(Encyclopedia) leaching, method of extraction in which a solvent is passed through a mixture to remove some desired substance from it. A simple example is the passage of boiling water through ground…
(Encyclopedia) Kryvyy RihKryvyy Rihkrĭvĭˈ rĭkh [key], Rus. Krivoy Rog, city (1989 pop. 713,000), SE Ukraine, at the confluence of the Inhulets and Saksagan rivers. It is a rail junction, an…
(Encyclopedia) KirunaKirunakēˈrünä [key], city (1990 pop. 20,470), Norrbotten co., N Sweden. The northernmost city in Sweden, it is the center of the Lapland iron-mining region. The ore is shipped on…
(Encyclopedia) PechengaPechengapyĕˈchĭn-gə [key], Finnish Petsamo, town, NW European Russia, an ice-free port at the head of Pechenga Fjord on the Barents Sea and near the Norwegian border. It is…
(Encyclopedia) Thunder Bay, city (1991 pop. 113,946), SW Ont., Canada, on Thunder Bay inlet of Lake Superior. The city was created in 1970 by the amalgamation of the twin cities of Fort William and…
(Encyclopedia) Pachuca de SotoPachuca de Sotopäch&oomacr;ˈkä ᵺā sōˈtō [key], city (1990 pop. 174,013), capital of Hidalgo state, central Mexico, at the head of a ravine surrounded by foothills of…
