In geology, orogeny is the process of mountain building. The process of orogeny can take tens of millions of years and build mountains from plains or even the ocean floor. Orogeny can occur due to continential collisons or volcanic activity. Frequently, rock formations that undergo orogeny are severely deformed and undergo metamorphism. During orogeny, deeply buried rocks may be pushed to the surface. Sea bottom and near shore material may cover some or all of the orogenic area. If the orogeny is due to two continents colliding, the resulting mountains can be very high (see Himalaya). Geology (from Greek γη- (ge-, the earth) and λογος (logos, word, reason)) is the science and study of the Earth, its composition, structure, physical properties, history, and the processes that shape it. ... Mount Cook, a mountain in New Zealand A mountain is a landform that extends above the surrounding terrain in a limited area. ... The tectonic plates of the world were mapped in the second half of the 20th century. ... A volcano is a geological landform (usually a mountain) where magma (rock of the earths interior made molten or liquid by high pressure and temperature) erupts through the surface of the planet. ... Metamorphism can be defined as the mineralogical, chemical and crystallographic changes in a solid-state rock, i. ... The Himalaya is a mountain range in Asia, separating the Indian subcontinent from the Tibetan Plateau. ...

Orogeny usually produces long linear structures, known as orogenic belts. Generally, orogenic belts consist of long parallel strips of rock exhibiting similar characteristics along the length of the belt. Orogenic belts are associated with subduction zones, which consume crust, produce volcanoes, and build island arcs. These island arcs may be added to a continent during an orogenic event. Sedimentary, volcanic, plutonic, metamorphic rock types of North America. ... Categories: Geology stubs | Plate tectonics ... Earth cutaway from core to exosphere. ... An island arc is a type of archipelago formed by plate tectonics as one oceanic tectonic plate subducts under another and produces magma. ... Dymaxion map by Buckminster Fuller shows land mass with minimal distortion as only one continuous continent A continent (Latin continere, to hold together) is a large continuous land mass. ...

Taconic orogeny

Download high resolution version (448x780, 28 KB)United States Geological Survey figure of the Taconic orogeny Source URL: http://vulcan. ... Download high resolution version (448x780, 28 KB)United States Geological Survey figure of the Taconic orogeny Source URL: http://vulcan. ...

List of orogenies

North American orogenies

• Acadian orogeny
  • Eastern U.S. during Silurian and Devonian Periods.
• Antler orogeny
  • Ancestral Sierra Nevada western United States.
• Appalachian orogeny
  • Appalachian Mountains, is a well studied orogenic belt resulting from a late Paleozoic collision between North America and Africa.
• Grenville orogeny
  • Eastern North America from Newfoundland to North Carolina during Late Proterozoic Eon 1800 - ~1100 Myr ago.
• Laramide orogeny
  • Rocky Mountains, western North America, 40-70 Myr ago.
• Nevadan orogeny
  • developed along western North America during the Jurassic Period.
• Ouachita orogeny
  • Ouachita Mountains of Arkansas and Oklahoma is an orogenic belt that dates from the late Paleozoic Era and is most likely a continuation of the Appalachian orogeny west across the Mississippi embayment - Reelfoot Rift zone.
• Penokean orogeny
  • Wisconsin, Minnesota, and Michigan, U. S. A. and southern Ontario, Canada, 1900 Myr ago.
• Taconic orogeny
  • NE U.S. and Canada during the Ordovician Period.

