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Wilhelmshaven

(Encyclopedia) WilhelmshavenWilhelmshavenvĭlˌhĕlms-häˈfən [key], city (1994 pop. 91,680), Lower Saxony, NW Germany, on Jade Bay, an inlet of the North Sea. It is a major oil port and an industrial…

dating

(Encyclopedia) dating, the determination of the age of an object, of a natural phenomenon, or of a series of events. There are two basic types of dating methods, relative and absolute. In relative…

Sioux Falls

(Encyclopedia) Sioux Falls, city (1990 pop. 100,814), seat of Minnehaha co., SE S.Dak., on the Big Sioux River; settled 1856, inc. as a village 1877, as a city 1883. Settlers abandoned the site in…

Crutzen, Paul Jozef

(Encyclopedia) Crutzen, Paul Jozef, 1933–2021, Dutch atmospheric chemist, grad. Univ. of Stockholm (Ph.D. 1968, D.Sc. 1973). After working (1977–80)…

Chamberlin, Thomas Chrowder

(Encyclopedia) Chamberlin, Thomas Chrowder, 1843–1928, American geologist, b. Mattoon, Ill., grad. Beloit College, 1866. He was professor of geology at Beloit (1873–82), president of the Univ. of…

Wilson, J. Tuzo

(Encyclopedia) Wilson, J. Tuzo (John Tuzo Wilson), 1908–93, Canadian geologist and geophysicist, b. Ottawa, Ph.D. Princeton (1936), M.A. Cambridge (1940). He worked for the Geological Survey of…

Weidenreich, Franz

(Encyclopedia) Weidenreich, FranzWeidenreich, Franzvīˈdĕnrīkh [key], 1873–1948, German anatomist and physical anthropologist. He was educated at the universities of Munich, Kiel, Berlin, and…

Ellesmere Island

(Encyclopedia) Ellesmere Island, 82,119 sq mi (212,688 sq km), c.500 mi (800 km) long, in the Arctic Ocean, N Nunavut Territory, Canada; second largest and northernmost island of the Arctic…

Field Museum of Natural History

(Encyclopedia) Field Museum of Natural History, in Chicago, Ill. Founded in 1893 through the gifts of Marshall Field and others, it was first known as the Columbian Museum of Chicago and in 1905 was…

geologic timescale

(Encyclopedia) CE5 geologic timescale, a chronological scale of earth's history used to measure the relative or absolute age of any part of geologic time. Of the numerous timescales, the most…