A federal minerals program is funding science on the seafloor mining wants to dig

The National Science Foundation is putting $678,748 through the University of Alaska Fairbanks to study an undersea mountain in the eastern Pacific — and it's doing it through a program pointedly named Critical Minerals & Materials, on exactly the kind of seafloor a nascent deep-sea mining industry has its eye on.

The site is Davidson Seamount, sitting on ocean crust roughly 20 million years old — one of the rare places where scientists can watch heated fluid still moving through crust that ancient. Those hydrothermal flows are what make the seafloor there valuable in two very different ways: they deposit the critical minerals the program is named for, and they feed the specialized communities of life that cluster around such vents. Principal investigator Charles G. Wheat will map the seamount's shape, structure and heat, and sample the fluids seeping from its sediments and springs.

The grant funds basic science, not extraction. But it maps contested ground. As deep-sea mining interest grows worldwide, marine researchers have pushed back on treating these mineral-rich crusts as mere ore — arguing the ferromanganese formations are habitat, home to sponges and corals that took millennia to grow. The same seafloor features that hold the minerals are the ones that hold the life, which is precisely why what's down there is worth mapping before anyone decides what to do with it.