FunWhy is the Rio Tinto red?

Why is the Rio Tinto red?

The river Tinto, in Huelva , owes its name to the color of its waters, produced by the iron dissolved in them. These contain, in addition to iron, heavy metals, such as copper , zinc and arsenic , and have a very high acidity , with a pH lower than 2. In addition to being red, the waters of the Tinto are dense and with a significant lack of oxygen , for what has always been thought that life was not possible. However, the microorganisms that inhabit its waters are a challenge for science: there are algae, bacteria, protozoa and fungi, which makes this a unique place with exceptional characteristics.

The analyzes have revealed that the conditions in which these microorganisms live correspond to an ancient model, which reproduces the environment in which life developed on Earth during the Archaic period. All this has led scientists to study it, because the model of life could be adapted to the existing conditions on Mars.

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