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Undersea Volcanoes ‘Unexpectedly’ Add Iron to the Atlantic Ocean



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This is actually a big deal as the more iron there is in the oceans, the more the oceans are able to absorb CO2:

Previously, oceanographers thought the Atlantic Ocean seafloor didn’t spit out as much iron as other regions. However, a recently discovered plume of iron billowing from the depth of the Atlantic Ocean suggests the seafloor may be pumping iron like a young Arnold Schwarzenegger.

The oceanic iron cloud spreads for more than 1,000 kilometers (621 miles) across the Atlantic from west of Angola, Africa, to northeast of Rio de Janeiro, Brazil. The iron-rich waters flow 1,500 to 3,500 meters (4,921 – 11,482 feet) beneath the surface of the ocean. The complete extent and shape of the iron plume remains to be discovered.

“We had never seen anything like it,” said Mak Saito, Woods Hole Oceanographic Institute scientist and lead author of the study, in a press release. “We were sort of shocked—there’s this huge bull’s-eye right in the middle of the South Atlantic Ocean. We didn’t quite know what to do with it, because it went contrary to a lot of our expectations.”

Cracks in the Earth crust, or hydrothermal vents, on the ocean floor released the iron. However, the type of vent came as a surprise to the Woods Hole Oceanographic Institute and University of Liverpool oceanographers who discovered it.

A long ridge splits the Atlantic Ocean as geological forces gradually force the ocean wider. The slow-spreading Atlantic ridge was thought to produce less iron and other chemicals than vents in regions with speedier splits, like the ridge in the eastern Pacific.

The rest here.

Now, let’s see when climate scientists update their models to account for this new revelation. 



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