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Clausthal-Zellerfeld

(Encyclopedia)Clausthal-Zellerfeld klousˈtäl-tsĕlˈərfĕlt [key], town, Lower Saxony, central Germany, a resort in the Harz Mts. Its manufactures include textiles and wood products. The town was once a center f...

Sapulpa

(Encyclopedia)Sapulpa səpŭlˈpə [key], city (1990 pop. 18,074), seat of Creek co., E central Okla; inc. 1898. It is the trade center of a farm and oil region. Furniture, zinc alloys, dinnerware, glass, and floor...

Timmins

(Encyclopedia)Timmins, town (1991 pop. 47,461), central Ont., Canada, on the Mattagami River. Timmins is the commercial center of the rich Porcupine gold-mining district, where gold was first discovered in 1909. Si...

Ordu

(Encyclopedia)Ordu ôrdo͞oˈ [key], city (1990 pop. 101,306), capital of Ordu prov., N Turkey, a port on the Black Sea. Copper, zinc, and iron are exported. It is the site of Cotyora, founded by Greek colonists, c...

Val d'Or

(Encyclopedia)Val d'Or väl dôr [key], town (1991 pop. 23,842), SW Que., Canada, SE of Rouyn-Noranda. It is a mining center. Gold was discovered in the region in 1909; copper, zinc, lead, and molybdenum are also m...

Bathurst, city, Canada

(Encyclopedia)Bathurst băthˈərst [key], city, N N.B., Canada, on Chaleur Bay at the mouth of the Nepisiguit ...

Kolwezi

(Encyclopedia)Kolwezi kōlwĕzˈē [key], city (1984 pop. 416,122), Haut-Katanga prov., SE Congo (Kinshasa). It is a center for copper and cobalt mining. There are copper-ore concentration plants, a zinc refinery, ...

Verkhoyansk Range

(Encyclopedia)Verkhoyansk Range, mountain chain, c.600 mi (970 km) long, E Siberian Russia, in the Sakha Republic. It forms a vast arc along the Lena and Aldan rivers and rises to c.8,150 ft (2,480 m) in the south....

complex ion

(Encyclopedia)complex ion, charged molecular aggregate (see ion), consisting of a metallic atom or ion to which is attached one or more electron-donating molecules. In some complex ions, such as sulfate, SO4−2, t...

Moresnet

(Encyclopedia)Moresnet môrānāˈ [key], district, 1.5 sq mi (3.9 sq km), Liège prov., E Belgium, near the German border. It was formerly a lead- and zinc-mining center. Under joint Prussian and Dutch (after 1830...