Oroxenia alpina: Diferenzas entre revisións
Contido eliminado Contido engadido
Sen resumo de edición |
Sen resumo de edición |
||
Liña 3:
[[Ficheiro:Alpiner Gebirgsgürtel.png|miniatura|O cinto alpídico en Europa e Asia.]]
A '''oroxenia alpina''' ou '''oroxénese alpina''' (ás veces tamén se usa o termo '''oroxenia alpídica''' ou ciclo alpídico cun significado máis xeral e xeograficamente menos concreto<ref>Francisco Anguita Virella. Origen e historia de la Tierra. Editorial Rueda. . 1988. Páxina 452 e ss. ISBN 84-7207-052-2.</ref>) é un proceso [[oroxenia|oroxénico]] (de formación de montañas) que tivo lugar no [[Mesozoico]] tardío (Eoalpino) e [[Cenozoico]], causado polo choque de continentes do sur contra os do norte (o que eran a Europa e Asia orixinais)<ref>Moores, E.M., Fairbridge, R.W. (Editors), 1998: ''Encyclopedia of European and Asian Regional Geology.'' Encyclopedia of Earth Sciences Series, London, 825 pp.</ref> Como resultado formáronse as montañas do chamado [[cinto alpídico]], que vai desde a península Ibérica a Indochina. Entre as montañas formadas neste cinto están, de oeste a leste, os [[Montes Atlas|Atlas]], o [[Rif]], a [[cordilleira Bética]], a [[cordilleria Cantábrica]], os [[Pireneos]], os [[Alpes]] (que lle dan o nome á oroxenia), os [[Apeninos]], os [[Alpes Dináricos]], as montañas [[Pindo|Helénicas]] (Helénidas), o [[Cárpatos]], as montañas dos [[Balcáns]], os [[Montes Taurus]], a [[meseta Armenia]], os montes do [[Cáucaso]], os [[Alborz]], os [[Montes Zagros]], o [[Hindu Kush]], os [[Montes Pamir]], o [[Karakorum]] e os [[Himalaias]].{{Citation needed|date=January 2018}} Con frecuencia utilízanse nomes específicos para a oroxenia que afectou á formación de cadeas montañosas concretas, como, por exemplo: [[oroxenia Carpatiana]] para os Cárpatos, oroxenia helénica para os montes Helénicos ou oroixenia himalaia para os Himalaias.
<!--▼
The Alpine orogeny has also led to the formation of more distant and smaller geological features such as the [[Weald–Artois Anticline]] in southern England and northern France, the remains of which can be seen in the chalk ridges of the [[North Downs|North]] and [[South Downs]] in southern England. Its effects are particularly visible on the [[Isle of Wight]], where the [[Chalk Group]] and overlying [[Eocene]] strata are folded to near-vertical, as seen in exposures at [[Alum Bay]] and [[Whitecliff Bay]], and on the [[Dorset]] coast near [[Lulworth Cove]].{{Citation needed|date=January 2018}} Stresses arising from the Alpine orogeny caused the Cenozoic uplift of the [[Sudetes#Geology|Sudetes]] mountain range<ref name=Piotr2011>{{cite journal |last1=Migoń |first1=Piotr |author-link=Piotr Migoń |date=2011 |title=Geomorphic Diversity of the Sudetes - Effects of the structure and global change superimposed |url= |journal=[[Geographia Polonica]] |volume=2 |issue= |pages=93–105 |doi= |access-date=December 5, 2017}}</ref> and possibly [[fault (geology)|faulted]] rocks as far away as [[Öland]] in southern Sweden during the [[Paleocene]].<ref>{{cite journal |authors=Goodfellow B.W., Viola G., Bingen B.,Nuriel P., Kylander-Clark A.|date=2017 |title=Palaeocene faulting in SE Sweden from U–Pb dating of slickenfibre calcite |url= |journal=[[Terra Nova (journal)|Terra Nova]] |volume=00 |issue= |pages=1–8 |doi=10.1111/ter.12280 |access-date=January 3, 2018 }}</ref>▼
▲
▲<!--
The Alpine orogeny is caused by the continents [[Africa]] and [[India]] and the small [[Cimmerian plate]] colliding (from the south) with [[Eurasia]] in the north. [[Convergent boundary|Convergent movements]] between the [[Plate tectonics|tectonic plates]] (the [[Indian plate]] and the [[African plate]] from the south, the [[Eurasian plate]] from the north, and many smaller plates and microplates) had already begun in the early [[Cretaceous]], but the major phases of mountain building began in the [[Paleocene]] to Eocene. The process continues currently in some of the Alpide mountain ranges.
| |||