Political highlights of North America North America is the third largest continent in area and the fourth ranked in population. ... The Acadian orogeny is a middle Paleozoic deformation, especially in the northern Appalachians, between Alabama and Newfoundland. ... The Silurian is a major division of the geologic timescale that extends from the end of the Ordovician period, about 439 million years ago (mega years ago, mya), to the beginning of the Devonian period, about 408. ... The Devonian is a major division of the geologic timescale that extends from the end of the Silurian period (360 million years ago (mya)) to the beginning of the Mississippian subperiod of the Carboniferous (408. ... In geology, a period or age is a time span of many millions of years that are assumed to have had similar characteristics. ... The Antler orogeny is an orogeny that extensively deformed Paleozoic rocks of the Great Basin in Nevada during Late Devonian and Early Mississipian time. ... The Sierra Nevada is a mountain range that is mostly in eastern California. ... The Appalachian orogeny is a geological event that formed the Appalachian Mountains. ... The Appalachian Mountains are a system of North American mountains running from Newfoundland and Labrador, Canada to Alabama in the United States, although the northernmost mainland portion ends at the Gaspé Peninsula of Quebec. ... The Paleozoic is a major division of the geologic timescale, one of four geologic eras. ... World map showing location of North America A satellite composite image of North America North America is the third largest continent in area and fourth in population after Asia and Africa in area and population and Europe in population. ... Africa is the worlds second-largest continent in both area and population, after Asia. ... Newfoundland (French: Terre-Neuve; Irish: Talamh an Éisc; Latin: Terra Nova) is a large island off the north-east coast of North America, and the most populous part of the Canadian province of Newfoundland and Labrador. ... State nickname: Tar Heel State Other U.S. States Capital Raleigh Largest city Charlotte Governor Michael Easley Official languages English Area 139,509 km² (28th)  - Land 126,256 km²  - Water 13,227 km² (9. ... In geology, the Proterozoic is an eon prior to the first abundant complex life on earth. ... The Laramide orogeny was a 30 million year period of mountain building in western North America that started in the Late Cretaceous, 70 million years ago, and ended in the Late Paleogene 40 million years ago. ... Rocky Mountain National Park (photo courtesy of NPS) The Rocky Mountains, often called the Rockies, are a broad mountain range in western North America. ... The Nevadan Orogeny was a major mountain building event that took place along the western edge of ancient North America between the Mid to Late Jurassic(between about 180 and 146 million years ago). ... The Jurassic period is a major unit of the geologic timescale that extends from about 200 million years BP at the end of the Triassic to 146 million years BP at the beginning of the Cretaceous. ... The Ouachita Mountains are a mountain range located in Arkansas and Oklahoma. ... State nickname: The Natural State Other U.S. States Capital Little Rock Largest city Little Rock Governor Mike Huckabee Official languages English Area 137,732 km² (29th)  - Land 134,856 km²  - Water 2,876 km² (2. ... Oklahoma is a South Central state of the United States (with strong western and even Midwestern influences) and its U.S. postal abbreviation is OK; others abbreviate the states name Okla. ... The Paleozoic is a major division of the geologic timescale, one of four geologic eras. ... ERA is an abbreviation for several different things, including: the Equal Rights Amendment, a proposed, but unratified, Constitutional amendment in United States Earned run average, a baseball statistic Engine Room Artificer Education Reform Act Engineering Research Associates, a pioneering computer firm from the 1950s Academy of European Law Trier Explosive... The Appalachian orogeny is a geological event that formed the Appalachian Mountains. ... The Mississippi embayment is a physiographic feature in the south-central United States. ... Seismic map New Madrid Seismic Zone - USGS The New Madrid Seismic Zone, also known as the Reelfoot Rift or the New Madrid Fault Line, is a major seismic zone, located in the mideastern United States. ... One of the periods of glaciation was also termed the Wisconsin glaciation. ... State nickname: North Star State Other U.S. States Capital Saint Paul Largest city Minneapolis Governor Tim Pawlenty Official languages None Area 225,365 km² (12th)  - Land 206,375 km²  - Water 18,990 km² (8. ... State nickname: Wolverine State or Great Lakes State Other U.S. States Capital Lansing Largest city Detroit Governor Jennifer Granholm Official languages English Area 250,941 km² (11th)  - Land 147,255 km²  - Water 103,687 km² (41. ... Motto: Ut Incepit Fidelis Sic Permanet (Loyal it began, loyal it remains) Other Canadian provinces and territories Capital Toronto Largest city Toronto Lieutenant Governor James K. Bartleman Premier Dalton McGuinty (Liberal) Area 1,076,395 km² (4th)  - Land 917,741 km²  - Water 158,654 km² (14. ... Illustration of the Taconic orogeny The Taconic orogeny was a great mountain building period that perhaps had the greatest overall effect on the geologic structure of basement rocks within the New York Bight region. ... The Ordovician period is the second of the six (seven in North America) periods of the Paleozoic era. ...

European orogenies

• Alpine orogeny
  • Formation of the Alps during Eocene through Miocene Periods.
• Caledonian orogeny
  • Between Europe and Greenland in the Silurian Period.
• Carpathean orogeny
  • Carpathian Mountains of east Europe during the Miocene Period.
• Hellenic orogeny
  • Greece and Aegean area during Eocene through Miocene Period.
• Ural orogeny
  • Ural Mountains, Eurasia during the Permian Period.
• Variscan orogeny
  • Western Europe, Iberia, and SW England early to mid - Paleozoic Era.

This article is about the continent. ... The Alps arose as a result of the pressure exerted on sediments of the Tethys Ocean basin as its Mesozoic and early Cenozoic strata were pushed against the stable Eurasian landmass by the northward-moving African landmass. ... The Alps is the collective name for one of the great mountain range systems of Europe, stretching from Austria in the east, Slovenia, Italy, Switzerland, Liechtenstein and Germany, through to France in the west. ... The Eocene epoch (56-34 MYA) is a major division of the geologic timescale and the second epoch of the Palaeogene period in the Cenozoic era. ... The Miocene epoch is a period of time that extends from about 23 to 5. ... A satellite composite image of Europe Europe is geologically and geographically a peninsula, forming the westernmost part of Eurasia. ... The Silurian is a major division of the geologic timescale that extends from the end of the Ordovician period, about 439 million years ago (mega years ago, mya), to the beginning of the Devonian period, about 408. ... Carpathian Mountains - Wikipedia /**/ @import /skins-1. ... The Miocene epoch is a period of time that extends from about 23 to 5. ... Greece and the Aegean Sea The Aegean sea in Greece as seen from the island of Greek: Αιγαίον Πέλαγος, Aigaion Pelagos; Turkish: Ege denizi) is an arm of the Mediterranean Sea, located between the Greek peninsula and Anatolia (Asia Minor, now part of Turkey). ... The Eocene epoch (56-34 MYA) is a major division of the geologic timescale and the second epoch of the Palaeogene period in the Cenozoic era. ... The Miocene epoch is a period of time that extends from about 23 to 5. ... The Ural Mountains, (Russian: Ура́льские го́ры = Ура́л) also known simply as the Urals, are a mountain range that run roughly north and south through western Russia. ... African-Eurasian aspect of Earth Eurasia is the landmass composed of the continents of Europe and Asia. ... The Permian is a geologic period that extends from about 280 to 248 million years before the present (mya). ... Iberia can mean: The Iberian peninsula of southwest Europe; That part of it once inhabited by the Iberians, who spoke the Iberian language. ... Royal motto: Dieu et mon droit (French: God and my right) Englands location within the UK Official language English de facto Capital London de facto Largest city London Area  - Total Ranked 1st UK 130,395 km² Population  - Total (2001)  - Density Ranked 1st UK 49,138,831 377/km² Ethnicity... The Paleozoic is a major division of the geologic timescale, one of four geologic eras. ...

Asian orogenies

• The Aravalli-Delhi Orogen (precambrian)
• The Cimmerian and Cathayasian orogenies
  • Active through Triassic and Jurassic Periods along south and southeast Asia.
• Himalayan orogeny
  • The Himalaya Mountains is a result of the ongoing collision of the Indian Plate with the Eurasian Plate.

The term Asian can refer to something or someone from Asia. ... The Aravalli Range is a range of mountains in western India running approximately 300 miles northeast-southwest across Rajasthan state. ... The Precambrian or Cryptozoic is the period of the geologic timescale from the formation of Earth around 4500 million years before the present (BP) to the evolution of abundant macroscopic hard-shelled fossils, which marked the beginning of the Cambrian, some 542 million years BP. Remarkably little is known about... The Triassic is a Geologic period that extends from about 248 to 202 million years (My or megayears) before the present. ... The Jurassic period is a major unit of the geologic timescale that extends from about 200 million years BP at the end of the Triassic to 146 million years BP at the beginning of the Cretaceous. ... World map showing location of Asia Asia is the central and eastern part of the continent of Eurasia, defined by subtracting the European peninsula from Eurasia. ... Fig 1: The earth in the Early Permian. ... The Himalaya is a mountain range in Asia, separating the Indian subcontinent from the Tibetan Plateau. ... The India or Indian Plate is a minor tectonic plate. ... Categories: Plate tectonics | Geology stubs ...

South American orogenies

• Andean orogeny
  • Andes Mountains, 0-200 Myr ago.

South America South America is a continent crossed by the equator, with most of its area in the Southern Hemisphere. ... Note that the geology in this article currently reflects views from the first decade of the 20th century. ...

Antarctic orogenies

• Napier orogeny (4000 ± 200 Myr ago.)
• Rayner orogeny (~ 3500 Myr ago.)
• Humboldt orogeny (~ 3000 Myr ago.)
• Insel orogeny (2650 ± 150 Myr ago.)
• Early Ruker orogeny (2000 - 1700 Myr ago.)
• Late Ruker / Nimrod orogeny (1000 ± 150 Myr ago.)
• Beardmore orogeny (633 - 620 Myr ago.)
• Ross Orogeny (~ 500 Myr ago.)

Greek ἀνταρκτικός, opposite the arctic) is a continent surrounding the Earths South Pole. ...

External links

• Maps of the Acadian and Taconic orogenies
• Antarctic Geology