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cyanide process

(Encyclopedia)cyanide process or cyanidation, method for extracting gold from its ore. The ore is first finely ground and may be concentrated by flotation; if it contains certain impurities, it may be roasted. It i...

Convention on International Trade in Endangered Species of Wild Fauna and Flora

(Encyclopedia)Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), international agreement that aims to ensure that trade in specimens of wild animals and plants does not threate...

Occupational Safety and Health Administration

(Encyclopedia)Occupational Safety and Health Administration (OSHA), U.S. agency established (1970) in the Dept. of Labor (see Labor, United States Department of) to develop and enforce regulations for the safety an...

fiat money

(Encyclopedia)fiat money fīˈət, fīˈăt [key], inconvertible money that is made legal tender by the decree, or fiat, of the government but that is not covered by a specie reserve. It is commonly understood to b...

inflation

(Encyclopedia)inflation, in economics, persistent and relatively large increase in the general price level of goods and services. Its opposite is deflation, a process of generally declining prices. The U.S. Bureau ...

Nkrumah, Kwame

(Encyclopedia)Nkrumah, Kwame kwäˈmā nkro͞oˈmä [key], 1909–72, African political leader, prime minister ...

Goldfield

(Encyclopedia)Goldfield, small town, SW Nev., a former gold-mining center. Gold was discovered there in 1902, and after an early period of disappointment, large yields of high quality gold were extracted. A rush in...

Mother Lode

(Encyclopedia)Mother Lode, belt of gold-bearing quartz veins, central Calif., along the western foothills of the Sierra Nevada. The term is sometimes limited to a strip c.70 mi (110 km) long and from 1 to 61⁄2 mi...

Obuasi

(Encyclopedia)Obuasi ōbwäˈsē [key], town (1984 pop. 60,617), S central Ghana. Highly concentrated gold ore is mined, and there are gold-extraction plants. Gold was mined in Obuasi by indigenous peoples as early...

International Trade Commission, United States

(Encyclopedia)International Trade Commission, United States, independent agency of the U.S. government established in 1916 as the Tariff Commission; renamed International Trade Commission in 1975. It is charged wit...