copper schist

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• Copper mining in the United States — US primary copper production 1900 2008. Source: USGS …   Wikipedia

• copper processing — Introduction  use of smelting or leaching, usually followed by electrolytic refining or recovery, to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of copper and of its… …   Universalium

• Harz — Mountains redirects here. For the district of the same name, see Harz (district). Harz Range Country Germany …   Wikipedia

• Geology of Tasmania — Tasmania has a varied geological history, with the world s biggest exposure of diabase, or dolerite. Rocks from the Neoproterozoic, Paleozoic and Mesozoic time periods appear. It is one of the few southern hemisphere areas glaciated during the… …   Wikipedia

• Willow Creek mining district — Infobox Settlement name = Willow Creek mining district official name = settlement type = Alaska Mining District nickname = |pushpin pushpin label position =left pushpin map caption = pushpin mapsize = mapsize = map caption = mapsize1 = map… …   Wikipedia

• Wicklow Mountains — Coordinates: 53°04′52″N 6°23′24″W / 53.08111°N 6.39°W / 53.08111; 6.39 …   Wikipedia

• Geology of Taiwan — Taiwan is active geologically, showing plate boundary tectonics. The island formed at the junction of the Luzon Volcanic Arc (吕宋岛火山弧) and the Ryukyu Volcanic Arc (琉球火山弧). Subduction changes direction at Taiwan. South of the island, the Philippine …   Wikipedia

• Portugal — /pawr cheuh geuhl, pohr /; Port. /pawrdd too gahl /, n. a republic in SW Europe, on the Iberian Peninsula, W of Spain. (Including the Azores and the Madeira Islands) 9,867,654; 35,414 sq. mi. (91,720 sq. km). Cap.: Lisbon. * * * Portugal… …   Universalium

• art and architecture, Egyptian — Introduction       the ancient architectural monuments, sculptures, paintings, and decorative crafts produced mainly during the dynastic periods of the first three millennia BC in the Nile valley regions of Egypt and Nubia. The course of art in… …   Universalium

• Uranium mining in Colorado — Uranium mining in Colorado, United States, goes back to 1872, when pitchblende ore was taken from gold mines near Central City, Colorado. The Colorado uranium industry has seen booms and busts, but continues to this day. Not counting byproduct… …   Wikipedia

• Gold mining in the United States — has taken place since the discovery of gold at the Reed farm in North Carolina in 1799.In 2006 the United States produced approximately 8.360 million troy ounces (260 tonnes) of gold, making it the second or third largest gold producing nation,… …   Wikipedia