Hidden underground danger:North Jersey's 600 abandoned mines New Jersey is susceptible to the effects of sinkholes and subsidence, or the sinking of ... prior extensive mining, creating subsidence ...
With many openpit mines in Southern Africa reaching maturity, the scope for underground mining promises to create new ...
South African rescuers have so far pulled 78 bodies and rescued 166 people from the Stilfontein gold mine over three days of ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback