1963. In 1963, Fred Vine, Drummond Matthews, ... This supported the theory that Harry Hess had put forth, ...

Deep below the surface of the ocean, bacteria and critters that feed off nutrients spouting from hydrothermal vents met with ...

Sea-floor Spreading: The process of Seafloor spreading is a geologic one where the tectonic plates which large slabs of Earth's lithosphere, tear apart from each other.

More information: Colleen A. Dalton et al, Consequences of a Global Slowdown in Seafloor Spreading for Sea Level and Mantle Heat Loss, Geochemistry, Geophysics, Geosystems (2025). DOI: 10.1029 ...

In 2019, the U.S. began a seafloor mapping initiative that included the Great Lakes. The project should be able to take note of sunken vessels or other objects resting on the lakebed. The seafloor ...

Of central concern are the plumes of sediment that mining would create, both at the seafloor and at depths around 1,000 meters, which have “some of the clearest ocean waters,” said Jeffrey ...