How tailings dams work. Metals mines use a tremendous amount of water in the process of grinding up and separating minerals from ore, and leave behind waste rock that has been reduced to the ...

Tailings - consisting of water, ground rock and chemical byproducts of mining - never quite go away. The same goes for the risk of failure for the slurry's containment dams, experts say on the ...

WATCH ABOVE: Cleanup crews at the scene of another tailing pond leak, this time near Kamloops. Jeremy Hunka reports. KAMLOOPS, B.C. – A broken valve between two tailings ponds at the New Afton ...

The disaster near the small town of Brumadinho in southeastern Brazil occurred shortly after midday on 25 January 2019. At a nearby iron ore mine, the tailings dam—a storage area for the sludgy ...

Tailings ponds are used to store the waste generated in the process of separating minerals from rocks. Chinese mining companies built thousands of such dumpsites amid the country's mining boom.

The Yankee Doodle Tailings Pond is seen on April 30 in Butte-Silver Bow County. Montana Resources says it wants to increase the facility's storage capacity by raising the elevation of the dam.

The Alberta Energy Regulator (AER) has started an investigation into the death of 32 waterfowl at a Suncor Energy Inc tailings pond on its Base Mine Site, 29 km (18 miles) north of Fort McMurray.

A Canadian environmental nonprofit group, long critical of the Red Chris Mine in the northern watershed of the Stikine River, has released a new report that cites increasing underground seepage of ...