mountain — mountainless, adj. /mown tn/, n. 1. a natural elevation of the earth s surface rising more or less abruptly to a summit, and attaining an altitude greater than that of a hill, usually greater than 2000 ft. (610 m). 2. a large mass of something… … Universalium
Central Valley (California) — The Central Valley is a large, flat valley that dominates the central portion of the U.S. state of California, United States. It is home to many of California s most productive agricultural efforts.The valley stretches nearly 400 miles (600 km)… … Wikipedia
Epeirogenic movement — Epeirogenic or continent forming movements, act along the radius of the earth. They are also called radial movements. Their direction maybe towards(subsidence) or away(uplift) from the centre of the earth. They take place over broad areas and are … Wikipedia
Tolstoj quadrangle — The Tolstoj quadrangle in the equatorial region of Mercury runs from 144 to 216° longitude and 25 to 25° latitude. It was provisionally called Tir , but renamed after Leo Tolstoy by the International Astronomical Union in 1976. [International… … Wikipedia
Stockton Arch — The Stockton Arch is a geologic feature underlying the Central Valley in California in the vicinity of the delta of the Sacramento and San Joaquin Rivers, near the city of Stockton. The Stockton Arch is an upwarping of the crust beneath the thick … Wikipedia
Black Hills — a group of mountains in W South Dakota and NE Wyoming. Highest peak, Harney Peak, 7242 ft. (2205 m). * * * Group of mountains in western South Dakota and northeastern Wyoming, U.S. Occupying about 6,000 sq mi (15,540 sq km), they lie between the… … Universalium
dome — domelike, adj. /dohm/, n., v., domed, doming. n. 1. Archit. a. a vault, having a circular plan and usually in the form of a portion of a sphere, so constructed as to exert an equal thrust in all directions. b. a domical roof or ceiling. c. a… … Universalium
United States — a republic in the N Western Hemisphere comprising 48 conterminous states, the District of Columbia, and Alaska in North America, and Hawaii in the N Pacific. 267,954,767; conterminous United States, 3,022,387 sq. mi. (7,827,982 sq. km); with… … Universalium
Cenozoic Era — Third of the major eras of Earth history, and the interval of time during which the continents assumed their modern configurations and geographic positions. It was also the time when the Earth s flora and fauna evolved toward those of the present … Universalium
sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… … Universalium
Central Russian Upland — ▪ region, Russia Russian Sredne russkaya Vozvyshennost, large upland area of the Russian Plain, in the central part of European Russia. It stretches in a north–south direction from the Oka River to the Donets River and the Donets Ridge.… … Universalium