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pothole

(Encyclopedia)pothole, in geology, cylindrical pit formed in the rocky channel of a turbulent stream. It is formed and enlarged by the abrading action of pebbles and cobbles that are carried by eddies, or circular ...

Wen Jiabao

(Encyclopedia)Wen Jiabao wĕnˈ jyäˈbouˈ [key], 1942–, Chinese political leader, b. Tianjin. Originally a geologist, he worked for the Gansu provincial geological bureau (1968–82), where he was the head of i...

Tharp, Marie

(Encyclopedia)Tharp, Marie, 1920–2006, American oceanographer and cartographer, grad. Univ. of Michigan (M.A. 1944). A geologist with experience in mapping, she came to Columbia Univ. as a geology research assist...

Fenneman, Nevin M.

(Encyclopedia)Fenneman, Nevin M. nĕvˈĭn fĕnˈəmən [key], 1865–1945, American geologist, geographer, and teacher, b. Lima, Ohio; B.A. (1883) Heidelberg College, Ohio; M.A. (1900); Ph.D. (1901) Univ. of Chica...

Dutton, Clarence Edward

(Encyclopedia)Dutton, Clarence Edward, 1841–1912, American geologist, b. Wallingford, Conn., grad. Yale, 1860. After service in the army during and after the Civil War, he was a member (1875–91) of the U.S. Geo...

Werner, Abraham Gottlob

(Encyclopedia)Werner, Abraham Gottlob äˈbrähäm gôtˈlōp vĕrˈnər [key], 1750–1817, German geologist. In 1775 he became inspector and teacher in the mining academy at Freiberg, which through his efforts be...

Novalis

(Encyclopedia)Novalis frēˈdrĭkh fən härˈdənbĕrk [key], 1772–1801, German poet. He studied philosophy under Schiller, Schlegel, and Fichte and was especially influenced by Fichte. He later studied geology....

Manning, Patrick Augustus Mervyn

(Encyclopedia)Manning, Patrick Augustus Mervyn, 1946–2016, Trinidadian political leader, prime minister of Trinidad and Tobago (1991–95, 2001–10). He entered politics in the 1960s while studying geology at th...

petrology

(Encyclopedia)petrology, branch of geology specifically concerned with the origin, composition, structure, and properties of rocks, primarily igneous and metamorphic, and secondarily sedimentary. It includes petrog...

Velasco, José María

(Encyclopedia)Velasco, José María hōsāˈ märēˈä vāläsˈkō [key], 1840–1912, Mexican landscape painter; teacher of Diego Rivera. A gifted artisan descended from a family of shawl weavers, he entered the...