The particular geochemistry of Río Tinto, a river in southern Spain, makes it a good analogue to Mars. Now this wondrous red river has become a laboratory for Nasa operations destined to explore ...
This image shows acidic mine drainage (AMD) precipitates in the Rio Tinto River, Spain. AMD precipitates are rich in iron oxyhydroxide minerals such as ferrihydrite. These minerals typically grow ...
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