Orogeny typically produces orogenic belts, which are elongated regions of deformation bordering continental cratons. Young orogenic belts, in which subduction is still taking place, are characterized by frequent volcanic activity and earthquakes. Older orogenic belts are typically deeply eroded to expose displaced and deformed strata. These are often highly metamorphosed and include vast bodies of intrusive igneous rock called batholiths.[5]
Continental collision of two continental plates to form a collisional orogen. Typically, continental crust is subducted to lithospheric depths for blueschist to eclogite facies metamorphism, and then exhumed along the same subduction channel. (example: the Himalayas)
Orogenic belts are associated with subduction zones, which consume crust, thicken lithosphere, produce earthquake and volcanoes, and often build island arcs. These island arcs may be added to a continental margin during an accretionary orogeny. The orogeny may culminate with continental crust from the opposite side of the subducting oceanic plate arriving at the subduction zone. This ends subduction and transforms the accretional orogeny into a collisional orogeny. The collisional orogeny may produce extremely high mountains, as has been taking place in the Himalayas for the last 65 million years.[5][clarification needed]
^The term mobile belt is sometimes preferred for orogenic belts to which plate-tectonic models cannot be applied as easily due to their age.[1]
Referencesedit
^"mobile belt". www.encyclopedia.com. Oxford University Press. Retrieved 2022-12-26.
^"Orogenic belt | geology". Encyclopedia Britannica. Retrieved 2021-04-29.
^Tony Waltham (2009). Foundations of Engineering Geology (3rd ed.). Taylor & Francis. p. 20. ISBN978-0-415-46959-3.
^Philip Kearey; Keith A. Klepeis; Frederick J. Vine (2009). "Chapter 10: Orogenic belts". Global Tectonics (3rd ed.). Wiley-Blackwell. p. 287. ISBN978-1-4051-0777-8.
^ abc"Orogenic Belt - an overview | ScienceDirect Topics". www.sciencedirect.com. Retrieved 2021-04-29.
^"Ring of Fire | Definition, Map, & Facts". Encyclopedia Britannica. Retrieved 2021-04-29.
External linksedit
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orogenic, belt, confused, with, origen, orogenic, belt, orogen, mobile, belt, zone, earth, crust, affected, orogeny, orogenic, belt, develops, when, continental, plate, crumples, uplifted, form, more, mountain, ranges, this, involves, series, geological, proce. Not to be confused with Origen An orogenic belt orogen or mobile belt a is a zone of Earth s crust affected by orogeny 2 An orogenic belt develops when a continental plate crumples and is uplifted to form one or more mountain ranges this involves a series of geological processes collectively called orogenesis 3 4 Geologic provinces of the world USGS Shield Platform Orogen Basin Large igneous province Extended crust Oceanic crust 0 20 Ma 20 65 Ma gt 65 Ma Contents 1 Overview 2 Notes 3 References 4 External linksOverview editOrogeny typically produces orogenic belts which are elongated regions of deformation bordering continental cratons Young orogenic belts in which subduction is still taking place are characterized by frequent volcanic activity and earthquakes Older orogenic belts are typically deeply eroded to expose displaced and deformed strata These are often highly metamorphosed and include vast bodies of intrusive igneous rock called batholiths 5 nbsp Subduction of an oceanic plate beneath a continental plate to form an accretionary orogen example the Andes nbsp Continental collision of two continental plates to form a collisional orogen Typically continental crust is subducted to lithospheric depths for blueschist to eclogite facies metamorphism and then exhumed along the same subduction channel example the Himalayas Orogenic belts are associated with subduction zones which consume crust thicken lithosphere produce earthquake and volcanoes and often build island arcs These island arcs may be added to a continental margin during an accretionary orogeny The orogeny may culminate with continental crust from the opposite side of the subducting oceanic plate arriving at the subduction zone This ends subduction and transforms the accretional orogeny into a collisional orogeny The collisional orogeny may produce extremely high mountains as has been taking place in the Himalayas for the last 65 million years 5 clarification needed nbsp circum Pacific orogenic belt Pacific Ring of Fire nbsp Alpine Himalayan orogenic beltProminently orogenic belts on the Earth are the circum Pacific orogenic belt Pacific Ring of Fire and Alpine Himalayan orogenic belt 5 Since these orogenic belts are young orogenic belts they form large mountain ranges crustal activity is active and accompanied by volcanic belts and seismic belts 6 Notes edit The term mobile belt is sometimes preferred for orogenic belts to which plate tectonic models cannot be applied as easily due to their age 1 References edit mobile belt www encyclopedia com Oxford University Press Retrieved 2022 12 26 Orogenic belt geology Encyclopedia Britannica Retrieved 2021 04 29 Tony Waltham 2009 Foundations of Engineering Geology 3rd ed Taylor amp Francis p 20 ISBN 978 0 415 46959 3 Philip Kearey Keith A Klepeis Frederick J Vine 2009 Chapter 10 Orogenic belts Global Tectonics 3rd ed Wiley Blackwell p 287 ISBN 978 1 4051 0777 8 a b c Orogenic Belt an overview ScienceDirect Topics www sciencedirect com Retrieved 2021 04 29 Ring of Fire Definition Map amp Facts Encyclopedia Britannica Retrieved 2021 04 29 External links edit nbsp Media related to Orogenic belts at Wikimedia Commons nbsp This plate tectonics article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Orogenic belt amp oldid 1187458997, wikipedia, wiki, book, books, library,
