There are four main methods of mining: underground, surface, placer and in-situ. The type of mining method used depends on the kind of resource that is being targeted for extraction, the deposit's ...

OAKLAND — The difference in mining methods will have a lot to do with how the ground above the mine comes out, two experts told a crowd of area people in a potential mining hotbed Tuesday. Subsidence, ...

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A team of researchers led by Virginia Tech's Center for Advanced Separation Technologies, will explore new methods for cleaning coal in India. With over $1 million from the U.S. Department of State, ...

Scientists from the Vernadsky Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Sciences (GEOHI RAS), together with their Russian and Chinese colleagues, have proposed an ...

EPA has sent two letters to the U.S. Army Corps of Engineers expressing serious concerns about the need to reduce the potential harmful impacts on water quality caused by certain types of coal mining ...

Climate activists worry about the high-energy demand for bitcoin mining. A once-dormant power plant is humming with activity outside Pittsburgh as thousands of miners work 24 hours a day. The miners ...