翻訳と辞書 Words near each other ・ Continental Reformed church ・ Continental Resources ・ Continental rise ・ Continental Rummy ・ Continental Safari Tour ・ Continental shelf ・ Continental Shelf Act 1964 ・ Continental Shelf Act 1964 (New Zealand) ・ Continental Airlines Flight 1404 ・ Continental Airlines Flight 1713 ・ Continental Airlines Flight 1883 ・ Continental Airlines Flight 603 ・ Continental Airport Express ・ Continental Airways ・ Continental American ・ Continental arc ・ Continental Arena ・ Continental Army ・ Continental Army Encampment Site ・ Continental Artillery Regiment ・ Continental Association ・ Continental Automated Buildings Association ・ Continental Automobile Manufacturing Company ・ Continental Automotive Systems ・ Continental AV1790 ・ Continental Avenue Bridge ・ Continental Baking Company ・ Continental Bank ・ Continental Bank Building ・ Continental Bank of Canada Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Continental arc ： ウィキペディア英語版 Continental arc A continental arc is a type of volcanic arc occurring as an "arc-shape" topographic high region along a continental margin. The continental arc is formed at an active continental margin where two tectonic plates meet and a subduction zone develops. The magmatism and petrogenesis of continental crust is complicated: in essence, continental arcs reflect a mixture of oceanic crust materials, mantle wedge and continental crust materials. ==Origin== When two tectonic plates collide, relatively denser oceanic crust will be subducted under relatively lighter continental crust. Because of the subduction process, the relatively cooler oceanic crust, along with water, is subducted to the asthenosphere, where pressures and temperatures are much higher than the surface of earth. Under such conditions, the downgoing plate releases volatiles such as H2O and CO2, which cause partial melting of the above asthenosphere. This process can create relatively buoyant magma, which subsequently forms a series of volcanoes at the surface along the subduction zone. There are some researchers who argue that refertilization of arc lithospheric mantle may also be an important process associated with arc magmatism. Because the subduction zone (which is also the plate boundary) is generally an arc-shape, geologists named those volcanoes ''volcanic arcs''. A volcanic arc built on continental crust is called a continental arc; when built on oceanic crust the volcanoes form an island arc. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Continental arc」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.