最近30从www.hoelymoley.com 2023 - 07 - 07 - t13:54:54z //www.hoelymoley.com/feeds/question/17863 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/17863 4 X先生 //www.hoelymoley.com/users/17742 2019 - 08 - 29 - t02:32:09z 2020 - 01 - 27 t12:07:11z

< p >这是我的理解华盛顿的奥林匹克山玄武岩山脉。形成的原因是他们从海洋地壳的地壳隆起而不是大陆地壳的法拉板被北美板块。还有其他山脉(全球),特别是沿海地区的玄武岩海洋地壳,有大致相同的地质? < / p >

//www.hoelymoley.com/questions/17863/-/19055 # 19055 5 让-玛丽•Prival //www.hoelymoley.com/users/18081 2020 - 01 - 23 t10:10:58z 2020 - 01 - 27 t12:07:11z

< p >简短回答:<强>是的,还有其他山脉其中包含海洋地壳岩性< /强>。< / p > < p >的过程描述为“海洋地壳的地壳隆起”叫做< a href = " https://en.wikipedia.org/wiki/Obduction " rel = " nofollow noreferrer " >仰冲< / >。由此产生的岩石序列称为< a href = " https://en.wikipedia.org/wiki/Ophiolite " rel = " nofollow noreferrer " >蛇绿岩< / >。正如你所看到的< a href = " https://en.wikipedia.org/wiki/List_of_ophiolites " rel = " nofollow noreferrer " > < / >,世界各地有很多人!研究最多的是阿曼蛇绿岩之一。我看过法国阿尔卑斯山的Chenaillet蛇绿岩,很壮观。< / p > < p >注意蛇绿岩通常不仅包括玄武岩(通常在形式的枕状熔岩,典型的炮位海底),但也辉长岩等海洋地壳岩性,甚至潜在的岩石圈地幔,经常蛇纹岩橄榄岩(被水)。< / p > <人力资源> < p >编辑:< / p > < p >我发现了一个< a href = " https://archive.usgs.gov/archive/sites/geomaps.wr.usgs.gov/parks/olym/content.html " rel = " nofollow noreferrer " >指南奥林匹克国家公园的地质< / >在美国地质调查局网站。不幸的是一些链接已经死了,但你仍然可以找到大量的信息范围的岩性和地层。页< a href = " https://archive.usgs.gov/archive/sites/geomaps.wr.usgs.gov/parks/olym/olym5.html " rel =“nofollow noreferrer”>“玄武岩及其相关的岩石”< / >提到辉长岩的存在(岩浆岩与玄武岩成分一样,但晶体结构由于慢冷却),但并不是任何地幔岩石。根据另一页< a href = " https://archive.usgs.gov/archive/sites/geomaps.wr.usgs.gov/parks/olym/olym14.html " rel =“nofollow noreferrer”>“岩石板块碰撞和奥运”< / >,玄武岩不是从海洋地壳本身而是从海底火山侵avove板(图26)。 So, the Olympic Mountains would not be an ophiolite per se, but rather an accretionary wedge, i.e. "a thick wedge of rocks produced by the progressive offscraping of ocean floor sediments during subduction and their accretion to the continental margin" (excerpt from the guide's preface).

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