Pacific Ocean iron particles can travel thousands of miles, study finds

Can a better understanding of iron particles that are carried vast distances across the Pacific Ocean help scientists predict how our oceans can reduce carbon emissions?

A new study by researchers at Texas A&M, Rutgers University, the University of South Carolina, the University of Minnesota and the Woods Hole Oceanographic Institute might have just made a big step in getting us the answer.


Researchers determined that iron coming out of hydrothermal vents along volcanic mountain ridges in the Pacific can travel up to 2,500 miles. The iron is important for feeding phytoplankton, which are a key part of the marine food chain. Fish, for example, feed on phytoplankton.

Scientists believe that that the iron from hydrothermal vents and its transformation when mixed with seawater can boost knowledge of how oceans could help reduce the carbon dioxide levels emitted by fossil fuels.


“These phytoplankton are responsible for taking CO2 from the atmosphere and transporting CO2 to deep sea,” said Jessica Fitzsimmons, an Assistant Professor at Texas A&M’s Department of Oceanography, noting that if the phytoplankton had more iron they would grow more.

Researchers made their conclusion by tracing iron plumes from hydrothermal vents and taking seawater samples. To conduct their research, the scientists went out on a U.S. research vessel for 60 days and collected seawater samples at different depths at 36…

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