The Secret of the North Pole Orange Rivers – | Iranian and world news

A serious study of an old belief that slows frozen environments slows chemical reactions and explains why the North Arctic rivers are orange, according to . It is now known that ice is better in the release of iron from natural minerals than liquid water.

In recent years, rivers in the Arctic have been painted due to frozen frozen soils as a result of orange heating. The color of these rivers is due to the high iron concentration released from local mineral reserves. Rivers that face such a phenomenon have less oxygen and are more acidic than healthy streams. For this reason, the survival of wildlife becomes more difficult.

It was previously believed that when the iron -rich mineral reserves were imprisoned in the ice, it remains there, but the new research at the University of Omoo Sweden shows that the ice itself is even better than the process of melting. The study showed that ice at a negative temperature of 2 ° C releases more iron than mineral reserves than liquid water at 2 ° C.

“It may sound weird, but ice is not a frozen mass,” says Jean -François Bell. Freezing causes small holes between ice crystals. These holes act as chemical reactors in which the compounds are concentrated and highly acidic. This means that ice can respond to iron minerals even at low temperatures to negative 2 degrees Celsius.

Researchers in the study examined Goethite, which is a mineral in which iron oxide is combined with soils and sediments. The study was conducted with the presence of an organic acid. They not only found that ice releases water better than liquid water, but they also found that frequent freezing and melting cycles were the most effective way to release iron. In addition, they found that fresh water and saline increased the amount of iron release, while seawater reduces the process.

“With the weather warming, the freezing and melting cycles are increasing,” said the main researcher. Each of these cycles transmits iron from soils and high -powered water. This can affect water quality and water ecosystems in large areas.