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单词 allochthon
释义

allochthon /ə'lɔkθən/

英汉-汉英词典
n. 因地壳动力搬移到现在位置的岩石或矿物
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  • allophone n. 音位变体
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allochthon n. 因地壳动力搬移到现在位置的岩石或矿物;[岩] 移置体;[地质] 外来体

网络短语:
minor-scale allochthon 小型移置体
英语例句库
  1. The allochthon consists of the Presinian,Sinian and Cambrian system.The autochthon comprises the Devonian and Carboniferous system.
    推覆构造的外来系统为前震旦系、震旦系和寒武系,原地系统为泥盆系和石炭系。

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中文百科

移置岩体

逆冲系统的原理概述。当一个挂壁块达到合理的比例,就可形成推覆构造(Nappe tectonics),而该块挂壁块则被称为推覆体(Nappe,也音译作纳布)。如果在推覆体上形成了剥蚀孔,有关剥蚀孔被称为构造窗。在原地材料中露头的孤立推覆体被称作飞来峰(Klippe)。

移置岩体,又名外来岩体,是一个构造地质学的名词,意思指一大块岩体从原来形成的位置移动到另一个地方。移置的原因通常是因为低角度(少于30°)的逆冲断层位移面(low angle thrust faulting)引起的。在原地材料中露头的孤立推覆体被称作飞来峰(Klippe)。在原地材料中若果因为剥蚀作用而使之从推覆体显露出来,有关剥蚀孔被称为构造窗。

英语百科

Allochthon 移置岩体

Schematic overview of a thrust system. The hanging wall block is (when it has reasonable proportions) called a nappe. If an erosional hole is created in the nappe that is called a window. A klippe is a solitary outcrop of the nappe in the middle of autochthonous material.

In structural geology, an allochthon, or an allochthonous block, is a large block of rock which has been moved from its original site of formation, usually by low angle thrust faulting. An allochthon which is isolated from the rock that pushed it into position is called a klippe. If an allochthon has a "hole" in it so that one can view the autochthon beneath the allochthon, the hole is called a "window" (or Fenster). Etymology: Greek; 'allo' = other, and 'chthon' = earth.

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更新时间:2025/6/17 5:10:47