Search results
Results From The WOW.Com Content Network
The Siilinjärvi carbonatite complex, [1] an open-pit mine owned by Yara International, in Siilinjärvi, Finland Coal strip mine in Wyoming. Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which the ...
Sub-surface mining often progresses below the water table, so water must be constantly pumped out of the mine in order to prevent flooding. When a mine is abandoned, the pumping ceases, and water floods the mine. This introduction of water is the initial step in most acid rock drainage situations. Acid mine drainage in Portugal
Sub-surface mining often progresses below the water table, so water must be constantly pumped out of the mine in order to prevent flooding. When a mine is abandoned, the pumping ceases, and water floods the mine. This introduction of water is the initial step in most acid rock drainage situations.
Mine dewatering is the action of removing groundwater from a mine. When a mine extends below the water table groundwater will, due to gravity, infiltrate the mine working. On some projects groundwater is a minor impediment that can be dealt with on an ad-hoc basis.
OSM Regional Structure Map. The Office of Surface Mining Reclamation and Enforcement (OSMRE) is a branch of the United States Department of the Interior.It is the federal agency entrusted with the implementation and enforcement of the Surface Mining Control and Reclamation Act of 1977 (SMCRA), which attached a per-ton fee to all extracted coal in order to fund an interest-accruing trust to be ...
United States 1960 postal stamp advocating water conservation. Water conservation aims to sustainably manage the natural resource of fresh water, protect the hydrosphere, and meet current and future human demand. Water conservation makes it possible to avoid water scarcity. It covers all the policies, strategies and activities to reach these aims.
Generally, water cycle management can be divided into six subsets that approach the issue from varying perspectives: Meteorology, Hydrology, Water resource management, Water Engineering, Water conservation and Environmental monitoring. Recently, politics and socio-economic aspects are also considered in water cycle management due to inequal ...
25th Anniversary of the Surface Mining Law: A report on the protection and restoration of the nation's land and water resources under the Surface Mining Law, Office of Surface Mining, 2003. Available at OSM website. Green, Edward. State and Federal Roles Under the Surface Mining Control and Reclamation Act of 1977, 21 S. Ill. U. L.J. 531 (1997)