Antler orogeny

Antler orogeny

The Antler orogeny is a mountain-building episode that is named for Antler Peak, at Battle Mountain, Nevada. The orogeny extensively deformed Paleozoic rocks of the Great Basin in Nevada and western Utah during Late Devonian and Early Mississippian time. In the late Devonian, the Antler volcanic island arc terrane collided with was then the west coast of North America in the vicinity of today's border between Utah and Nevada. The collision zone is today signified by the geological alignment called the Carlin Unconformity (or Carlin Trend), an area enriched in various ores including gold. It is also represented by the Roberts Mountains Thrust. It is broadly contemporary with the Acadian orogeny of eastern North America.

The Antler orogeny was first defined by the American geologist Ralph J. Roberts. [Roberts, R.J. 1949. Geology of the Antler Peak quadrangle, Nevada. US Geological Survey Open File Report. 108 p.] [Roberts, R.J. 1951. Geology of the Antler Peak quadrangle, Nevada. USGS Geologic Quadrangle Map GQ-10] It was, however, originally described in terms of the old geology of geosynclines, before the acceptance of what is now known as plate tectonics including the concept of terranes.

References

* [http://jan.ucc.nau.edu/~rcb7/Text_WUS.html Geologic history of Western US] : with maps
* [http://www.geology.ewu.edu/mccollum/ANTLEROROGENICREGION.htm Linda B. McCollum and Michael B. McCollum, "Research within the Antler and Sonoma Orogens, Northwestern Nevada, 1983-1993"]
*"Dictionary of Geological Terms", 3rd. Edition,1984, Robert L. Bates and Julia A. Jackson, Eds., prepared by The American Geological Institute


Wikimedia Foundation. 2010.

См. также в других словарях:

  • Antler orogeny — ▪ geological event       a mountain building event in Late Devonian and Mississippian time (about 340 to 370 million years ago) that affected a linear belt in the Cordilleran Geosyncline, extending from the California–Nevada border northward… …   Universalium

  • Orogeny — Geologic provinces of the world (USGS)   Shield …   Wikipedia

  • Sevier orogeny — The Sevier orogeny was a mountain building event that affected western North America from Canada to the north to Mexico to the south. This orogeny was the result of convergent boundary tectonism between approximately 140 million years (Ma) ago,… …   Wikipedia

  • Acadian orogeny — The Acadian orogeny is a middle Paleozoic deformation, especially in the northern Appalachians, between New York and Newfoundland. In Gaspé and adjacent areas, its climax is dated as early in the Late Devonian, but deformational, plutonic, and… …   Wikipedia

  • 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

  • Carboniferous Period — Interval of geologic time 354–290 million years ago, marked by great changes in world geography. All the landmasses drew closer together as a result of tectonic plate movements. The supercontinent Gondwana occupied much of the Southern Hemisphere …   Universalium

  • Devonian Period — Interval of geologic time from 417 to 354 million years ago; it was the fourth period of the Paleozoic Era. During the Devonian, a giant continent was situated in the Southern Hemisphere (see Gondwana), and other landmasses were located in the… …   Universalium

  • Geology of the Yosemite area — The exposed geology of the Yosemite area includes primarily granitic rocks with some older metamorphic rock. The first rocks were laid down in Precambrian times, when the area around Yosemite National Park was on the edge of a very young North… …   Wikipedia

  • B. Clark Burchfiel — Burrell Clark Burchfiel (born March 21, 1934)[1] is an American structural geologist. Born in Stockton, California, he earned his Ph.D. in 1961 at Yale University. His first academic appointment was to the Geology department at Rice University.… …   Wikipedia

  • Ralph J. Roberts (geologist) — Ralph J. Roberts (1911 2007) was an American geologist and research scientist with the USGS. He is credited with the discovery of the Carlin and Battle Mountain Gold Belts, which make up the richest gold mineral region in Nevada as well as the… …   Wikipedia


Поделиться ссылкой на выделенное

Прямая ссылка:
Нажмите правой клавишей мыши и выберите «Копировать ссылку»