Acid mine drainage
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Acid mine drainage, acid and metalliferous drainage, or acid rock drainage is the outflow of acidic water from metal mines and coal mines.
Rio Tinto in Spain presents an acid drainage of both natural and artificial origin (mining)
Rocks stained by ferrous precipitate from acid mine drainage on Shamokin Creek in Northumberland County, Pennsylvania
In this case, the pyrite has dissolved away yielding a cube shape and residual gold. This break down is the main driver of acid mine drainage.
Yellow boy in a stream receiving acid drainage from surface coal mining
Rio Tinto (river)
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The Río Tinto is a highly toxic river in southwestern Spain that rises in the Sierra Morena mountains of Andalusia. It flows generally south-southwest, reaching the Gulf of Cádiz at Huelva. The Río Ti
Acid mine drainage
…Wheal Jane, Cornwall, England Tinto River, Spain Odiel River, Spain…
Roman wooden wheel for extracting water from deep Rio Tinto mines and now in the British Museum (1st-2nd Centuries AD)
The Río Tinto in 2006
Río Tinto river