iron oxides Upper East Mancos River Colorado (IMAGE)
Caption
Iron oxides stain the bed of Upper East Mancos River in southwestern Colorado, an alpine stream affected by acid rock drainage. Concentrations of zinc, copper and sulfate have doubled in the last three decades in Colorado’s high-altitude streams, like the Upper East Mancos, where groundwater flows through bedrock rich in metal sulfides, according to a news study that linked the trend to climate change.
Credit
Andrew Manning
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License
CC BY-SA