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Image number: 2437408

Clay loaded with iron oxides and dried out, Rio Tinto, Andalusia, Spain

© Jean-Philippe Delobelle / Biosphoto

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JPEG bitmap image

Image size: 7572x5048 pixels (25.2"x16.8" @300dpi)

Shooting date : 2019-05-23

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Río Tinto ("Red River") is very acidic (Ph 2) and has a deep reddish hue due to iron dissolved in water. The acidity of the watercourse is linked to the drainage of pyrite, which is very present in the subsoil. Extremophilic and endemic bacteria and algae colonize the river bed, forming a fragile biofilm that evokes the hot springs of Yellowstone Park in the USA.

Keywords

Atmosphere / Seasons / Temperate season / Spring

Atmosphere / Meteorological phenomenon / Drought (Meteorology) / Cracked earth

Area / Freshwater wetland area / Body of water / Water level / Lowest water level

May

Matter (substance) / Mineral matter / Sulphur

Europe / European Union / Spain / Andalusia Autonomous community

Aridity (Concept)

Matter (substance) / Mineral matter / Clay

Colour / Colorful

Colour / Red

Economic activity / Mining industry / Mine

Colour / Orange (colour)

Colour / Yellow

Graphic

Dry out

Matter (substance) / Mineral matter / Mineral

Matter (substance) / Mineral matter / Iron

Matter (substance) / Mineral matter / Copper

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