Basin and Range Province


Basin and Range Province

      arid physiographic province occupying much of the western and southwestern part of the United States. The region comprises almost all of Nevada, the western half of Utah, southeastern California, and the southern part of Arizona and extends into northwestern Mexico. The province has a varied and remarkable topography consisting largely of numerous small, roughly parallel mountain ranges (trending north-south) separated by nearly flat desert plains, or basins. The basins are generally 4,000–5,000 feet (1,200–1,500 m) above sea level, and the mountain ranges rise 3,000–5,000 feet above the level of the basins.

      The northern half of the province is called the Great Basin (q.v.). The Sonoran Desert (q.v.) section extends into Sonora, Mexico, while the Salton Trough extends to the Gulf of California; the Salton Trough is a concave desert basin that descends to 235 feet (72 m) below sea level at the Salton Sea. East of the Sonoran Desert and extending southward from the Colorado Plateau is the Mexican Highland section, which has many of the characteristics of the Great Basin and which covers parts of New Mexico, Arizona, and northern Mexico. To the east of this, the narrow, varied Sacramento section, in New Mexico and western Texas, is a plateau with blocks of eastward-dipping mountains.

      The Basin and Range is a semidesert area with an extremely complex geologic history. Its 100 or so mountain ranges are the remains of crustal rocks that were upraised or uplifted by faulting along north-south lines, after which the resulting blocks were tumbled, eroded, and partly buried by alluvial debris that had accumulated in the desert basins at their feet. Death Valley in California is the lowest of these sediment-filled basins. Most of the basins have no outlets for their drainage, and thus rainwater accumulates in the form of salt lakes (e.g., Walker and Pyramid lakes in Nevada and the Great Salt Lake of Utah) or in playas, which are mud flats occasionally covered by a few inches of rapidly evaporating water. In the southern part of the Basin and Range the intermontane basins are connected by through drainage that contributes to the flow of the lower Colorado River.

* * *


Universalium. 2010.

Look at other dictionaries:

  • Basin and Range Province —   [ beɪsn ənd reɪndʒ prɔvɪns], das Gebiet schmaler, lang gestreckter, meist parallel angeordneter Gebirgsketten (»ranges«) mit dazwischenliegenden meist abflusslosen Becken im Umkreis des Coloradoplateaus in den westlichen USA; umfasst das Große… …   Universal-Lexikon

  • Basin and Range Province — The Basin and Range Province is a large geologic province which includes parts of the southwestern United States and northwestern Mexico, typified by basin and range topography.GeographyThe province extends east from the Sierra Nevada all the way …   Wikipedia

  • Basin and Range Province — Ausdehnung der Basin and Range Province Die Basin and Range Province ist eine sehr weiträumige geologische Provinz, die große Teile der südwestlichen Vereinigten Staaten und des nordwestlichen Mexikos umfasst. Bestimmendes geomorphologisches… …   Deutsch Wikipedia

  • Basin and Range Province — …   Useful english dictionary

  • Basin and Range — is a geologic term for a type of topography characterized by a series of separate and parallel mountain ranges with broad valleys interposed, extending over a more or less wide area. It is typified by the topography found in the Great Basin in… …   Wikipedia

  • Basin and Range — Ausdehnung der Basin and Range Province Die Basin and Range Province ist eine sehr weiträumige geologische Provinz, die große Teile der südwestlichen Vereinigten Staaten und des nordwestlichen Mexikos umfasst. Bestimmendes geomorphologisches… …   Deutsch Wikipedia

  • Province géologique de Basin and Range — 33° N 112° W / 33, 112 …   Wikipédia en Français

  • Northern Basin and Range ecoregion — This article is about the ecoregion designated by the EPA. For the associated geographical feature, see Great Basin. Level III ecoregions in the Pacific Northwest. The Northern Basin and Range (80) borders the Sierra Nevada (5), Eastern Cascades… …   Wikipedia

  • Northern Basin and Range (ecoregion) — The Northern Basin and Range ecoregion is a Level III ecoregion designated by the United States Environmental Protection Agency (EPA) in the U.S. states of Oregon, Idaho, Nevada, Utah, and California. It contains dissected lava plains, rolling… …   Wikipedia

  • Mapimí Basin — ▪ basin, Mexico Spanish  Bolsón de Mapimí        enclosed depression in northern Mexico. Situated in the arid Mesa del Norte and averaging 3,000 feet (900 metres) in elevation, it is structurally similar to the Basin and Range Province in the… …   Universalium


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.