Geologic hazards — A geologic hazard is one of several types of adverse geologic conditions capable of causing damage or loss of property and life. These hazards can consist of sudden or slow phenomena: * avalanches (snow, rock, or air snow) and its runout *… … Wikipedia
Seismic hazard — refers to the study of expected earthquake ground motions at the earth s surface, and its likely effects on existing natural conditions and man made structures for public safety considerations; the results of such studies are published as seismic … Wikipedia
California Geological Survey — Although it was not until 1880 that the California State Mining Bureau, predecessor to the California Geological Survey, was established, the roots of California s state geological survey date to an earlier time. As might be expected for a state… … Wikipedia
permafrost — /perr meuh frawst , frost /, n. (in arctic or subarctic regions) perennially frozen subsoil. Also called pergelisol. [1943; PERMA(NENT) + FROST] * * * Perennially frozen earth, with a temperature below 32 °F (0 °C) continuously for two years or… … Universalium
Liste der Geoparks in der Volksrepublik China — Dies ist eine Liste der Staatlichen chinesischen Geoparks (chinesisch 中国国家地质公园 Zhongguo Guojia Dizhi Gongyuan, engl. National Geoparks of China), das heißt der hundertachtunddreißig Geoparks, die seit 2007 auf der Liste der chinesischen … Deutsch Wikipedia
Mudslide — This article is about the geologic hazard. For other uses, see Mudslide (disambiguation). A mudslide is the most rapid (up to 80 km/h, or 50 mph) and fluid type of downhill mass wasting. It is a rapid movement of a large mass of mud… … Wikipedia
Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… … Universalium
earthquake — /errth kwayk /, n. 1. a series of vibrations induced in the earth s crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating. 2. something that is severely disruptive; upheaval. [1300 50; ME erthequake … Universalium
North America — North American. the northern continent of the Western Hemisphere, extending from Central America to the Arctic Ocean. Highest point, Mt. McKinley, 20,300 ft. (6187 m); lowest, Death Valley, 276 ft. (84 m) below sea level. 400,000,000 including… … Universalium
Engineering geology — is the application of the geologic sciences to engineering practice for the purpose of assuring that the geologic factors affecting the location, design, construction, operation and maintenance of engineering works are recognized and adequately… … Wikipedia
