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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...

Kimberley, town, Canada

(Encyclopedia)Kimberley kĭmˈbərlē [key], town (1991 pop. 6,531), SE British Columbia, Canada. Canada's highest city (3,660 ft/1,115 m), it is the site of the Sullivan mine, where large quantities of silver, lea...

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...

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...

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...

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...

Győngyős

(Encyclopedia)Győngyős dyönˈdyösh [key], city (1991 est. pop. 36,259), N Hungary, at the foot of the Mátra Mts. It is the commercial center of a wine-producing and tobacco-growing region. Lead and zinc are mi...