For faster navigation, this Iframe is preloading the Wikiwand page for 仰冲.

仰冲

此条目可参照英语维基百科相应条目来扩充。 (2021年10月12日)若您熟悉来源语言和主题,请协助参考外语维基百科扩充条目。请勿直接提交机械翻译,也不要翻译不可靠、低品质内容。依版权协议,译文需在编辑摘要注明来源,或于讨论页顶部标记((Translated page))标签。

仰冲(Obduction)是一种地质过程,指密度更大的洋壳聚合性板块边缘处从下降的海洋板块上被剥离,并推覆到到邻近板块上[1]。这邻近的板块也可能是密度小的陆壳[2]。仰冲不如俯冲常见[3],因为密度较大的大洋岩石圈通常会在较轻的大陆板块下方俯冲。仰冲与造山带弧后盆地的板块碰撞有关[4]

仰冲通常发生在俯冲带,大洋壳中的基性和超基性岩石碎块从地幔逆冲到大陆地壳上,成为蛇绿岩套[5]。仰冲也会发生在一个小的洋壳板块夹在两个较大的大陆板块之间,当两个大陆板块碰撞时,夹在它们之间的洋壳被挤入到相邻的大陆板块之间,由此产生造山运动[6]。 大多数仰冲一般在俯冲带上方的弧后盆地开始,在洋壳闭合或造山运动期间完成[7]

仰冲的例子有新喀里多尼亚塞浦路斯特罗多斯山

参考文献

[编辑]
  1. ^ Plate Tectonics > Glossary > M - R. [2021-10-10]. (原始内容存档于2021-10-10). 
  2. ^ Plate tectonics Glossary M-R https://www.geolsoc.org.uk/Plate-Tectonics/Glossary/M-R页面存档备份,存于互联网档案馆
  3. ^ Sarah J. Edwards, Wouter P. Schellart, Joao C. Duarte. Geodynamic models of continental subduction and obduction of overriding plate forearc oceanic lithosphere on top of continental crust: 1494-1515. [2021-10-10]. (原始内容存档于2022-03-06). 
  4. ^ Curved orogenic belts, back-arc basins, and obduction as consequences of collision at irregular continental margins (PDF). 
  5. ^ Dewey, J. F., 1976. Ophiolite Obduction. Tectonophysics, v. 31, p.93-120
  6. ^ Dewey, J. F. and Bird, J.M., 1971. Origin and emplacement of the ophiolite suite: Appalachian ophiolites in Newfoundland. J. Geophys. Res., 76:3179-3206
  7. ^ Church, W. R., 1972. Ophiolite: its definition, origin as oceanic crust, and mode of emplacement in orogenic belts, with special reference to the Appalachians. Dep. Energy, Mines Resource. Can., Publ., 42:71-85
{{bottomLinkPreText}} {{bottomLinkText}}
仰冲
Listen to this article

This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:

This article was just edited, click to reload
This article has been deleted on Wikipedia (Why?)

Back to homepage

Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}

Install Wikiwand

Install on Chrome Install on Firefox
Don't forget to rate us

Tell your friends about Wikiwand!

Gmail Facebook Twitter Link

Enjoying Wikiwand?

Tell your friends and spread the love:
Share on Gmail Share on Facebook Share on Twitter Share on Buffer

Our magic isn't perfect

You can help our automatic cover photo selection by reporting an unsuitable photo.

This photo is visually disturbing This photo is not a good choice

Thank you for helping!


Your input will affect cover photo selection, along with input from other users.

X

Get ready for Wikiwand 2.0 🎉! the new version arrives on September 1st! Don't want to wait?